Ford 515

Mike Medlin · Apr 11, 2018

I have a 201 diesel that has anti freeze seeping out the rear of the engine between the head and block. No coolant in oil or oil in radiator. Seems to run good but has lots of blowby. No smoke out of exhaust as well. Suggestions? Thanks

Sean in PA · Apr 11, 2018

Wouldn't hurt to try tightening the head bolts for the leak. If that doesn't work then at least a new head gasket is needed, and possibly the block or head or both need to be re-trued if either or both are warped.

The blowby could just be stuck rings. You could try putting some Marvel Mystery Oil or ATF in each of the cylinders to let the rings soak for a couple of days which would be easy to do if you're taking the head off to replace the gasket anyway.

sotxbill · Apr 11, 2018

There are a couple of freeze plugs back there that are know to leak, so check those as well. One is very low and may require a split to get to... IIRC...

Ford 515

Mike Medlin

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Sean in PA

Well-known Member

sotxbill

Well-known Member

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