{"id":5137,"date":"2023-07-21T09:52:29","date_gmt":"2023-07-21T13:52:29","guid":{"rendered":"https:\/\/stock.corvair.org\/wordpress\/?p=5137"},"modified":"2025-06-27T17:05:33","modified_gmt":"2025-06-27T21:05:33","slug":"the-7024025-carburetor","status":"publish","type":"post","link":"https:\/\/stock.corvair.org\/wordpress\/2023\/07\/the-7024025-carburetor\/","title":{"rendered":"The 7024025 Carburetor"},"content":{"rendered":"\n<p>I am trying to secure definitive information about the date when the 1964 7024025 carburetor was introduced.   This carburetor was for use ONLY on 1964 FCs, Cars with Factory AC, and cars equipped with first design <a rel=\"noreferrer noopener\" href=\"https:\/\/stock.corvair.org\/wordpress\/2011\/01\/oil-bath-pre-cleaners\/\" data-type=\"URL\" data-id=\"https:\/\/stock.corvair.org\/wordpress\/2011\/01\/oil-bath-pre-cleaners\/\" target=\"_blank\">Oil bath Air Cleaner<\/a> &#8211; essentially any 1964 factory engine equipped with dual air cleaners.<\/p>\n\n\n\n<p>After 60 years it is very difficult to find carburetors with original parts. Given the rarity of both AC and oil bath cars, the best place to look for these carburetors should be on original 1964 FC engines.<\/p>\n\n\n\n<p>Therefore, if anybody has what they believe to be an original 1964 FC engine, please complete the survey at the end of this post or contact me directly.<\/p>\n\n\n\n<p>We are trying to determine two main issues:<br>1) Did ALL 1964 FC engines (95\/110hp, Std\/PG) use 7024025, or did some very early production FCs, perchance, use 7024023\/7024024?<\/p>\n\n\n\n<p>2) Can we definitively identify the differences between the 7024025 carburetor and the 7024023\/4 carburetors?<\/p>\n\n\n\n<p>Documentation:<br>1) The 1964 Chassis Shop Manual Supplement was printed well before the introduction of the 1964 Models and contains numerous errors with respect to 1964 carburetors:<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/Image-7-21-23-at-8.45-AM.jpeg\"><img loading=\"lazy\" decoding=\"async\" width=\"893\" height=\"1024\" src=\"https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/Image-7-21-23-at-8.45-AM-893x1024.jpeg\" alt=\"\" class=\"wp-image-5140\" srcset=\"https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/Image-7-21-23-at-8.45-AM-893x1024.jpeg 893w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/Image-7-21-23-at-8.45-AM-262x300.jpeg 262w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/Image-7-21-23-at-8.45-AM-768x881.jpeg 768w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/Image-7-21-23-at-8.45-AM-131x150.jpeg 131w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/Image-7-21-23-at-8.45-AM.jpeg 985w\" sizes=\"auto, (max-width: 893px) 100vw, 893px\" \/><\/a><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li>It lists a carburetor that was never actually used (7024022)<\/li>\n\n\n\n<li>It doesn&#8217;t list the 7024025 Carburetor<\/li>\n\n\n\n<li>It lists different carburetors for the PG and MT low performance engines, even though the same carburetor was used for both.<\/li>\n\n\n\n<li>Most of the listed carburetor specs were changed on production carburetors (Float Level, Float Drop, Auto Choke Setting, Unloader, Main Jets, Idle Jet)<\/li>\n<\/ul>\n\n\n\n<p>2) 1964 Assembly manuals (car and FC) show 7024025 carburetor in use possibly as early as 9-12-63<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/1964-AC-Assembly-Manual0005.jpeg\"><img loading=\"lazy\" decoding=\"async\" width=\"791\" height=\"1024\" src=\"https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/1964-AC-Assembly-Manual0005-791x1024.jpeg\" alt=\"\" class=\"wp-image-5141\" srcset=\"https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/1964-AC-Assembly-Manual0005-791x1024.jpeg 791w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/1964-AC-Assembly-Manual0005-232x300.jpeg 232w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/1964-AC-Assembly-Manual0005-768x994.jpeg 768w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/1964-AC-Assembly-Manual0005-1187x1536.jpeg 1187w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/1964-AC-Assembly-Manual0005-1583x2048.jpeg 