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September 29th, 2008

Please pardon our dust while we improve the website over the next few days.  If you need anything please feel free to call 616-301-2888 or email Mike.  Thank you!

Q & A: MGB Rear Seal

Friday March 13th, 2009
Q & A, MGA, MGB, MGC, MG T-Type, Midget
Got a quick question. I am now rebuilding a '68 MGB whose engine had been rebuilt several years ago and has good compression. It leaks oil from the rear of the engine - leaves a spot about 5" in diameter each time I park it after driving. Sounds like a rear main seal. But here's what's strange. I put the car up on ramps, had it idling while I lay underneath, and watched for oil dripping and never saw anything! Waited about 10 minutes with engine idling. So, appears not to leak while running but only after shutdown.

Any ideas? Like to avoid removing the engine if not required.
If the engine is leaking from the rear seal, it is doing so for one of two reasons: 1) the engine is pressurizing and oil is blowing out wherever it can (including the rear seal); or 2) the seal and/or crank is faulty. If 1), then the engine won... read more