Over the years, Marvel-Scheblers's predecessors, Volare Carburetors LLC, Precision Airmotive Corporation, Facet Aerospace Products Company, Borg-Warner and Marvel-Schebler Carburetor Company, have issued service bulletins, service letters, and other service information in a variety of formats. In addition, engine and airframe manufacturers have issued service publications, bulletins, letters etc. of their own relative to carburetors. Further, the Federal Aviation Administration has issued various Alerts and Airworthiness Directives.

Marvel-Schebler® issues service information in the form of "Service Bulletins". The generic term Service Bulletin, is used by Marvel-Schebler® regardless of the specific content of the bulletin.

This section contains data relative to the carburetors written by Marvel-Schebler® and its predecessors. It does not contain copies of FAA information, including Airworthiness Directives nor does it contain engine and/or airframe service information (except, possibly, incidentally or by reference).

This section contains data relative to the carburetors written by Marvel-Schebler® and its predecessors. It does not contain copies of FAA information, including Airworthiness Directives nor does it contain engine and/or airframe service information (except, possibly, incidentally or by reference). IT IS THE ABSOLUTE REPONSIBILITY OF THE SERVICE AGENCY WORKING ON A CARBURETOR AND THE ABSOLUTE RESPONSIBILITY OF THE OWNER/OPERATOR OF AN AIRCRAFT EQUIPPED WITH A CARBURETOR TO IDENTIFY AND COMPLY WITH ALL PUBLISHED, APPLICABLE SERVICE INFORMATION – REGARDLESS OF WHEHER OR NOT IT IS CONTAINED IN THIS SECTION OF THE MANUAL. IN OTHER WORDS, THE SERVICE AGENCY/OPERATOR IS RESPONSIBLE FOR RESEARCHING ENGINE AND AIRFRAME MANUFACTURER'S DATA, IF ANY, AND FAA AIRWORTHINESS DIRECTIVES AND, IF THEY ARE APPLICABLE, COMPLYING WITH THEM.