1583w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/1964-AC-Assembly-Manual0005-116x150.jpeg 116w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/1964-AC-Assembly-Manual0005.jpeg 1700w\" sizes=\"auto, (max-width: 791px) 100vw, 791px\" \/><\/a><figcaption class=\"wp-element-caption\">1964 Corvair Assembly Manual Section C64, Sheet C1.00 &#8211; Redrawn and Revised 9-12-63<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4634-scaled.jpeg\"><img loading=\"lazy\" decoding=\"async\" width=\"795\" height=\"1024\" src=\"https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4634-795x1024.jpeg\" alt=\"\" class=\"wp-image-5142\" srcset=\"https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4634-795x1024.jpeg 795w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4634-233x300.jpeg 233w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4634-768x989.jpeg 768w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4634-1193x1536.jpeg 1193w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4634-1591x2048.jpeg 1591w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4634-116x150.jpeg 116w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4634-scaled.jpeg 1988w\" sizes=\"auto, (max-width: 795px) 100vw, 795px\" \/><\/a><figcaption class=\"wp-element-caption\">1964 FC Assembly Manual Section 6 Sheet C1.00 &#8211; see note 1 &#8211; 9-12\/63 was 7024023 Carburetor<\/figcaption><\/figure>\n\n\n\n<p>&#8211; It&#8217;s worth noting a couple of things about engine and transmission types with regards to the assembly manual sheets<br>&#8212; Cars &#8211; RPO C64 (air conditioning) could be ordered with either 95 or 110 engine, and either 3\/4 Spd or PG transmission, but C64 Sheet C1.00 only lists the one carburetor to be swapped. While the car assembly manual does show the use of 7024024 carburetor for 110 engine in Sect L64 Sheet 1.00, that page is drawn earlier than C64 sheet C100 page.  This suggests that early in the model production year all factory AC cars may have used the 7024025 carburetor.<br>&#8212; FCs &#8211; used 95 or 110 engine with 3\/4 Spd or PG transmission, but the FC assembly manual doesn&#8217;t reference instructions for the 110 engine. However, the fact that on 9-12-63 they changed the std carburetor (7024023) to the 7024025 carburetor implies they could have done the same for the HP engine.<\/p>\n\n\n\n<p>3) Chevrolet Service News November 1963 Edition includes a page revising the specifications and applications for 1964 Carburetors.  It is on this page that the 7020425 carburetor is added and stated for use on &#8216;All engines in Corvair &#8220;95&#8221; vehicles; all 5-7-900 series vehicles w\/Air Cond.&#8221;  There is however, an unfortunate error in the table on this page showing the specs for the three carburetors; the first column is &#8220;7024022&#8221;, a number which was never placed into production.  It is most likely a misprint and should have been labeled &#8220;7024025&#8221;.  We come to this conclusion based on the fact that the main jet size in this column is listed as .053&#8243; and Bowl vents are listed as 3-internal, two known characteristics of the 7024025 carburetor.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/CSN-1963-11-Page-09-scaled.jpeg\"><img loading=\"lazy\" decoding=\"async\" width=\"790\" height=\"1024\" src=\"https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/CSN-1963-11-Page-09-790x1024.jpeg\" alt=\"\" class=\"wp-image-5213\" srcset=\"https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/CSN-1963-11-Page-09-790x1024.jpeg 790w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/CSN-1963-11-Page-09-231x300.jpeg 231w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/CSN-1963-11-Page-09-768x996.jpeg 768w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/CSN-1963-11-Page-09-1185x1536.jpeg 1185w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/CSN-1963-11-Page-09-1580x2048.jpeg 1580w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/CSN-1963-11-Page-09-116x150.jpeg 116w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/CSN-1963-11-Page-09-scaled.jpeg 1975w\" sizes=\"auto, (max-width: 790px) 100vw, 