V6 oil leak between engine and gearbox - Alfa Romeo Forum
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V6 oil leak between engine and gearbox

Have terrible oil leak on my 2.5V6, somewhere between gearbox and engine. Crank oil sealer changed, but absolutely no results, and leak becomes bigger. Although have some experience with TS engines, i'm not to familiar with V6's internal structure. Heard that there was 2 "hole spots"(don't know the exact word), between or around last main crank bearing, and engine bay(gearbox side), and that's possible place for leak. Solution with some thin rubber sticks putted in.
SOmebody with more V6 engine experience?
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Hi my may be a million miles away but is there crankshaft end float causing seal failure.
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Quote:
Originally Posted by seymour beaver View Post
Hi my may be a million miles away but is there crankshaft end float causing seal failure.
No for sure. I've checked that
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It is very easy to damage the seal putting it on. Did it on my t-spark a few years back and had to pul it all out again to replace the brand new seal with a brand new seal. Lube the oil seal and be super careful ensuring it lines up. I would imagine its just as delicate on the V6
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Yeah i know that, but i need info about the other possibility with this so called "2 holes".....
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hi,

photo of rear main cap and rear main seal for V6 in a 24v 916 GTV. There is a hole running from bottom of main cap up to the centreline of the crank. It terminates in a small 3mm diameter hole which runs from the outside face of the block.

The hole is fully filled with a rubber gasket sealer. This may lose adhesion with the aluminium block or main cap, allowing oil to seep.

I could not tell whether it was the rear main seal or the rubber sealant which was leaking on my car - changed both.



Cheers.
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(Post Link) post #7 of 7 Old 29-04-10 Thread Starter
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Can this be fixed only when removing the sump, or bearing must be also removed?
Many thanks, must helpful by now.
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