Having problems with your Ford F-250 ?

Is it worth it to fix a 99 F250 SD that has a rear main seal blown on the engine?

\015 Leaking oil all over my tranny, and burning oil like crazy. We believe it may be the rear main seal that blew and also a couple bearings. Need to know if it is worth it to fix it or is it a waste of time and money??\015 Posted / edited by AnonymousUser on : 26-10-2020

Answers :

Until the engine is sealed you will not know how much oil is burned. Price the parts. Difference too in whether its a 4x4 or easy access 2 wheel drive.

Check rear seal type to see if it can be changed by pulling trans and flywheel. If stick shift, probably good idea to replace clutch disc to verify not oil soaked. If automatic, oil is no consequence.

Kind of matters how much is wrong. With trans out, some rear engine seals can be replaced without removing oil pan. But if bearings are bad, on 2 wheel drive you may be able to squeeze off oil pan and check bottom of bearings.

You can do poor man's bearing job with plastic-gage. Rod bearings can probable be switched 100%. Main bearings lower cap can be serviced with upper 1/2 left in place. Not ideal, but can save from pulling motor.

Value depends on whether your Labor is free. You have a 14 Year ol truck. Depends on what you already replaced to maintain it or what else it will need. You could need rings after working on the bottom end even with a poor man's bearing job. Plastic Gage can tell you the size you need for each bearing. Then keep track and only buy individual sizes.

If you could find a wrecked truck with a good engine, places like carparts.com have a good multilist. Rule of thumb is different for each person. I would look hard at spending 1/2 of what truck is worth to fix it, knowing other things are wrong.
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