790px\" \/><\/a><\/figure>\n\n\n\n<p>4) A TSB was issued to dealers on Feb 14, 1964 advising them to make modifications to carburetors of cars with dealer installed air conditioning, citing &#8220;The change from single air cleaner to dual air cleaners may upset the carburetor fuel calibration and bowl venting&#8230;&#8221; <\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4627.jpeg\"><img loading=\"lazy\" decoding=\"async\" width=\"764\" height=\"1024\" data-id=\"5144\" src=\"https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4627-764x1024.jpeg\" alt=\"\" class=\"wp-image-5144\" srcset=\"https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4627-764x1024.jpeg 764w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4627-224x300.jpeg 224w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4627-768x1029.jpeg 768w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4627-1146x1536.jpeg 1146w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4627-112x150.jpeg 112w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4627.jpeg 1290w\" sizes=\"auto, (max-width: 764px) 100vw, 764px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4626.jpeg\"><img loading=\"lazy\" decoding=\"async\" width=\"777\" height=\"1024\" data-id=\"5143\" src=\"https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4626-777x1024.jpeg\" alt=\"\" class=\"wp-image-5143\" srcset=\"https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4626-777x1024.jpeg 777w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4626-228x300.jpeg 228w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4626-768x1011.jpeg 768w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4626-1166x1536.jpeg 1166w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4626-114x150.jpeg 114w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4626.jpeg 1290w\" sizes=\"auto, (max-width: 777px) 100vw, 777px\" \/><\/a><\/figure>\n<\/figure>\n\n\n\n<p>The modifications were as follows:<br>&#8212; Increase bowl venting by enlarging the external bowl vents to 3\/16&#8242; and drilling out the internal (duckbill) vent to 3\/16&#8243;<br>&#8212; On standard (95hp) engines, replace the #51 main metering jet with the larger #53 jet (note that the High performance engine carburetors already had a #53 jet).<\/p>\n\n\n\n<p>Given that dealer installed air conditioned cars would have been built with either the 7024023 or 7024024 carburetors, they lacked the modifications already present in the 7024025 carburetors which addressed this issue. This TSB, therefore, supports the idea that ALL of the 164 cid engines using dual air cleaners (CAC, FC, early oil bath) would either be equipped with the 7024025 carburetor or would have carburetors which needed to be modified as per the TSB.<\/p>\n\n\n\n<p>5) Bob Helt&#8217;s Books list conflicting information about 1964 carburetor model usage for FCs and CAC with high performance (110hp) engine:<br>&#8211; His first book, &#8220;The Classic Corvair&#8221; 5th edition, copyright 2001, 2002, states that 7024025 carburetor was used for 95hp FC and CAC engines and 7024024 carburetor was used for 110hp FC and CAC engines.  This is most likely incorrect, based on CSN and TSB from Chevrolet.<br>&#8211; His next book, &#8220;How to Identify and Rebuild Corvair Rochester Carburetors&#8221; copyright 2006, states that the 7024025 carburetors was used for ALL FC and CAC engines.  This is most likely correct.<\/p>\n\n\n\n<p>6) March 1, 1964 Parts Book explicitly identifies 7024025 carburetor as correct part for ALL FC and CAC engines (it lists the service number, 7026424, which according to later parts books corresponds to tag number 7024025)<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4635-scaled.jpeg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"428\" src=\"https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4635-1024x428.jpeg\" alt=\"\" class=\"wp-image-5145\" srcset=\"https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4635-1024x428.jpeg 1024w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4635-300x125.jpeg 300w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4635-768x321.jpeg 768w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4635-1536x642.jpeg 1536w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4635-2048x856.jpeg 2048w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4635-150x63.jpeg 150w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">March 1, 1964 Parts Book explicitly identifies 7026424 service number as correct carburetor for ALL FC and CAC vehicles. 