Maverick and Comet Repair

Engine Repair

Rear Crankshaft Oil Seal Removal and Installation
NOTE: The rear oil seal installed in these engines is a rubber type seal.

1. Remove the oil pan, and, if required, the oil pump.
2. Loosen all main bearing caps allowing the crankshaft to lower slightly.
   NOTE: The crankshaft should not be allowed to drop more than 1/32 in.
3. Remove the rear main bearing cap and remove the seal from the cap and block.
4. Carefully clean the seal grooves in the cap and block with solvent.
5. Soak the new seal halves in clean engine oil.
6. Install the upper half of the seal in the block with the undercut side of the seal toward the front of the engine. Slide the seal around the crankshaft journal until 3/8 in. protrudes beyond the base of the block.
7. Repeat above procedure on lower seal, allowing an equal length of the seal to protrude beyond the opposite end of the bearing cap.
8. Install rear bearing cap and torque all main bearings to specifications. Apply sealer only to the rear of the seals.
9. Dip the bearing cap side seals in oil, then immediately install them. Do not use any sealer on the side seals. Tap the seals into place and do not clip the protruding ends.
10. Install the oil pump and pan. Fill the crankcase with oil, start engine check for leaks.