I had the car on a scope last month and #4 and #6 cylinders
we not firing well. Looked like the top of the wave was clipped
on the scope. Anyway, I did a valve job, replaced timing chain, and put new valve springs in. Also, I had the injectors checked, and put in a new injector harness. New wires and plugs, too.
Guess what--still misses. The only think that concerned me was
the top 3/8 of an inch of the 4 and 6 cylinder bores. Seemed like
some carbon--yet the compression in all cylinders is 140 cold--
I know, but I don't go near this thing when it is hot!!. I'm not burning any oil, but I do have low vacuum with 12 lbs at idle with
A/C on. Heads were planed, valve guides replaced. Any ideas??
we not firing well. Looked like the top of the wave was clipped
on the scope. Anyway, I did a valve job, replaced timing chain, and put new valve springs in. Also, I had the injectors checked, and put in a new injector harness. New wires and plugs, too.
Guess what--still misses. The only think that concerned me was
the top 3/8 of an inch of the 4 and 6 cylinder bores. Seemed like
some carbon--yet the compression in all cylinders is 140 cold--
I know, but I don't go near this thing when it is hot!!. I'm not burning any oil, but I do have low vacuum with 12 lbs at idle with
A/C on. Heads were planed, valve guides replaced. Any ideas??