7026424 service number is the same as 7024025 tag number.<\/figcaption><\/figure>\n\n\n\n<p>7) 1967 Parts book contains a chart identifying the 3 different 1964 carburetors, cross-referencing tag and service numbers, and application. This chart also clearly states that 7024025 is for &#8220;Air Cond. and Truck&#8221;<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-3 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4628.jpeg\"><img loading=\"lazy\" decoding=\"async\" width=\"815\" height=\"1024\" data-id=\"5147\" src=\"https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4628-815x1024.jpeg\" alt=\"\" class=\"wp-image-5147\" srcset=\"https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4628-815x1024.jpeg 815w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4628-239x300.jpeg 239w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4628-768x965.jpeg 768w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4628-1222x1536.jpeg 1222w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4628-119x150.jpeg 119w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4628.jpeg 1290w\" sizes=\"auto, (max-width: 815px) 100vw, 815px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4629.jpeg\"><img loading=\"lazy\" decoding=\"async\" width=\"793\" height=\"1024\" data-id=\"5146\" src=\"https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4629-793x1024.jpeg\" alt=\"\" class=\"wp-image-5146\" srcset=\"https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4629-793x1024.jpeg 793w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4629-232x300.jpeg 232w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4629-768x991.jpeg 768w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4629-1190x1536.jpeg 1190w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4629-116x150.jpeg 116w, https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2023\/07\/IMG_4629.jpeg 1290w\" sizes=\"auto, (max-width: 793px) 100vw, 793px\" \/><\/a><\/figure>\n<\/figure>\n\n\n\n<p><br>&#8211; Per this chart we can identify two differences between the 7024024 (high performance) and 7024025 (CAC\/FC) carburetors:<br>&#8212; Air Horn Assembly (top of carb) &#8211; presumably increased venting and provision for attaching air cleaner)<br>&#8212; Venturi Cluster Assembly (7028709)<\/p>\n\n\n\n<p>From all of the above we are certain that early in the 1964 production year GM engineers concluded that using the dual air cleaners on the new 164 CID engine caused an issue with fuel calibration and bowl venting and therefore added the 7024025 carburetor for use on these engines (FC, CAC, early design oil bath) or otherwise recommended modification existing 7024023\/7024024 carburetors on dealer installed AC cars as noted in the TSB.  <\/p>\n\n\n\n<p>We also do not know exactly what changes were made to the Venturi Assembly on the 7024025 carburetor.  The exact changes in the Venturi are not documented in any GM literature but are described in Bob Helt&#8217;s 2006 carburetor book. It is stated in that book that he derived this information from measurements of numerous clusters made by Bob Ballew.<\/p>\n\n\n\n<p>The thrust of my current research is to attempt to determine at what point in time the 7024025 carburetor actually came into service. From the notes in the assembly manuals it seems the change occurred very early in the production year (9-12-63), but we do not know if any early production FCs or Factory AC cars may have been originally equipped with 7024023 or 7024024 carburetors and, if so, were perhaps later modified as per the TSB for dealer installed AC cars.<\/p>\n\n\n\n<p>Also, if we can positively identify a number of 7024025 carburetors as likely being truly original (i.e. not rebuilt), we can possibly open them up to inspect the covers and measure the Venturis to compare with Bob Helt&#8217;s table.