1979 Thunderbird with 351 Windson engine still leaking oil after front and rear main seal replaced
My friend has a 1979 Thunderbird with a 351 windsor engine. He has replaced thr front and rear main seal after driving the car it has leaked oil all over the starter, where is it coming from?
valve cover gasket.
like other post valvecover gasket or intake gasket,has a rubber seal on front and back of intake,also if the seals were not installed correctly,will leak,also check pcv valve,if cloged it will build up pressure inside motor and blow oil out of the seals,if cloged replace.
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