I bought a '74 Bronco about 6 months ago and the fellow I bought it from admitted it had a moderate oil leak. I finally bit the bullet and tore the motor down to the
timing chain. It became perfectly obvious where the oil leak was - Someone had put a cast aluminum oil pan (F67E 6675 HC 1996?) on the motor and either didn't notice the flat
rubber seal on the cover can't mate properly with the pan that has a raised groove or just hoped for the best and just mashed it in. This also caused the balancer seal to not seal right.
Has anyone else encountered this? I was considering all possible fixes including filing the groove on the pan flat, ditching the pan for a proper steel pan or perhaps I need a late 90's
timing cover that would match (but would it bolt up the same?) I understand using the Explorer pan is done by many people, but what is the fix?
timing chain. It became perfectly obvious where the oil leak was - Someone had put a cast aluminum oil pan (F67E 6675 HC 1996?) on the motor and either didn't notice the flat
rubber seal on the cover can't mate properly with the pan that has a raised groove or just hoped for the best and just mashed it in. This also caused the balancer seal to not seal right.
Has anyone else encountered this? I was considering all possible fixes including filing the groove on the pan flat, ditching the pan for a proper steel pan or perhaps I need a late 90's
timing cover that would match (but would it bolt up the same?) I understand using the Explorer pan is done by many people, but what is the fix?
Last edited:
