Question about 1996 Isuzu Trooper
There's an oil relief valve under your valve covers, one on each side. They stick up about an 1.5 inch. at the end of your cam, you need a 10mm socket to pull them. They can cause problems, they led to mine spinning a rod bearing. I didn't realize they were bad until after rebuilding the motor. After the rebuild my oil pressure only showed around 40 psi on the dash. Most people think this normal but it isn't. These motors should be around 70-80 psi on your dash. There are other things that can cause a low reading, one of them being the shafts that hold your rockers, they're prone to wearing too if the pressure relief valves are bad. If these get worn you might as well buy another engine. I have slight wear on mine and my oil pressure is around 55psi. Just to give you an idea, the rod is around $100.00 per side and each rocker is $34.00, that times 32 valves, you get the picture. If those are worn then your main and rod bearings are probable going to go to. I put over a grand into a new crank, main and rod bearings. And that was doing it myself. A lot of people keep recommending all these miracle additives to cure ticking motors, get a life people, if it's ticking there's a problem. By the way my motor only had a 134k, and was maintained flawlessly. These motors are ****.
Posted on Jan 10, 2009
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Posted on Jan 02, 2017
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