Problem rear engine seal - Ferrari Life
 
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post #1 of 7 Old 04-26-2010, 02:16 PM Thread Starter
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Problem rear engine seal

It looks like my 99 360 F1 has developed a rear main seal ? oil leak. It also looks as if it is getting worse.
How expensive a problem is this and is there a likelyhood of sudden catastrophic failure ?
I assume the engine has to come out , so if so what other work should be done then ? All service was done in Sept 09 inc. belts and clutch , about 7000 miles ago by a Ferrari dealer in CA. I plan on using Ferrari of Atlanta, about a 5 hour drive away.
All advice appreciated.
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post #2 of 7 Old 04-26-2010, 05:56 PM
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Tom

It may not be a rear main seal. It could be a leaking T/O bearing assembly.

Analyze for us the color/consistecy/ odor of any dripping oil.

Check fluid level in F1 resevoir

It still needs the tranny to be removed if the T/O bearing is leaking but might not be as costly as a R.M.S.
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post #3 of 7 Old 04-29-2010, 09:33 AM Thread Starter
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It doesn't appear to be F1 fluid. It is fresh oil When the guy changed the oil the other day he overfilled by at least 1/2 quart according to the dipstick. Could this be the problem? What happens in an overfill situation?
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post #4 of 7 Old 04-29-2010, 10:37 AM
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Oh yes that could be part of problem and you need to get that out asap!

Get a long turkey baster and remove oil filler cap; start sucking out oil.

That will also mess up the MAF's in the intakes!.

Never have someone inexperienced w/your car do anything on it!

Oil is checked by first adding a total of 9 quarts at change, start engine and let run until fully warmed, remove filler cover, clean, reinsert, and add the remainer oil slowly until you are w/in the lines max/min all while engine is still running.

The system should not take more than 10 quarts total!
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post #5 of 7 Old 04-30-2010, 12:55 PM Thread Starter
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Thank you very much again for your help. I really admire your willingness to share your hard earned experience.
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post #6 of 7 Old 04-30-2010, 03:37 PM
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Never a problem but I must admit ovefilling oil is one thing I have never done!

The air intakes and MAF's may need to be cleaned as well.

Get oil out first and let's see what happens from then.
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post #7 of 7 Old 05-09-2010, 04:51 PM
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An overfill can sometimes pop a seal, it can also create too much pressure in the crankcase and fill the breather system with some oil, or it can blow out the piston rings in extreme situations. To replace the rear main seal they'll just need to remove the transmission and then the clutch/flywheel, the engine should stay in the car. 'd be surprised if they ask for much more than 20hrs of labor and the seal...unless the clutch is ready for replacement.
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