dc1984

i am having a problem with my car right now.i have a 98 s13 blacktop. it smokes when i get on the gas. i used a chemical test that tests for exhaust gasas in the radiator which says that ther is a cracked head or block or a blown headgasket. i ran that three times, there was nothing wrong with that. i did a compression test. these were the results. so im pretty sure theres nothing wrong with the motors internals.

1 -170, 170

2 - 165, 166

3 - 170, 170

4 - 169, 169

i know that my oil pressure tends to bounce around. sometimes shooting over 100psi. im thinking that it is causing oil to get past the oil seals in the turbo.
im here to find out what might cause my oil pressure to be high. i dont know anything aboout tearin into the oil pump or what might cause this. any help here would be great
thanks

 

ramfacedboy

it't not your oil pump, because that usually results ina drop in pressure.

usually high oil pressures are caused by restrictions in the oil path somewhere, like a bad rod bearing or a blockage somewhere

there's little oil passages in line with your rod bearings, so if they shift at all, the hols won't line up, therefore causing a spike in pressure. This wouldn't cause the smoke, but it could be forcing oil past your piston rings, OR... more simply, your turbo seals could be leaking, which is common if you don't let your car cool down after each drive. OR your turbo could be cracked... it's really hard to tell which one of these things it could be. so start off with your turbo and elminate the possiblity of that.