Did you do a compression check on this car. You have a misfire and you cant get the valves to seal. Maybe you have a bad valve.

John Roncallo

Roncallo,
I don't suspect a bad valve, the car ran very smoothly before I started this repair. I decided to change the valve stem seals because I had blue smoke at start up every so often. The timing chain, tensioner, and guide rails were done because of the mileage on the car, 107k.
I started the car this morning, it will run and idle on it's own. However, it wants to search for an idle. Between 800 and 1000 rpm. And it wants to miss, but not the steady miss it had before. This miss is like an "out of time" miss, the kind you get when the timing is too far advanced.
After replacing the timing chain I had 2 degrees of stretch, timing marks on cam gears was right on, and the rotor on the distributor was right under the number 1 plug wire. So I'm back to looking for vacuum leaks....
Jet

I found the best way to determine TDC for each piston in turn was with a piece of coathanger wire, marked with a small piece of tape. You stick it into the sparkplug hole resting on the top of the piston until it comes up and just starts to go down again. Then put the tape on the wire right at the edge of the sparkplug hole.

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1986 560SL
2002 Toyota Camry
1993 Lexus