Distributor Rebuild went great! Timing set to 14. Backfire gone.
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Supreme Member
Joined: Feb 2002
Posts: 3,266
Likes: 1
From: Moved... GA still, more garage space!
Car: 87 Red/Blk Bird loaded 3.4L & 700R4
Transmission: Th700R4
Axle/Gears: 3.73
Distributor Rebuild went great! Timing set to 14. Backfire gone.
I just wanted to thank TomP and Karl for all teh info on disributor rebuilds. It was one of those tune ups items I did not think was an urgent thing. I figured it either worked or it didn't.
Boy was I wrong. Everything else had been checked/replaced on the car. It ran like crap. No low end torque or throttle responce. Well we decided what teh heck what could it hurt. i ran a search and got the How tos. We took it out cleaned it and replaced the ignition module & P/U coil. Gearing looked good.
Put it back in and double checked the timing. It was off so we put it back to 10. It ran better, but the car still lacked the pull. For the heck of it we advanced it to 12. Better then to 14. Wow the car puts me back in the seat now. I think I'm back to how it ran from the factory & then some. So the car is at 14 degrees of timing and running on 87 octane and there is no pinging.
Our guess, there is a good chance the balancer has slipped or was built wrong. Only thing I can come up with the explain why it backfired for so long with the timing set right on 10.
Boy was I wrong. Everything else had been checked/replaced on the car. It ran like crap. No low end torque or throttle responce. Well we decided what teh heck what could it hurt. i ran a search and got the How tos. We took it out cleaned it and replaced the ignition module & P/U coil. Gearing looked good.
Put it back in and double checked the timing. It was off so we put it back to 10. It ran better, but the car still lacked the pull. For the heck of it we advanced it to 12. Better then to 14. Wow the car puts me back in the seat now. I think I'm back to how it ran from the factory & then some. So the car is at 14 degrees of timing and running on 87 octane and there is no pinging.
Our guess, there is a good chance the balancer has slipped or was built wrong. Only thing I can come up with the explain why it backfired for so long with the timing set right on 10.
Supreme Member
Joined: Mar 2000
Posts: 13,414
Likes: 6
From: Central NJ, USA
Car: 1986 Firebird
Engine: 2.8 V6
Transmission: 700R4
Great! Congrats on the rebuild & the "fix"! Did you put a stock module in, or did you spring for a performance one (accel or holley)?
Thread Starter
Supreme Member
Joined: Feb 2002
Posts: 3,266
Likes: 1
From: Moved... GA still, more garage space!
Car: 87 Red/Blk Bird loaded 3.4L & 700R4
Transmission: Th700R4
Axle/Gears: 3.73
We went stock because the had none in stock and we knew it would take Barnett 3-4 weeks before we could have the part. Summit a few days, but no discount there. I wanted to get it going before I had to go up to TN for a show. So I might have lost just a smidge, but since we are talking about a V-8 soon, I figured Eh.
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