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SU Guru needed. B20 Lean Stumble 120-130

posted by TR Conn on Wed Mar 7 22:09 CST 2018
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last visit: Fri Oct 24 10:32 CST 2014

[RELATED]

I took the car out for a test drive today.
After changing out the entire ignition system (distributor, electronic instead of points, new coil, new ignition switch). It ran like a champ!
I'm confused here... If the ignition was crapping out, why was the engine running lean? Unburned fuel would show up as super rich wouldn't it?

I went with the ignition upgrade first since I had the parts lying around. I have a few needles to play with and can reshape them fairly accurately with a Dremel tool, wet/dry sandpaper and a micrometer. So that is where I'll go next.
I wonder if I can sneak a dyno into the garage without my wife noticing.

Thanks for the suggestions.

-TR

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SU Guru needed. B20 Lean Stumble [120-130]
posted by TR Conn subscriber on Tue Mar 6 01:19 CST 2018 >

SU Guru needed. B20 Lean Stumble [120-130]
posted by derek uk subscriber on Tue Mar 6 06:43 CST 2018 > V
- SU Guru needed. B20 Lean Stumble [120-130]
  posted by TR Conn subscriber on Wed Mar 7 22:09 CST 2018 > V
  - SU Guru needed. B20 Lean Stumble [120-130]
    posted by Ron Kwas on Thu Mar 8 10:41 CST 2018 > V
    - SU Guru needed. B20 Lean Stumble [120-130]
      posted by TR Conn subscriber on Sun Mar 11 20:42 CST 2018 > V
      - SU Guru needed. B20 Lean Stumble [120-130]
        posted by Ron Kwas on Mon Mar 12 05:51 CST 2018 > V
        
        SU Guru needed. B20 Lean Stumble [120-130]
        posted by TR Conn subscriber on Mon Mar 12 21:34 CST 2018 > V
        
        SU Guru needed. B20 Lean Stumble [120-130]
        posted by Ron Kwas on Tue Mar 13 04:40 CST 2018 > V
      - SU Guru needed. B20 Lean Stumble [120-130]
        posted by derek uk subscriber on Mon Mar 12 06:06 CST 2018 > V

SU Guru needed. B20 Lean Stumble [120-130]
posted by Ron Kwas on Tue Mar 6 13:13 CST 2018 > V
- SU Guru needed. B20 Lean Stumble [120-130]
  posted by TR Conn subscriber on Tue Mar 6 19:15 CST 2018 > V
  - SU Guru needed. B20 Lean Stumble [120-130]
    posted by B20Paul. subscriber on Wed Mar 7 14:49 CST 2018 > V

Cracked Exhaust Manifold [120-130]
posted by TR Conn subscriber on Wed Mar 28 23:46 CST 2018 > V
- Cracked Exhaust Manifold [120-130]
  posted by uncle_bagley subscriber on Sat Mar 31 09:54 CST 2018 > V
- Cracked Exhaust Manifold [120-130]
  posted by TR Conn subscriber on Sat Mar 31 15:31 CST 2018 > V
  - Cracked Exhaust Manifold [120-130]
    posted by Ron Kwas on Sun Apr 1 07:22 CST 2018 > V
    - Cracked Exhaust Manifold [120-130]
      posted by TR Conn subscriber on Mon Apr 2 11:49 CST 2018 > V
      - Cracked Exhaust Manifold [120-130]
        posted by Ron Kwas on Tue Apr 17 08:55 CST 2018 > V
        
        Cracked Exhaust Manifold [120-130]
        posted by B20Paul. subscriber on Tue Apr 17 16:07 CST 2018 > V
        
        Cracked Exhaust Manifold [120-130]
        posted by Ron Kwas on Tue Apr 17 18:45 CST 2018 > V
        
        Cracked Exhaust Manifold (additional) [120-130]
        posted by Ron Kwas on Wed Apr 18 03:47 CST 2018 > V
        
        A very basic view of intake and exhaust design on a B20. [120-130]
        posted by B20Paul. subscriber on Wed Apr 18 13:40 CST 2018 > V
        
        A very basic view of intake and exhaust design on a B20. [120-130]
        posted by Ron Kwas on Thu Apr 19 07:02 CST 2018 > V
        
        A very basic view of intake and exhaust design on a B20. [120-130]
        posted by B20Paul. subscriber on Wed May 2 21:55 CST 2018 > V
        
        Cracked Exhaust Manifold [120-130]
        posted by B20Paul. subscriber on Wed May 2 21:12 CST 2018 > V
        
        Cracked Exhaust Manifold [120-130]
        posted by TR Conn subscriber on Thu May 3 16:28 CST 2018 > V
  - Cracked Exhaust Manifold [120-130]
    posted by TR Conn subscriber on Mon Apr 2 11:33 CST 2018 > V

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SU Guru needed. B20 Lean Stumble 120-130