<\/p>\n\n\n\n<p>So please &#8211; look for those original FC engines and tell me which carburetors you find!<\/p>\n\n\n\n<noscript class=\"ninja-forms-noscript-message\">\n\tNotice: JavaScript is required for this content.<\/noscript>\n<p>Sorry, you must login to enter survey data<\/p>\n<h2 class=\"cprp_section_title\">Here are some other related posts on this site<\/h2><div class=\"cprp_items list \"><ul><li><div class=\"cprp_data\"><div class=\"cprp_title\"><a href=\"https:\/\/stock.corvair.org\/wordpress\/2024\/03\/oil-bath-pre-cleaners\/\" title=\"Oil Bath Pre-Cleaners\">Oil Bath Pre-Cleaners<\/a><\/div><div class=\"cprp_percentage\">68<\/div><div class=\"cprp_excerpt\"><a href=\"https:\/\/stock.corvair.org\/wordpress\/2024\/03\/oil-bath-pre-cleaners\/\" title=\"Oil Bath Pre-Cleaners\"><img src=\"https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2011\/01\/Oil-Bath-Type-1-150x150.jpg\" class=\"cprp_thumbnail\" title=\"Oil Bath Pre-Cleaners\" alt=\"Oil Bath Pre-Cleaners\" \/><\/a><span class=\"cprp_excerpt_content\">RPO K47, Heavy Duty Oil Bath Air Cleaner, first became available at the start of the 1963 model year for FCs and on May 8, 1963 for all cars except those with AC or turbochargers. While it was never originally offered for any Corvair prior to 1963, including wagons and&hellip;<\/span><\/div><div class=\"cprp_tags\">Tags: oil, air, bath, ac, cars, assembly, fc, carburetors, articles, photos<\/div><\/div><\/li><li><div class=\"cprp_data\"><div class=\"cprp_title\"><a href=\"https:\/\/stock.corvair.org\/wordpress\/2014\/09\/1964-ember-red-monza-coupe-40927w176657-jim-brossard\/\" title=\"1964 Ember Red Monza Coupe 40927W176657 Jim Brossard\">1964 Ember Red Monza Coupe 40927W176657 Jim Brossard<\/a><\/div><div class=\"cprp_percentage\">49<\/div><div class=\"cprp_excerpt\"><a href=\"https:\/\/stock.corvair.org\/wordpress\/2014\/09\/1964-ember-red-monza-coupe-40927w176657-jim-brossard\/\" title=\"1964 Ember Red Monza Coupe 40927W176657 Jim Brossard\"><img src=\"https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2022\/02\/IMG_5903-150x150.jpg\" class=\"cprp_thumbnail\" title=\"1964 Ember Red Monza Coupe 40927W176657 Jim Brossard\" alt=\"1964 Ember Red Monza Coupe 40927W176657 Jim Brossard\" \/><\/a><span class=\"cprp_excerpt_content\">Media Photo AlbumVideo - Factory Exhaust SystemVideo - Tunnel area ASCE Inspection Summary Date Inspected: 07\/23\/2014Odometer 17495.2 original milesYear: 1964Model: MonzaBody Style: 2 door CoupeExterior Color: Ember RedInterior Color: Red and WhiteEngine: 110 HPTransmission: 4 speedRear Axle: 3.27Positraction: NoVIN: 40927W176657Build Date: 12DStyle: 64-0927Body Number: 36226Trim: 727Paint: 922-QACC: W2LP3C5V Inspected by:&hellip;<\/span><\/div><div class=\"cprp_tags\">Tags: engine, oil, articles, photos, survivor, cars<\/div><\/div><\/li><li><div class=\"cprp_data\"><div class=\"cprp_title\"><a href=\"https:\/\/stock.corvair.org\/wordpress\/2018\/08\/glenn-corvair-engine-restoration\/\" title=\"Glenn Corvair Engine Restoration\">Glenn Corvair Engine Restoration<\/a><\/div><div class=\"cprp_percentage\">41<\/div><div class=\"cprp_excerpt\"><span class=\"cprp_excerpt_content\">I acquired the original engine for the John Glenn Corvair with the purchase of the car back in 2001, but the engine was not installed in the car and it was not running.&nbsp; It sat on a cart in my garage for the past 17 years until I finally got&hellip;<\/span><\/div><div class=\"cprp_tags\">Tags: engine, articles, photos, cars, ac, early<\/div><\/div><\/li><li><div class=\"cprp_data\"><div class=\"cprp_title\"><a href=\"https:\/\/stock.corvair.org\/wordpress\/2022\/01\/john-glenns-corvair\/\" title=\"John Glenn&#039;s Corvair\">John Glenn's Corvair<\/a><\/div><div class=\"cprp_percentage\">41<\/div><div class=\"cprp_excerpt\"><a href=\"https:\/\/stock.corvair.org\/wordpress\/2022\/01\/john-glenns-corvair\/\" title=\"John Glenn&#039;s Corvair\"><img src=\"https:\/\/stock.corvair.org\/wordpress\/wp-content\/uploads\/2022\/01\/IMG_7829-150x150.jpeg\" class=\"cprp_thumbnail\" title=\"John