Fuel System

To see the image in a larger format, right click the image and select “view image”.

Some of the photos below have been collected from other individuals and sources.  I will work to replace the work of others with photos of my own parts as I fill in the collection.  If you would like photo credit, please let me know and I will gladly add it.

Part Number/Description Notes  Photo
 Tillotson Carburetor “M10A” Application: 1930 – 1935 American Austins

Spotter’s Note:  Tillotson M20A carburetors exists and are very similar looking, be sure to note the orientation of the inlet and the throttle/choke levers as the M20 is a mirrored unit which will not work although it may offer some interchangeable parts.

 Tillotson M10a outside

Tillotson M10a stamp

 Tillotson Carburetor “M10B” Application:  American Bantam Series 60 engines IMG_0343

IMG_0343 (2)

 Tillotson Carburetor “M10BX” Application:  American Bantam Series 63 engines  Tillotson M10bx stamp
 Tillotson Carburetor – “M20A”  Application:  Unknown, mirror image from Austin and Bantam units.  OLYMPUS DIGITAL CAMERA

OLYMPUS DIGITAL CAMERA

Photo:  CG

 Zenith Carburetor – 9321 This is a 65A1 Carb.

Application: 65 Series vehicles equipped with three main bearing engines.
Look for: round silver
tag containing numbers stamped in concentric rings.

The numbers on the tag are: 9321 A8919

Spotters notes:
-May have “Zenith made in USA” raised in a square on the side of the bowl or
“Zenith” raised
vertically down the
side of the bowl.
– This carb mounts with the inlet facing the front of the car so the throttle lever is on the opposite side as the Tillotson units.
 Zenith 9321

Zenith 9321 bowl bZenith 9321 disc

  Zenith Carburetor – 9622 Application:  Service Replacement for 9321 Carburetor

(According to June 1, 1962
Zenith Service Manual)
Look for: round silver
tag containing numbers stamped in concentric rings.
Spotter’s Notes:
– May have blank bowl sides but “Zenith Made In USA” is cast with
depressed letters into the
bottom of the bowl.
 Zenith 9321 bowl a
Tillotson Carb – YC-1B Application: Brennan Imp
Three main bearing engines (1944-1972)Note:  These carbs may have also been used on Toro Power Mowers and Tractors.  Little other information is known.
 Tillotson yc1b 2

Tillotson yc1b 3Tillotson yc1b

Tillotson Banjo Fuel Inlet Fitting

Part number: 02681

Application: Austin/Bantam engines with Tillotson Carburetor which no not have a Tillotson accessory fuel filter attached

Spotters Note:  Part number embossed on edge.

Note:  Many of these have been replaced with standard banjo fittings.

 Tillotson Banjo fitting 1

Tillotson Banjo fitting 2

Tillotson Accessory Fuel Filter Application: Austin/Bantam engines with Tillotson Carburetor

Spotter’s Note:  This unit has an integrally cast outlet which connects the filter to the carburetor.  Tillotson also made aftermarket filters which looked similar to the one pictured at right, but featured a flat boss with a threaded fitting exiting in line with the valve along the horizontal plane.

 Tillotson fuel filter

 

Photo:  LJ

 Zenith Fuel Filter

Part Numbers: (7004848) (2×2-G-1)

 Application:  Standard equipment on 65 series three main bearing engines and optional equipment on 1939 American Bantams equipped with Tillotson carbs.  Zenith Fuel Filter 1
 Intake Manifold Application:  All American Austins and Bantams

Spotter’s Note:  Often times these will be broken, you should still try to save them.  Also, the slotted screw in the center of the runner from the carb toward the engine is a vacuum port which should have a small metal tube exiting therefrom.

 Austin and Bantam Intake Manifold
 Intake Manifold  Application:  Brennan Imp (1944-1972)

Spotter’s Note:  All ports will line up with factory Austin and Bantam blocks and carbs, however the upper mounting flange has been deleted by the manufacturer.

