Push it off a CLIFF..... Engine Problems?
Ok I have a strange one here. This had happened a few times in the past, but with no regularity. Engine hot, opperation temp, 185 to 195. Engine dies. I thought a first it was a carb problem, kinda acted like it was flooded. If you held throttle open it would fire and then die like no gas. Not vapor locked, fuel in carbs. Now it will only run about 5 mins. Long enough to get to opperating temp then dies like you just turned off key. Hold throttle open and refires, then dies. Sometimes you can hold throttle open and get it to run at about 2000 rpm, drop near idle, dies.
Here is what I have done.
At first appeared to have no or very weak spark, so I changed coil. It is an accel unit, I Know POS. But the guy at auto parts store pulled a fast one and warrentied it for me. Ran 15 mins, same problem.
Spark may be weak, not sure, but has spark, enough to nail me.LOL
Ran compression check right after died and wouldn't restart normally.
All cyl's above 130#.
Pulled dummy blower and carbs and tried holly of my 66, (which runs fine), same problem.
Checked valves to make sure they weren't too tight. It's hot now and I changed oil and used Valvoline vr 50. Valve lash looks ok.
Changed plugs ac R45TS, same problem.
Fuel pressure between 2.5 and 4 P.S.I.
Gonna stop by wrecking yard and pick up a coil, just to make sure it's not the Made in china pos accell coil. But I am lost. It has to do with temp. Let engine cool down and will refire normally and idle at normal rpm. It has got progressivly worse over the last couple of weeks till saturday, when I drove it 3 miles and died, let cool for 10 mins and off we go. Just barely made it back to the house. Died in drive.
I am ready to Push, (I can't drive it) off a friggen cliff.:mad::mad:
Any and all help appreciated. This thing is driving me crazy:whacked: