Rear Main Seal Replacement

Quoting Brianawd:

My motor was pegging my 100psi gauge at any thing over 3k. That never once caused a seal to blow out. I have never see a rear,front or any other seal blow out on a 4g63 because of two high of oil pressure. There is something else going on with your car.



Not the seal itself, but I found I am completley lacking the oil seperator ring./ubbthreads/images/graemlins/banghead.gif

I will do a writeup on this repair, along with the oil pressure porting for those with similar engine configurations.

 

[cspetros]

Quoting Vman911:
They also make a rear main seal sleave. After awhile the seal makes a groove on the crank and the sleeve is made to go over the crank to seal it up better. I can find out where my dad got his for his vr4. It was pretty cheap like 6.00 I think. MY dad got the sleave at parts dinosaur its on the last page of mitsu parts.

If you do replace the oil slinger MAKE SURE you put it back the same way you found it. the hole in it goes on the bottom.



For those whose crankshaft has developed a worn groove at the location of the rear main seal: Mitsubishi Rear Crank Seal Repair Sleeve