  (photo needed)
 Intake Tube Application:  65 Series three main bearing engines.  This piece goes between the air cleaner and the carb.

Spotters Note:  No part numbers are cast onto this piece.

 65 series air inlet tube
 Intake Tube -Reproduction  Same as directly above.

Reproduced by Lynn James.

 65 series air inlet tube - Lynn James

Photo: LJ

Donaldson Simplex Air Cleaner Application:  Austin and Bantams equipped with Tillotson Carb

Note:  Top most photo illustrates an air cleaner from an Austin parts collection, it appears to have the decal present on the reproductions.  The embossed lettering on the bottom photo is from an ebay auction, it is unclear if originals had this detail.

 donaldson air cleaner orginalsimplex air cleaner 1

donaldson air cleaner orginal 2

donaldson air cleaner orginal 3

Donaldson Simplex Air Cleaner- Reproduction Same as directly above.

Reproduced by Colin Hughes

 donaldson air cleanerdonaldson air cleaner 2

Photo: LJ

 Air Cleaner Application:  65 Series Bantams with three main bearing engine

Spotter’s Note:  The details of the air cleaner base separate the correct unit from a popular AC unit which was used on 1930’s Fords, Chevrolets, and other cars.  Unlike the other air cleaners, Bantam units have a convex bottom rather than a flat or concave shape.  Additional note, there is another air cleaner which is identical to the Bantam unit except it does not have the threaded hole for attaching the housing to a bracket.

 65 series air cleaner

Photo: LJ

65 series air cleaner drawing65 series air cleaner drawing

Fuel Tank (Tank A)  Application:  American Austin

Spotter’s Note:

-Fuel sender is located closer to the filler neck than the other tank and is held in by 6 machine screws.

-When looking at the front of the tank (area with beading and filler neck) the fuel outlet is located on the lower left, but is NOT drilled through a mounting tab.

 Fuel tanks
 Fuel Tank (Tank B) Application:  American Bantam, before series 65 cars.Spotter’s Note:

-Fuel sender is located closer center of the tank and is held in by 5 machine screws.

– Bottom of tank measures about 15″ from face to rear.

-When looking at the front of the tank (area with beading and filler neck) the fuel outlet is located on the lower left, but IS drilled through a mounting tab.

 Fuel Tank (Tank C) Application:  American Bantam, before series 65 cars.

Spotter’s Note:

-Fuel sender is located closer center of the tank and is held in by 5 machine screws.

– Bottom of tank measures about 13.75″ from face to rear.  This is shorter than other Bantam tanks.

-When looking at the front of the tank (area with beading and filler neck) the fuel outlet is located on the lower left, but IS drilled through a mounting tab.

Fuel Gauge Sender Application:  American Austin

Spotter’s Note:  Hydrostatic sender, similar to Ford Model B gauge

  (photo needed)
Fuel Gauge Sender Application:  American Bantam

Spotter’s Note: Electric gauge, resistive, similar to  1934 Ford sender

  (photo needed)
 Fuel Tank Cap  Application – All

-Also used as Oil Caps on Series 65 engines

Spotter Note:  A single raised rivet appears on fuel caps

  (photo needed)
 Fuel Tank Cap – Aftermarket?  Application – All

Spotter Note:  A single raise blister with vent appears on fuel caps.

  (photo needed)
American Austin Fuel Line Most cars, original and restored appear to have metallic fuel lines.   (photo needed)
American Bantam Fuel Line Application:  1938-1940 American Bantam

Measure 15″ from end to end.

Spotter’s Note:  Original manufacturer not confirmed, however Weatherhead part 11069 appears to be the original piece.

Most restored cars appear to have replaced the rubberized line with a metallic unit.

Bantam Fuel LIne

Photo: GA

 Fuel Gauge For information, please see the section dedicated to Interior, Dashboard, or Gauges.
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