anti freeze in oil

cj gun · Jun 8, 2021

1948 ac mod c. af leakrd into oil, I replaced head gasket and head frost pugs, ran good no leaks. shut off motor no leaks without starting checked oil 2 days later no leaks. Ithoght everything is good until 2 days later without starting motor i checked oil and there was 2 gallons of antifreeze in oil, can somebody please give me an idea of where af is getting into the engine

old · Jun 8, 2021

Since it is a wet sleeve engine good chance one of if not more of the sleeve o-rings have gone bad. Easy way to check is pull the oil pan and have the cooling system full. Lay a piece of card board under it and watch for coolant on the cardboard.

derwen1959 · Jun 8, 2021

Have you run engine without coolant? As this will
ruin liner seals or liners could be corroded

mdm1 · Jun 9, 2021

Just had the same thing happen. Had a frost plug pop. They were new plugs also. I would take off the valve cover and take a look.

Aaron SEIA · Jun 9, 2021

To put that much antifreeze in the oil not running, it's almost guaranteed to be sleeve o-rings. The freeze plugs in the head are also a common issue rusting out, but wouldn't put that much in the pan.
AaronSEIA

cj gun · Jun 9, 2021

(quoted from post at 03:55:52 06/09/21) Just had the same thing happen. Had a frost plug pop. They were new plugs also. I would take off the valve cover and take a look thank you ill take a look.

cj gun · Jun 9, 2021

thanks i was sort of afraid of that,that makes sence

anti freeze in oil

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