4.0 Front oil seal

SaltySOB · Apr 2, 2013

I have fixed all of my leaks (rear main, oil pan, drain plug, oil filter housing o-rings, oil pressure sending unit, and valve cover gasket) but I am leaking from the front oil seal still. My question is, should I replace other stuff while I have the front apart (timing chain, harmonic balancer, water pump)? My 92 4.0 has 201,000 miles and I'm hoping to get another 50,000+ before I drop in a stroker and attempt to rebuild this one to put in my J10.

cruiser54 · Apr 3, 2013

SaltySOB said:
I have fixed all of my leaks (rear main, oil pan, drain plug, oil filter housing o-rings, oil pressure sending unit, and valve cover gasket) but I am leaking from the front oil seal still. My question is, should I replace other stuff while I have the front apart (timing chain, harmonic balancer, water pump)? My 92 4.0 has 201,000 miles and I'm hoping to get another 50,000+ before I drop in a stroker and attempt to rebuild this one to put in my J10.

Harmonic balancer is a good idea.

DanMan2k06 · Apr 3, 2013

And it's not like it'll break the bank. I bought a new one when I did my rebuild and I think it was around $35. They get a groove worn in them over time and will no longer seal. With 200k it's definitely a good idea. My sister's separated from the rubber epoxy midsection and destroyed the belt.

SaltySOB · Apr 3, 2013

Good to know! Thank you

4.0 Front oil seal

SaltySOB

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cruiser54

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DanMan2k06

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SaltySOB

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