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New distributor rotor burnt

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Old Feb 12, 2015 | 03:56 PM
  #1  
214jay's Avatar
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From: England
Car: 1989 Pontiac Firebird Formula 350
Engine: 350 TPI
Transmission: 700R4
New distributor rotor burnt

Hello. I have recently got my car back together after head gasket change and replacing all of the ignition components.

I have been having some running issues and there are a number of dead spots whilst driving and badly backfires through the exhaust. Timing has been set a 6* So that's okay.

I took the dizzy off today to find the rotor is slightly burnt And has melted the plastic on the side. Not sure if this is related to my issued, have changed the dizzy and rotor for a new one today but still same faults. Has anyone experienced this problem?

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Thanks. J
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Old Feb 12, 2015 | 05:10 PM
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From: South FL
Car: 1989 Formula T-Top
Engine: 350 TPI, twin turbo
Transmission: 700R4
Axle/Gears: 3.23
Re: New distributor rotor burnt

This happened to me on a much larger scale. Rotor and where it meets cap melted right through. I later found low voltage rotted / loose wires into and around the coil and dist. One wire to the coil was being held together just by the insulation. I think coil fire signals were showing up at the wrong time in the cap and created a firestorm in there.
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Old Feb 13, 2015 | 12:07 AM
  #3  
214jay's Avatar
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From: England
Car: 1989 Pontiac Firebird Formula 350
Engine: 350 TPI
Transmission: 700R4
Re: New distributor rotor burnt

Originally Posted by TallTim
This happened to me on a much larger scale. Rotor and where it meets cap melted right through. I later found low voltage rotted / loose wires into and around the coil and dist. One wire to the coil was being held together just by the insulation. I think coil fire signals were showing up at the wrong time in the cap and created a firestorm in there.
Oh that's interesting, I will inspect the wiring around that area. Did you get any adverse symptoms as a result of this?
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Old Feb 13, 2015 | 01:54 PM
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From: South FL
Car: 1989 Formula T-Top
Engine: 350 TPI, twin turbo
Transmission: 700R4
Axle/Gears: 3.23
Re: New distributor rotor burnt

The engine was working up to the point where I went to remove the coil wire from the dist and it came off with the terminal. Surprise!

http://i1072.photobucket.com/albums/...pse50e042a.jpg
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Old Feb 13, 2015 | 03:17 PM
  #5  
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From: Huntsville AL
Car: 88GTA
Engine: 5.7TPI
Transmission: Auto
Axle/Gears: 3.27
Re: New distributor rotor burnt

GOOD LORD!!!!!!!!




Yeah, you found it alright!
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