Has 145 lbs compression/ sbc sj 327 84 gmc truck carborator can adjust the valves don't pull the motor down on #8 cylinder all the rocker arms are moving like they should
Check the injector resistance. (11 to 15 Ohms) Check for fire at the injector plug. Noid light or test light. Should flash on and off when trying to start or running.
Testimonial: "it is in a 84 gmc truck with a carborator"
Distributor cap, plug or plug wire then.
put new distributor an cap wires on. still doing same thing. pull the plug out an its firing just not firing in the cylinder.
all the rocker are moving good when I adjust the valves on that cylinder it does not pull the motor down
put new distributor an cap wire plugs on still missing. can pull the plug out of block it is firing. rocker arms moving like they should. adjust the valves # 8 cylinder does not pull the motor down....sorry if you already got this once refreshed screen an my comment was not there.....
You replaced valves. Did you do it or have a shop do it. And also check the head? Question I have is why would you have a broken and bent valve on a non interference engine. On one cylinder. A broken valve usually drops in the cylinder and causes serious damage. Even scar up the cylinder wall is serious.
My bad. I thought two bad valves. The push rod is a bit different. That lifter for the valve is locked up, basically solid. You should have replaced it also. You have one shot to clean it. Warm the engine to operating temperature and add 1/2 quart of transmission fluid. run it at idle for about 30 minutes. If the lifter clears out, it will quit misfiring. Change the oil. If not, look at replacing the lifter/s. I would do all them.
new set of heads from jegs about 15 miles on them. changed the lifters on #8 cylinder still missing.
Well you have pressure. you have spark, Most likely you have fuel. (carburetor) So it is most likely the intake manifold gaskets or the intake manifold it self. i just did a 350 intake.. Told them it needed replaced. They didn't do it. 1 month later, they are doing it over again. With a different intake.
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