where is this oil coming from?

[T4R2014]

I agree with above. I know a lot of people dont change them till they leak. My rig uses no oil yet its hard for me to imagine they are not seeping a little right now. My next belt is due in about 20k miles, which is also at 295k. It will get it done sooner. It will get new seals Will also do oil cooler and the hoses related, as the parts are now 20+ years old and nearly 300k miles.
Similar, when doing upcoming vc gasket job and all that is opened up, any water hose under intake etc, ( hard to get to) is getting replaced, as those too are very old.

Just from personal experience, I can tell everyone that 20+ years and the crank seal leak will take a toll on the harmonic balancer.

 

[keeperofgoal]

once i fix my fuel tank issue im gonna tear into the motor do vc gaskets and tb/wp job with some help from a mechanic friend. I already bought the crank and cam seals+plugs a couple weeks ago so ill get a dipstick tube o ring and we'll be good to go. Gonna do some serious engine cleaning when we get some good weather before we get to work on it.

 

[cas5259]

I had a dipstick tube o-ring leak. Here’s what mine looked like. There’s plenty of people who say if it’s not leaking, don’t touch it, but these cam and crank seals are 20ish years old and easy to replace. Just use OEM and you’ll never have to do them again.

 

[keeperofgoal]

I had a dipstick tube o-ring leak. Here’s what mine looked like. There’s plenty of people who say if it’s not leaking, don’t touch it, but these cam and crank seals are 20ish years old and easy to replace. Just use OEM and you’ll never have to do them again.

thanks for posting that yours looks so much better than mine! come to think of it i have never seen the top of my oil pan on any of my 3rd gens im guessing i have multiple leaks based on what everyone else said.