455 front main seal

[taddpole]

What is the process for changing the front main seal? I was hoping you can get it out using some type of puller?

[taddpole]

What is the process for changing the front main seal? I was hoping you can get it out using some type of puller? I am hoping you don't have to pull then engine;)

[Schurkey]

Remove belts, remove crankshaft pulley(s) remove torsional damper bolt, heavy washer, and damper.

Pop seal out of front cover.

Inspect damper hub sealing surface for groove. If grooved, install repair sleeve or replace damper. This is a good time to clean the damper, paint a white stripe on the timing groove, and verify condition of the rubber bonding the hub to the inertia ring. "I" would install a timing tape or otherwise mark the damper for full advance, and at 90 degree intervals.

Clean crankshaft snout, verify key is in appropriate location, apply sealant to inside of damper hub to prevent oil seepage between crank snout and damper hub.

Lubricate seal lip (grease or oil, doesn't really matter), install into front cover EVENLY. Most seals have a coating to prevent seepage around OD, but some folks apply sealer before popping the seal into place.

Install damper, torque bolt and heavy washer to spec. Install pulley(s) and pulley shield, if used.

Install belts.




Depending on mileage of the engine, this is an excellent time to replace the timing chain and gears.

[taddpole]

Thanks for the info. It was pretty easy to replace. I am glad I bought a new harmonic balancer because the one I took off was really worn out. I haven't started it yet but hopefully it fixes my oil leak.