Quote:
Originally Posted by Cadin
Hey RollGuy,
I have smelled the oil, and it doesn't smell burnt, but would that happen with synthetic? (Which is what I'm running). I've done the loosen injector test more than once, and it doesn't effect the sound.
Does that eliminate piston-slap as well, or just the injectors? I have heard from a few folks that piston-slap is not an unusual culprit. What say ye?
|
I believe piston slap sounds different than a rod knock or injector nailing. Does the engine idle smooth out in between loosening of each injector nut? Yes each one should make the engine stumble when loosened, but it should go back to idling smooth if the injectors are good. If you rule out a bad injector or injectors, then the only thing left a problem in the reciprocating assembly. I am not sure if synthetic would smell burnt or not, but dino oil will definitely smell if a bearing was bad. You might want to try changing the oil to 15-40, and adding some Lucas oil stabilizer. If your noise goes away or is lessened, you know where the problem is...Rich