| 39TudorFord | -- 03-04-2019 @ 8:07 AM |
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Hello all here on the forum. I am hoping to get some advise. My 1939 ford with the 221 ci. V8 runs pretty good. The issue I am having is when we drive the car at highway speed I am getting engine oil mixed in with my radiator coolant, but no coolant in crankcase. Just driving car at city street speeds this does not happen. I can not seam to find much in the net about this. I can find lots about coolant getting in the crankcase not not my problem. Please help.
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| 1934 Ford | -- 03-04-2019 @ 8:31 AM |
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Nice looking car. Sounds like more oil pressure than hot water pressure. Usually the other way around when steam form the hot radiator blows coolant in to the oil system. Usual culprit is the head gasket or freeze plug. If the oil is not milky too, I would suspect an internal block crack., but, I've never seen that much oil pressure in early Ford V8's. Pressure is the cause, but watch your oil too. I hope some one with more experience can help. Welcome to the V8 Forum. 1934 Ford's since 1972
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| carcrazy | -- 03-04-2019 @ 10:37 AM |
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How much oil is getting into your radiator? The bearings in the waterpumps of the earlier Flathead V-8's were lubricated by engine oil. If your oil pressure is too great you could see some traces of oil in the radiator. Has the engine ever been rebuilt? If it was and a later 80 psi pump was installed, this could be the source of the problem. The older V-8's work best with the original 50 psi oil pumps.
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| TomO | -- 03-05-2019 @ 2:42 PM |
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The bushings in your water pump could be worn, allowing the oil to get into the coolant. Having an 80# oil pump should not cause the problem. Tom
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| 34billct | -- 03-14-2019 @ 1:32 PM |
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It may be water pump lube the PO put in.
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