MARVEL-SCHEBLER SERVICE BULLETINS
SB-22 New Fuel Nozzle
SB-21 MARVEL-SCHEBLER®AIRCRAFT CARBURETORS
SB-20 Use of Incompatible Clip and Float Can Affect Float Operation
SB-19 Rev A Safety Alert - MSA Carburetor Maintenance Manual/Data Use
SB-18 Rev A Loose Mixture Sleeves
SB-17 Body To Bowl Fuel Leaks
SB-16 Data Tags
SB-15 Throttle Plate Screw Security
SB-14 Rev A Part 178-47 (Float Bracket) for MSA Updraft Model Carburetors.
SB-13 Accelerator Pump Plunger
SB-12 Mixture Control Stop Repair – HA-6™ Type Carburetor.
(This bulletin is in development and not published at this time.)
SB-11 Rev A  Unapproved Repair Practice
SB-10 Rev B Unauthorized Thread Sealant
SB-9 Rev A MA-4-5, MA-5™ & MA-6™ Series Accelerator Pump Lever Assemblies
SB-8 Rev B MA-4-5™, MA-5™ & MA-6™ Series Carburetors Pump Discharge Valve
SB-7 Rev A Mixture Control Stop Repair – HA-6™ Type Carburetors
SB-6 Rev A Mixture Control Stop Wear – HA-6™ Type Carburetors
SB-5 Rev B Superseded Service Bulletin MSA-13
SB-4 Rev B Bowl Clearance MA- Series Carburetors
SB-3 Rev A HA-6™ Accelerator Pump Plunger
SB-2 Rev B Required Replacement of Foam and Hollow Floats
SB-1 Rev A Use of Unauthorized Parts in Volare Float Carburetors
PRECISION BULLETINS, LETTERS, ETC.
MSA-14 Carburetor Throttle Body to Bowl Screw Inspection
MSA-13 Replacement of Carburetor Floats with new Foam Floats
MSA-12 Complete Revision of Carburetor Maintenance Manual
MSA-11 Australian AV-Gas Contamination
MSA-10 Casting Flaw in MA-4-5™ Throttle Bodies
MSA-9 Carburetor Nozzle Replacement
MSA-8 Carburetor Nozzle Replacement
MSA-7 Carburetor Nozzle Replacement
MSA-6 Improved retaining method for Mixture Control
MSA-5 Use of Unauthorized Parts in Precision Airmotive Float Carburetors
MSA-4 Consolidated fuel systems Service Bulletin CF-1-92, Revision 1, Dated 7/06/92 and airworthiness directive 92-15-16
MSA-3 Overhaul periods for float carburetors
MSA-2 One piece primary and main venturi
MSA-1 Replaced by MSA-13 (1/30/08) Assemblies on early model HA-6™ Carburetors
SIL MS-17 New Pump Discharge Check Valve & Spring
SIL MS-16 Availability of Alternate Pitot Tube (P/N 154-131-1) for HA-6™ Carburetor
SIL MS-15 Rev 1 New Float for Large MA Carburetors
SIL MS-14 New Float for HA-6™ Carburetors
SIL MS-13 Rev 1 New Accelerator Pump Discharge Check Valve Assembly & the Removal of Throttle Shaft O-Rings and Retainers
SIL MS-12 Poor Idle Cut-Off or Fuel Leakage After Shutdown
SIL MS-11 Rev 1 New Float for Small MA Carburetors
SIL MS-10 Rev 1 New Idle Tube Assembly and Economizer Setting for Model MA-4-5™ Carburetors, Part Numbers 10-5193, 10-5288, and 10-6102
SIL MS-9 New Idle Tube Assembly for Model MA-4-5™ Carburetors, Part Numbers 10-3878 and 10-6054
SIL MS-8 New Pump Plunger Assembly for Model MA-4SPA" Carburetors
SIL MS-7 New Throttle Body to Bowl Gasket for Model HA-6™ Carburetors
SIL MS-6 New Throttle Body to Bowl Screws for Small MA Series Carburetors
SIL MS-5 Torque Specifications for MA Carburetor Drain Plug
SIL MS-4 Rev 1 Introduction of Advanced Polymer Floats for MA Series Updraft Carbs
SIL MS-3 Rev 1 Conversion Information for 10-6030-1 Carburetors
SIL MS-2 Rev 1 Conversion Information for 10-6035-11 Carburetors
SIL MS-1 New Lubricant for HA-6™ Pump Linkage Rods
SIL PAC-1 Rev 6 Warranty Repair of Precision Airmotive RSA Fuel Injection Systems and MSA Float Carburetors
SIL No. 11-01-94 Introduction of Advanced Polymer Floats for HA-6™ Model Carburetors
SIL No. 10-21-92 Use of Unauthorized Parts in Precision Airmotive Float Carburetors
SIL No. 03-06-92 Throttle Shaft Repair Kits
SIL No. 02-25-92 Carburetor Kit Parts List
SIL No. 10-15-90 Availability of Repair Parts for Facet Aerospace / Marvel-Schebler® Carburetors
HISTORICAL SERVICE BULLETINS
A1-69 Required Inspection of the Drain Plugs for Excessive Thread Lubricant
A1-71 Improved Method of Securing the Cam Lever
A1-76 Carburetor Cleaning
A1-78 Improved retaining method for mixture control assembly on Model HA carburetors with rotary mixture control as illustrated
A1-79 HA-6™ Aircraft Carburetor Part No. A10-5206-1
A1-81 Model HA Carburetor Fload Shaft and Bracket Wear
A1-82 Drain Plugs, Model HA Carburetors
A1-87 Carburetor Return and Inspection
A1-88 Possible Loose 62-226 Pins
A2-65 Carburetor Replacement on the Lycoming 0-540-A1A Engines
A2-66 Removal of the Throttle Opening Spring from A10-3965-12, A10-4115-1 and !10-4439 Carburetors
A2-78 Improved Method of Sealing Pump and Economizer Rods to Reduce Throttle Friction on Model HA Series Carburetors
A2-79 Model HA, Part #A10-5243 Used on Lycoming Engine Model 0-540 L3C5D used in Cessna Aircraft TR182
A5-67 Pump Inlet Check Valve Redesign
   
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