Hi CR LeJeune-
It sounds like the oil return passages in the cylinder head are partially blocked and trapping oil in the top of the engine (inside the valve cover(s).
I would recommend an oil & filter change, but substitute one quart of Rislone oil treatment for one of the oil quarts. I also recommend Castrol GTX oil; it is the best oil out there as far as forming sludge deposits, which is probably what is blocking your oil return passages.
I would not run the engine for an extended time with the Rislone... no more than 150 miles. This is because the Rislone will break down all the sludge deposits, and ALL KINDS of TRASH / DEPOSITS will be circulating with the oil, stuff that could cause severe engine damage!!!
So if this change gets oil back circulating like it is supposed to, do another oil / filter change, but without the Rislone, and this problem will be solved. BUT if the blockage is so bad that the Rislone does not clear it, you need to remove the valve cover(s) and manually unclog the oil return passages... a job better left for a qualified technician if you are not comfortable tearing into an engine.
CR, I believe this will fix your problem, give it a try and let us know how it goes.... AND PLEASE be so kind as to rate my assistance --- your approval is my ONLY compensation for providing this service.
Jul 01, 2008 |
1993 Isuzu Pickup