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DataBases updated: Mar 6th, 2026
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Installation Instructions
NameRevisionLangSubjectDate
en MS80-430 Carburetor Float Kit - For: Bing Constant Depression Carburetors5/19/2020
PMA Supplements
NameRevisionLangSubjectDate
en PMA PQ4020CE12/7/2016
en PMA PQ4020CE12/12/2016
en PMA PQ4020CE12/20/2016
en PMA PQ4020CE12/30/2016
Service Bulletins
NameRevisionLangSubjectDate
en Improved Method of Securing the Cam Lever11/15/1971
en Field Conversion of Model MA-4-5, Part #A10-4164 into Part #A10-4164-11/4/1960
en Proper Float Drop on All Model MA-4-5, MA-4-5AA and MA-6 Series Carbureters5/16/1960
en Model MA 4-5AA Automatic Altitude Bellows Assembly6/1/1959
en New Serial Numbering System for All Models of Aircraft Carbureters6/29/1960
en Updating Aircraft Carbureters with Long-Lok Features to Eliminate the Time and Expense of Safetying6/27/1960
B en Unauthorized Thread Sealant8/12/2010
rev en Marvel-Schebler Aircraft Carbureters are Now Available for... Continental A-65, A-75, C-90, 0-200A5/31/1963
en Long-Lok Parts6/27/1960
en Aircraft Service Tools - Prices12/1/1959
en Identifying Long-Lok Float Valve and Seat10/3/1960
en Installing and Setting Float #A30-629 in MA-4-5 Series Carbureters9/9/1959
en Cotter Pin Safety Added to Pump Link10/3/1960
en Servicing the Automatic Altitude Models MA-4-5AA and MA-6AA Carbureters in the Field10/3/1960
en Throttle Plate Screw Security8/12/2010
en Updating Aircraft Carbureters11/3/1960
en Data Tags8/12/2010
en "Factory Standards"11/8/1960
en Body to Bowl Fuel Leaks8/12/2010
en Bulletin #13-60 "Servicing Automatic Altitude Carbureters in the Field"11/10/1960
en Emergency Volare Carburetors: Loose Mixture Sleeves - Before Further Flight - Avoid Serious Risk of Injury or Death10/14/2010
A en Emergency Loose Mixture Sleeves - Before Further Flight - Avoid Serious Risk of Injury or Death3/15/2011
en Seals on Model MA-4-S, MA-6 and AA Series Carburetors12/22/1960
en Safety Alert - MSA Carburetor - Maintenance Manual/Data Use8/29/2011
A en Safety Alert - MSA Carburetor - Maintenance Manual/Data Use5/15/2013
B en Safety Alert - MSA Carburetor - Maintenance Manual/Data Use3/29/2016
en Use of Incompatible Clip and Float Can Affect Float Operation8/31/2011
en Marvel-Schebler Aircraft Carburetors10/5/2011
en New Fuel Nozzle - Marvel-Schebler® Aircraft Carburetors9/16/2013
en Accelerator Pump Discharge Check Valve for MA-3® and MA-4® Series Carburetors11/8/2017
en MA-4-5® Series Carburetors Equipped with Idle Mixture Screw Mounting Plate7/25/2018
en Throttle Shaft for MA-5® Carburetors3/16/2018
O en Throttle Shaft for MA-5® Carburetors4/20/2021
en Accelerator Pump Discharge Check Valve for MA-4-5®, MA-4-5AA®, MA-5® and MA-6AA® Series Carburetors10/16/2018
O en Accelerator Pump Discharge Check Valve for MA-4-5®, MA-4-5AA®, MA-5® and MA-6AA® Series Carburetors4/20/2021
en MA-3® and MA-4® Carburetors Equipped with Accelerator Pumps2/1/2021
A en MA-3® and MA-4® Carburetors Equipped with Accelerator Pumps5/24/2021
en MA-3® Series Carburetors Equipped with Accelerator Pumps, MA-4SPA® Carburetors and Multiplex Versions of MA-4-5® Carburetors9/22/2021
en Part #AI6-A31 Body to Bowl Gasket for All MA-4-5, 6 and AA Models2/20/1961
en Part #10-3339 - No Longer Available2/19/1962
en New Float Valve Assembly A233-606 (Replaces A233-580)1/18/1963
en Positive Retraction Float Valve and Seat Assembly For Models MA-3A, MA-3SPA and MA-4SPA7/27/1964
en AD and Revision Amendment Specify the Use of our Rubber Floats and Long-Loc Safety Features and Positive Retraction Float Valve3/2/1966
en Required Inspection of the Drain Plugs for Excessive Thread Lubricant11/17/1969
Amend en Required Inspection of the Drain Plugs for Excessive Thread Lubricant11/21/1969
en Improved Method of Securing the Cam Lever11/15/1971
en Updated Parts Lists and Exploded Views2/15/1973
en Carburetor Cleaning5/26/1976
en Improved Retaining Method for Mixture Control Assembly on Model HA Carburetors with Rotary Mixture Control8/31/1978
en HA-6 Aircraft Carburetor Part No. A10-5206-11/31/1979
en Model HA Carburetor Float Shaft and Bracket Wear9/20/1981
en Drain Plugs. Model HA Carburetors6/30/1982
en Field Conversion of Model MA-4-5, Part #A10-4025-11 into Part #A10-4025-12
en New Float Valve & Seat - A233-6053/15/1962
en Economizer Settings1/24/1963
en Aircraft Condensed Catalog Form # MS-371, November, 196412/23/1964
en Carburetor Replacement on the Lycoming O-540-A1A Engines9/2/1965
en Removal of the Throttle Opening Spring from A10-3965-12, A10-4115-1 and A10-4439 Carburetors3/16/1966
en Improved Method of Sealing Pump and Economizer Rods to Reduce Throttle Friction on Model HA Series Carburetors9/30/1978
en Possible Carburetor Contamination3/31/1979
en Float Valve and Seat Assemblies for Marvel-Schebler Aircraft Carburetors5/24/1961
en New Parts Lists and Price Correction3/22/1962
en Modifying the 0-360 Lycoming Carbureter Part #A10-3878 into A10-3878-M3/12/1963
en Converting Part #A10-4401 into Part #A10-4401-16/23/1961
en Float Bracket Mounting - All Models4/2/1962
en Improved Venturii for All Model MA-4-5 Carburetors10/3/1963
en Model MA 4-5AA Automatic Altitude Bellows Assembly10/9/1961
en Aircraft Service Tools - M-3 and M-74/4/1962
en Safety Wire Feature Added to Bowl to Body Screws
en Pump Inlet Check Valve Redesign12/18/1967
en Change to Solid Rubber Float on Models MA-3, MA-3SPA and MA-4SPA10/25/1961
en Aircraft Service Tools - Prices4/9/1962
en New Float Valve with Mechanical Attachment to Float
en Changes to the Overhaul Section in the Catalog and the Price List11/24/1961
en Float Bracket Mounting Screw Holes4/16/1962
en Precautionary Procedure to be used when Installing Viton-Tipped Float Valve Assemblies - All Models4/24/1962
en Aircraft Carbureter Overhaul Frequency6/14/1962
en Improved Installation of Long Lok Type Screws6/14/1962
en Field Modification of A10-3878 Aircraft Carbureter into A10-3878-M as Applied to Mooney Aircraft Only7/2/1962
en Improved Seal for Manual Mixture Control11/7/1962
en Bing Constant Depression Carburetors5/19/2020
Miscellaneous
NameRevisionLangSubjectDate
en MSA Crburetor Replacement Parts Application & Cross Reference Chart - MSA Carburetor Repair Kit Cross Reference