okay i have a 1990 plymouth laser. it runs very and the compression is good but it smokes. im thinking valve seals? Also i need to know the tool to remove the seals. Thanx
Could be, but first I would change the PCV and the hose going to it. At 18 years of age, it's prolly not pulling out the blowby. To chance the seals, you need a air line and a fitting that fits into the spark plug holes and a pressure line.
Valve seals smoke on start up because they leak down as it sits parked, and does some when running. You will have to remove the valve springs, so need an air compressor, valve spring tool and a whistle so you can find top dead center on the compression stroke for each cylinder.
The problem could be valve seals if you are getting good compression readings but more than likely is probably a air/fuel mixture problem. Clean and maintenance the intake and fuel system first since its easier and less expensive than the valve seal replacement. The problem could still be worn piston rings since oil getting past the rings would still give good compression readings. Good luck
spring compressor is only special tool you need, can borrow one at autozone for free (you pay a deposit but get it back) but one question, does it smoke when you start it up then quit after a while? that is valve seals. If it smokes after warm up and when you accellerate its probably the wiper rings in the engine.
