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bowtie4.gif (2065 bytes) 1931 Chevrolet - Specifications Page 4
Accessories
Heater
Trunk
Wind Wings

Axle Seals & Bearings
Rear
Front

Transmission
Bearing

Leaf Springs

General
Rear

Battery Box
Size

Last Updated:  08/04/11

Consumables

Fan Belt This belt is too long, but can be used if need be:
Dayton
836347, V-79, S-2380
Napa (Gates) 5L390

This one is correct but not available:
Napa (Gates)  5L385
(5/8" wide 38.5" long) (e)

Note:  An earlier posting here had 39" as the proper belt length.  While this will work on some cars, the correct length should be 38 1/2 inches.  As far as we know, no manufacturer has this available except as a "ribbed" belt, which is an incorrect style.

Overhaul

Freeze Plugs Requires two 1 inch "convex" freeze plugs (e)
Napa Part Number 219-1008 (.30 each)

Battery

Delco 6 volt, Negative-Ground, 13-plate, 90-ampere hour (k)
(Yes, Optima dry-cell is a great substitute.)
Specific Gravity The specific gravity of a fully charged battery as indicated by hydrometers should be between 1.275 and 1.300.  The specific gravity of a fully discharged battery will be approximately 1.150.  A reading of all cells at 1.225 or more indicates that the batter is okay.  (j)

Gas Cap

In order that the gasoline will flow properly to the carburetor, there is a small hole in the top of the filler cap on the tank, so that air can enter as the quantity of gasoline in the tank is decreased.  It is essential that this hole be kept open. (j)

Ignition Parts (Distributor)

The following parts are still available from Shucks Auto Stores as of September 2001.  Most are not kept in stock and require a 2 or 3 day advance order.
Niehoff Brand Part Number Price
Cap DR55 $19.95
Coil UN173 $34.79
Contacts DR1H $11.79
Condenser DR22 $2.99
Rotor DR46 $7.99

These parts are listed in one of their reference manuals as fittting most 1929-1940 Chevrolet cars.  Not many stores will take the time to search this information for you.

Starter Brushes

The following part is still available from Auto Stores as of September 2010.  Also, Vintage Suppliers, like The Filling Station also sell them.
Brand Part Number Price
Delco R37  

These were listed in one of their reference manuals as fitting most 1929-1940 Chevrolet cars.

Ignition Advance

In the Owners Manual it says that the "semi-automatic advance" activates at approximately 14 MPH.  What they are referring to is the mechanical (centrifugal) advance consisting of the two weights inside the distributor.

The actual advance that is "added" by these weights is as follows:

RPM Degrees Advance
350 0
900 11.5
1300 15.5

So if you set the engine to the "recommended" 18 degrees, then at full running speed (ie. >1300 RPM), the ignition will be operating on 18 + 15.5 = 33.5 degrees advance.

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