The Stovebolt Site Forums The Shop Area Engine Shop Where are the likely oil leak points of front of engine?

I have the original 235 in my 55.1. We rebuilt the engine 2 winters ago. I am getting an oil leak that seems to be in the front of the engine, low down. What are the likely sources of the leak. Thanks - Scott

Pan at the front main,cam chain drive cover to front of eng, and seal where crank goes threw cover.

And oil gally plug at front driver side by generator

I have seen small knock in or knock out plugs, like a small freeze plug, used to seal the oil galley at the front of the engine. These type of plugs are a possible source of a leak because they are not threaded plugs. These plugs will present some oil leakage directly above the front cross member. At the other end of the oil galley, they can also cause some oil leakage at inside the bell housing.

Joe

Mine was leaking around screws that fasten down the timing gear cover. You need to pull those screws out and seal the threads, I used teflon paste type, cured the problem.

Thanks T-ruck, jiMerit, and 6 cyl. Those all sound like likely suspects. It gives me a few good places to look. Thanks agin - Scott

has any body had problems with oil and water leaking out the clutch cover on a 235?

That same oil galley goes down the left side of the block from front to back and has another plug at the back. There could be some leakage of oil there, but if your getting oil and water, I'd say the head gasket may be leaking at the rear of the head and that oil and water could be running down the back of the block into the fly wheel cover.

Joe

FYI Jim Carter sells a sleeve to correct a leaking crankshaft front seal.