- Reaction score
Have not had this experience, but have read that it might fire if you squirt extra oil in the cylinder. Maybe warm the engine up a bit before taking the readings?I tested the compression of each cylinders of my 2GM20F. Cylinder #1 270psig and Cylinder #2 250psig. These numbers seems way too low as expected is 370-450psig. I should have squit some oil into each cylinders before trying again to see if the pressure will come up. If it does I suppose it means my piston rings are wore. But I forgotten about this step. I'll schedule anither day for this test again.
If it starts OK when cold, the compression may be OK? But if it is below spec it may be an indication that the rings are worn or the valves are leaking.
I have read that an oil analysis may show where a problem may be? It would be interesting to know what you find.