1 and 8 won't fire WHATS GOING ON ?????

Posted By: 340Scamp

1 and 8 won't fire WHATS GOING ON ????? - 06/26/08 10:21 PM

I changed the distributor , wires , plugs , coil, distributor cap, and even checked the cam it did not wipe it. I have petonix and tried points in it. It keeps backfiring through the exhaust and it wont fire on cylinders 1 and 8 all others fire WHAT IS WRONG WITH THIS??? 340

Posted By: stumpy

Re: 1 and 8 won't fire WHATS GOING ON ????? - 06/26/08 10:31 PM

Have you done a compression check ?

Posted By: MoparforLife

Re: 1 and 8 won't fire WHATS GOING ON ????? - 06/26/08 11:19 PM

Wild guess but check your spark plug wire orientation. 1 & 8 are next to each other in the cap. Do you have them switched?

Posted By: cupcake

Re: 1 and 8 won't fire WHATS GOING ON ????? - 06/27/08 01:27 AM

180 out

Posted By: 340Scamp

Re: 1 and 8 won't fire WHATS GOING ON ????? - 06/27/08 02:20 AM

I'll try a compression check tomorrow. THANKS!

Posted By: mopars4ever

Re: 1 and 8 won't fire WHATS GOING ON ????? - 06/27/08 04:16 AM

Quote:

180 out

Huh! It wouldn`t run if it was 180 out. He said it was running but missing/ not firing on 1 and 8. I vote for wires being crossed. Mike

Posted By: sunroofgtx

Re: 1 and 8 won't fire WHATS GOING ON ????? - 06/27/08 11:17 PM

Quote:

Quote:

180 out

Huh! It wouldn`t run if it was 180 out. He said it was running but missing/ not firing on 1 and 8. I vote for wires being crossed. Mike

Me too... Counter-clockwise.

Posted By: charge70

Re: 1 and 8 won't fire WHATS GOING ON ????? - 06/28/08 01:03 AM

When you swapped the points for the pertronics,did you use the same dist.body.I was thinking that possibly the dist.shaft may be slightly bent screwing the dwell on those two cylinders.Just a thought. John.

Posted By: 500ciDuster

Re: 1 and 8 won't fire WHATS GOING ON ????? - 06/28/08 01:55 AM

If there is too much runout in the shaft on a stock dist they wont trigger.

MM

Posted By: 340Scamp

Re: 1 and 8 won't fire WHATS GOING ON ????? - 06/28/08 02:08 AM

I just found out what it was. I have my coil on my inner fender and it has a pretty long coil wire. when I changed the plug wires I did not change the coil wire ( none long enough ) Changed that an set the timing and it sounds crisp now . THANKS to everyone, really appreciate it. Thank GOD! this was driving me nuts.