Glenn&#039;s Corvair\" alt=\"John Glenn&#039;s Corvair\" \/><\/a><span class=\"cprp_excerpt_content\">Pre-restoration John Glenn's Corvair While this site was non-functional for the past few years, I have been posting about the restoration of John Glenn's Corvair on Facebook and The Corvair Center Forum. Until I get around to writing up a more formal accounting, I offer up this post with links&hellip;<\/span><\/div><div class=\"cprp_tags\">Tags: photos, articles, cars, ac, early<\/div><\/div><\/li><li><div class=\"cprp_data\"><div class=\"cprp_title\"><a href=\"https:\/\/stock.corvair.org\/wordpress\/2021\/01\/allen-bristows-1963-survivor\/\" title=\"1963 Monza Coupe 30927W144723\">1963 Monza Coupe 30927W144723<\/a><\/div><div class=\"cprp_percentage\">41<\/div><div class=\"cprp_excerpt\"><span class=\"cprp_excerpt_content\">Owned by Allen Bristow Click here to view the photo album Allen Bristow acquired this very nice 1963 Monza Coupe with Factory AC during 2020. It is a mostly all-original survivor with just under 40,000 miles and is in excellent condition. Although we were unable to have a formal Annual&hellip;<\/span><\/div><div class=\"cprp_tags\">Tags: ac, survivor, engine, air, photos, cars<\/div><\/div><\/li><li><div class=\"cprp_data\"><div class=\"cprp_title\"><a href=\"https:\/\/stock.corvair.org\/wordpress\/2017\/08\/1961-corphibian\/\" title=\"1961 Corphibian\">1961 Corphibian<\/a><\/div><div class=\"cprp_percentage\">40<\/div><div class=\"cprp_excerpt\"><span class=\"cprp_excerpt_content\">The one and only Corphibian This post contains links to media about the 1961 Corphibian - the only commercially produced amphibious Corvair. This vehicle is based on the Loadside Pickup. Click on any of the links below to go to that media: Articles and Photo Albums: Corphibian History - the&hellip;<\/span><\/div><div class=\"cprp_tags\">Tags: photos, articles, survivor, cars<\/div><\/div><\/li><li><div class=\"cprp_data\"><div class=\"cprp_title\"><a href=\"https:\/\/stock.corvair.org\/wordpress\/2017\/08\/asce-2017-report\/\" title=\"ASCE 2017 Report\">ASCE 2017 Report<\/a><\/div><div class=\"cprp_percentage\">39<\/div><div class=\"cprp_excerpt\"><span class=\"cprp_excerpt_content\">The 12th Annual Stock Corvair Event was held in Independence, MO, on July 1, 2017. Once again, we were thwarted in our efforts to evaluate all registered cars by poor communication and a last minute change in location, leaving us only able to evaluate 3 out of 7 cars registered.&hellip;<\/span><\/div><div class=\"cprp_tags\">Tags: cars, photos, early, oil, bath, air, survivor, engine<\/div><\/div><\/li><li><div class=\"cprp_data\"><div class=\"cprp_title\"><a href=\"https:\/\/stock.corvair.org\/wordpress\/2023\/06\/refurbishing-early-model-air-conditioning-distributor-control-assembly\/\" title=\"Refurbishing Early Model Air Conditioning Distributor\/Control Assembly\">Refurbishing Early Model Air Conditioning Distributor\/Control Assembly<\/a><\/div><div class=\"cprp_percentage\">38<\/div><div class=\"cprp_excerpt\"><span class=\"cprp_excerpt_content\">This article shows how I reconditioned the Air Distributor\/Control pod for my 1964 Air Conditioned Convertible (the Glenn Corvair). This is the part of the AC system that is mounted under the radio housings, containing the air vents and the control knobs. For simplicity, I'll refer to it as the&hellip;<\/span><\/div><div class=\"cprp_tags\">Tags: assembly, articles, photos, ac, cars<\/div><\/div><\/li><li><div class=\"cprp_data\"><div class=\"cprp_title\"><a href=\"https:\/\/stock.corvair.org\/wordpress\/2024\/11\/5771\/\" title=\"Looking for Survivor 1964 Corvairs with Original Standard Seat Belts\">Looking for Survivor 1964 Corvairs with Original Standard Seat Belts<\/a><\/div><div class=\"cprp_percentage\">38<\/div><div class=\"cprp_excerpt\"><span class=\"cprp_excerpt_content\">I am looking for any survivor (unrestored) 1964 cars with build dates between 01A and 07E (from January 1, 1964 through end of 64 model year) that were equipped with standard seat belts. These cars should have NO Group 5 codes on the Fisher Body tag ACC line. Preferably the&hellip;<\/span><\/div><div