oil Return Line

D

Dan Mock

Junior Member
Has Anyone Out There Ever Changed The Smaller Oil Return For The Larger One Like On 30-31 Engines On A 1928 Motor If So Is It Worth It And How Difficult Is It To do.
 
Dan Mock said:
Has Anyone Out There Ever Changed The Smaller Oil Return For The Larger One Like On 30-31 Engines On A 1928 Motor If So Is It Worth It And How Difficult Is It To do.
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I have changed a few. It is tricky since the cast is pretty thin and brittle. It cracks easily and you can ruin a cap in short order. If you are doing a forged cap it is different and the steel will hold up better.
 
My 1928 doesn't leak any oil out the rear, so there is really no need to go with the later larger rear main drain tube. If you have too much oil dripping then the rear main needs to be tightened, or some other problem need to be repaired.
 
OK! My error. I did not see where he was reffering to the return line on the rear main bearing. Some people might take the word "larger", when they actally ment to say longer. Easy job to do when properly set up on a milling machine for surdyness and proper angle.
 
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