It’s an easy job…

After removing the wheel, there’s 2 – 9/16 bolts that hold the drum on.

Once the drum is removed, there are 4 – 9/16 nuts holding the axle in. After you remove those nuts the axle will slide right out. You should not need a puller as the axle should come out easily…

I have a regular seal puller, but I ended up just using a screw driver to remove the old seal. It come out fairly easily. I cleaned up the housing the best I could before I installed the new seal.

The new seal…

I used my slide hammer bar and a screw on tap and a hammer to peck the new seal in.

Took a total of about 30 minutes and I was done.

Tomorrow I plan to replace all of the shoes since they’ve been on there for about 5 years now and it’s getting tougher to stop… plus the left rear shoes are saturated with gear oil now.

THE 1949 PONTIAC 4 DOOR DELUXE CHIEFTAIN SERIES 27

THE 1950 PONTIAC 4 DOOR DELUXE CHIEFTAIN SERIES 27

THE 1951 PONTIAC 4 DOOR DELUXE CHIEFTAIN SERIES 27

THE 1952 PONTIAC 4 DOOR DELUXE CHIEFTAIN SERIES 25 OR 27

This manual has part numbers, pictures, diagrams, group numbers, etc… that date from the 1930’s through 1956.

I plan to make tag each photo eventually to make it searchable, but for the time being, you’ll have to use the image browser below to look through the manual.

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Air is driven into the opening of the oil filler pipe cap by the fan draft and, after being cleaned by screening through the wire gauze in the cap, passes down the filler pipe, circulates through the crankcase and leaves by the outlet pipe connecting to the valve compartment rear cover plate. When the car is in motion, movement of the air stream past the end of the outlet pipe creates a partial vacuum, thus aiding in bringing air into the crankcase through the filler pipe cap. The oil filler cap (and, therefore, the pipe itself) must be correctly positioned with respect to the engine.

When a heavy duty oil bath air cleaner and heavy duty filler cap are installed on a car, a special crankcase ventilating system outlet pipe having a metal gauze filtering element is also installed. This prevents the excessively dust-laden air encountered in heavy dust areas from entering the crankcase through the outlet pipe when the engine is not running.

These may not be all of the accessories available, but these are some that I know were available and are listed in the Original Shop manual or the Pontiac 1952 Master Parts Catalog.

- Radio
- Mirrors
- Fog Lamps
- Fender Skirts
- Trouble Light
- Back-Up Lamps
- Electric Clock
- Electric Antenna
- Rear seat Speaker
- Windshield Washer
- Handicap Controls
- Direction Signal’s
- Oil Bath Air Cleaner
- Traffic Light Viewer
- Compensating Compass
- Rear Windshield Wiper
- Locking Fuel Tank Door
- Outside Windshield Visor
- Safety Lights (Spotlights)
- Underseat Heater and Defroster
- Automatic Lamp Control (Autronic Eye)
- Bumper guards, Grille Guard, Wing-tips.

If anyone knows of any other options that were available that I didn’t list, please send me an email and let me know what it is and I’ll update the list. Or you can just post it as a comment and I’ll add it to the list.

The gear type oil pump used on both six and eight cylinder engines is of two-piece construction. It is externally mounted on the right side of the engine below the camshaft and is driven from the camshaft helical gears. While it is externally mounted, it is self-priming if the gears have been dipped in oil when installed.

The oil pump supplies full pressure lubrication to all bearings, including camshaft, connecting rods, camshaft bearings, piston pins, and timing chain. Oil thrown from the crank pins lubricates the cylinder walls, camshaft cams and valve lifters, pistons and distributor drive gears.

On 1953-1954 6 cylinder models an additional oil hole in the connecting rod directs a stream of oil onto the cylinder wall. This is required since the aluminum skirt to drain dry when the engine is not running. The valve spring chamber is open to the crankcase permitting oil vapor circulation around valve stems and lifters. On 1953-1954 6 cylinder engines, valve spring chamber floor to eliminate excessive oil splash on to the valves. Oil pressure is automatically regulated by a spring loaded relief valve in the pump cover and is not adjustable. With warm oil, pressure should be 35 to 45 lbs. at driving speeds. If pressure varies, check for external leaks, worn pump, or defective oil gauge. Do not try to adjust at pressure relief valve.

The oil pump intake pipe is connected to an oil cleaner installed in the crankcase. The Pontiac oil cleaner has the following desirable features:

1. It is connected into the lubrication system so that all the oil going to the pump for delivery to various parts of the engine is first passed through the cleaner.

2. Particles that are harmful to the bearings are very efficiently removed.

3. It has no element to plug up and, therefore, maintains its efficiency for the life of the engine.

4. It is built-in so there is no possibility of external tube leakage with resultant loss of oil.

The cleaner consists of a settling chamber concentric with the oil inlet tube. When oil reaches the top of the inlet tube, its direction is changed so that it flows down the outside of the inlet tube until it strikes a flat baffle and its direction is sharply reversed. At this point, dirt particles which are heavier than oil are thrown out of the oil stream into the settling chamber where they gradually settle or precipitate until they rest on the bottom of the basin. Since oil below the flat baffle is not disturbed by the flow of oil above the baffle, the dirt does not again enter the oil stream.

The design of the cleaner provides for controlled oil flow through the unit thereby giving it cleaning efficiency. Under no circumstances should any of the cleaner parts be bent or altered as this may impair its efficiency.

The Pontiac oil cleaner should not be expected to maintain the color of the oil as it appeared when placed in the crankcase. Mere discoloration of the oil has been shown to be non-abrasive to bearings and other moving parts and in the case of oils containing detergents and dispersants show that the oil is performing part of its purpose in keeping carbonaceous matter in suspension in the oil rather than allowing it to form heavy carbon, lacquer, and sludge deposits on various engine parts.

NOTE: EXTERNAL OIL CLEANERS – External type oil filters or cleaners are not necessary or desirable on Pontiac cars and no provision has been made for their installation.

The serial number is composed of:

1st: A letter indicating the factory of origin. (Shown in chart)

2nd: A figure indicating the number of cylinders, six or eight. (6-Six Cylinder;
8-Eight Cylinder)

3rd: Two letters indicating first the year of manufacture and the transmission
used. (Shown in chart)

4th: The sequence in which your car was built starting with 1001

Now for a complete example, if your cars serial number
is W8WH14479 the decode would be; W-Wilmington, 8-Straight Eight, W-1952,
H-Hydramatic, 14479-13,478th car built at the Wilmington plant.

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