class=\"cprp_tags\">Tags: articles, survivor, cars<\/div><\/div><\/li><li><div class=\"cprp_data\"><div class=\"cprp_title\"><a href=\"https:\/\/stock.corvair.org\/wordpress\/2023\/07\/early-model-ac-thermostatic-switches\/\" title=\"Early Model AC Evaporator Temp Control Switches\">Early Model AC Evaporator Temp Control Switches<\/a><\/div><div class=\"cprp_percentage\">37<\/div><div class=\"cprp_excerpt\"><span class=\"cprp_excerpt_content\">1961-64 Corvairs with Air Conditioning have two switches, a blower switch on the left side that turns the system on\/off and sets the blower speed, and an evaporator temp control switch on the right side that sets the temperature and turns the compressor on\/off as needed. The temp control switch,&hellip;<\/span><\/div><div class=\"cprp_tags\">Tags: articles, photos, ac, early<\/div><\/div><\/li><li><div class=\"cprp_data\"><div class=\"cprp_title\"><a href=\"https:\/\/stock.corvair.org\/wordpress\/2022\/02\/corvair-photos-by-year\/\" title=\"Corvair Photos by Year\">Corvair Photos by Year<\/a><\/div><div class=\"cprp_percentage\">36<\/div><div class=\"cprp_excerpt\"><span class=\"cprp_excerpt_content\">All of the cars we have photographed, grouped by Model Year Early Models 1960 1960 500 4 dr Sedan 00569W000407 1960 700 Coupe 1960 700 Coupe 00727W206202 1960 700 4 dr Sedan 0079W101872 1960 Swiss 700 4 dr Sedan SS-609536 1961 1961 500 Coupe 10527K123835 1961 Canadian 700 4 dr&hellip;<\/span><\/div><div class=\"cprp_tags\">Tags: cars, photos, survivor<\/div><\/div><\/li><li><div class=\"cprp_data\"><div class=\"cprp_title\"><a href=\"https:\/\/stock.corvair.org\/wordpress\/2022\/07\/a6-compressor-model-sticker-replacement\/\" title=\"A6 Compressor Model Sticker Replacement\">A6 Compressor Model Sticker Replacement<\/a><\/div><div class=\"cprp_percentage\">34<\/div><div class=\"cprp_excerpt\"><span class=\"cprp_excerpt_content\">Late 1963-1965 Corvair A6 compressors used a foil sticker to display model number, charge, and serial number. &nbsp;While these stickers have been accurately reproduced for non-Corvair A6 models, they aren\u2019t correct for Corvair, due to the difference in Model number and charge. Here is a photo of the reproduced sticker:&hellip;<\/span><\/div><div class=\"cprp_tags\">Tags: articles, ac, cars<\/div><\/div><\/li><li><div class=\"cprp_data\"><div class=\"cprp_title\"><a href=\"https:\/\/stock.corvair.org\/wordpress\/2008\/08\/asce-2008-report\/\" title=\"ASCE 2008 Report\">ASCE 2008 Report<\/a><\/div><div class=\"cprp_percentage\">33<\/div><div class=\"cprp_excerpt\"><span class=\"cprp_excerpt_content\">The third Annual Stock Corvair Event (ASCE) was held on June 23, 2008 in Ventura, California. Five cars were present and were evaluated by members of the SCG and car owners. This page serves as an entry point to view the photos of this event. You can click here to&hellip;<\/span><\/div><div class=\"cprp_tags\">Tags: photos, cars, ac, early, fc, oil, bath, air<\/div><\/div><\/li><li><div class=\"cprp_data\"><div class=\"cprp_title\"><a href=\"https:\/\/stock.corvair.org\/wordpress\/2010\/08\/asce-2010-report\/\" title=\"ASCE 2010 Report\">ASCE 2010 Report<\/a><\/div><div class=\"cprp_percentage\">33<\/div><div class=\"cprp_excerpt\"><span class=\"cprp_excerpt_content\">The 4th Annual Stock Corvair Event was conducted in Cedar Rapids, IA, on 6\/24\/2010. Mark Corbin was the only SCG member present and he evaluated just one car: 1960 Cascade Green 700 4 door sedan 00769W101872, owned by Charles Morris<\/span><\/div><div class=\"cprp_tags\">Tags: photos, air, survivor, cars, engine<\/div><\/div><\/li><li><div class=\"cprp_data\"><div class=\"cprp_title\"><a href=\"https:\/\/stock.corvair.org\/wordpress\/2006\/08\/1961-fawn-beige-monza-4-door-10969w252406\/\" title=\"1961 Fawn Beige Monza 4 door 10969W252406\">1961 Fawn Beige Monza 4 door 10969W252406<\/a><\/div><div class=\"cprp_percentage\">33<\/div><div class=\"cprp_excerpt\"><span class=\"cprp_excerpt_content\">Owned by James Anderson Click here to view the photo album for this car ASCE Inspection Summary Date Inspected: 7\/27\/2006Odometer 74258.8 OriginalYear: 1961Model: MonzaBody Style: 4 door SedanExterior Color: Fawn BeigeInterior Color: FawnEngine: 98 hp 145Transmission: PowerglideRear Axle: 3.55VIN: 10969W252406Build Date: 06AStyle: 61-0969Body Number: 14717Trim: 855Paint: 920-4ACC: ADF Inspected by:&hellip;<\/span><\/div><div class=\"cprp_tags\">Tags: photos, survivor, cars<\/div><\/div><\/li><li><div class=\"cprp_data\"><div class=\"cprp_title\"><a href=\"https:\/\/stock.corvair.org\/wordpress\/2024\/06\/corvair-antennas\/\" title=\"Corvair Antennas\">Corvair Antennas<\/a><\/div><div class=\"cprp_percentage\">32<\/div><div class=\"cprp_excerpt\"><span class=\"cprp_excerpt_content\">In this article I will explore everything I\u2019ve learned about Corvair radio antennas. As with all research projects, this article is subject to revision as new information becomes available. Corvair radio antennas can be roughly divided into four major groupings, based on antenna mast and body styles. These groups are:&hellip;<\/span><\/div><div class=\"cprp_tags\">Tags: articles, photos, fc<\/div><\/div><\/li><li><div class=\"cprp_data\"><div class=\"cprp_title\"><a href=\"https:\/\/stock.corvair.org\/wordpress\/members-area\/scg-published-research\/by-bill-hubbell\/\" title=\"Articles by Bill Hubbell\">Articles by Bill Hubbell<\/a><\/div><div class=\"cprp_percentage\">31<\/div><div class=\"cprp_excerpt\"><span class=\"cprp_excerpt_content\">Oil Bath Pre-Cleaners Air Conditioning Fast Idle Solenoids Washer Bottle Brackets 1964 Corvair Running Changes Early Corvair Door Latches<\/span><\/div><div class=\"cprp_tags\">Tags: articles, oil, bath, air, early<\/div><\/div><\/li><\/ul><\/div><div style=\"clear:both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>I am trying to secure definitive information about the date when the 1964 7024025 carburetor was introduced. This carburetor was for use ONLY on 1964 FCs, Cars with Factory AC, and cars equipped with first design Oil bath Air Cleaner &#8211; essentially any 1964 factory engine equipped with dual air\u2026<\/p>\n<p class=\"continue-reading-button\"> <a class=\"continue-reading-link\" href=\"https:\/\/stock.corvair.org\/wordpress\/2023\/07\/the-7024025-carburetor\/\">Continue reading<i class=\"crycon-right-dir\"><\/i><\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_s2mail":"yes","footnotes":"","_links_to":"","_links_to_target":""},"categories":[3,8,11,114],"tags":[20,26,175,76,110],"ppma_author":[211],"class_list":["post-5137","post","type-post","status-publish","format-standard","hentry","category-articles","category-photos","category-research","category-survivor-cars","tag-20","tag-ac","tag-carburetors","tag-fc","tag-oil-bath"],"authors":[{"term_id":211,"user_id":4,"is_guest":0,"slug":"bhubbell","display_name":"Bill Hubbell","avatar_url":"https:\/\/secure.gravatar.com\/avatar\/b22ca0bc6c9f50a47ea4c5356d8ff95dfc2eeb0c293eb0135fc8421da812000d?s=96&d=mm&r=g","0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""}],"_links":{"self":[{"href":"https:\/\/stock.corvair.org\/wordpress\/wp-json\/wp\/v2\/posts\/5137","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/stock.corvair.org\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/stock.corvair.org\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/stock.corvair.org\/wordpress\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/stock.corvair.org\/wordpress\/wp-json\/wp\/v2\/comments?post=5137"}],"version-history":[{"count":11,"href":"https:\/\/stock.corvair.org\/wordpress\/wp-json\/wp\/v2\/posts\/5137\/revisions"}],"predecessor-version":[{"id":5815,"href":"https:\/\/stock.corvair.org\/wordpress\/wp-json\/wp\/v2\/posts\/5137\/revisions\/5815"}],"wp:attachment":[{"href":"https:\/\/stock.corvair.org\/wordpress\/wp-json\/wp\/v2\/media?parent=5137"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/stock.corvair.org\/wordpress\/wp-json\/wp\/v2\/categories?post=5137"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/stock.corvair.org\/wordpress\/wp-json\/wp\/v2\/tags?post=5137"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/stock.corvair.org\/wordpress\/wp-json\/wp\/v2\/ppma_author?post=5137"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}