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1966 122S PERSISTENT INTAKE MANIFOLD BACKFIRE 120-130 1966

posted by rotovate on Tue Jul 1 18:19 CST 2014
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last visit: Mon Jul 28 09:06 CST 2014

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Hi everyone,

I have a problem with a 1966 122 which I can't seem to make sense of. For about 6 months it has been developing an increasingly serious backfire problem through the carbs.
I had the carbs professionally rebuilt, replaced the coil and all ignition components electrical components, installed a pertronix ignitor, and have gone through long and repeated setting and re-setting of the timing, valves, and carbs. Everything appears to be working properly but the backfire won't go away. At this point it is virtually un-driveable.
No vacuum leaks, no timing gear noise, 165 psi compression in all cylinders. HELP!

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1966 122S PERSISTENT INTAKE MANIFOLD BACKFIRE [120-130][1966]
posted by rotovate on Tue Jul 1 18:19 CST 2014 >

1966 122S PERSISTENT INTAKE MANIFOLD BACKFIRE [120-130][1966]
posted by onstottc on Tue Jul 1 19:26 CST 2014 > V
- 1966 122S PERSISTENT INTAKE MANIFOLD BACKFIRE
  posted by rotovate on Tue Jul 1 21:59 CST 2014 > V

1966 122S PERSISTENT INTAKE MANIFOLD BACKFIRE [120-130][1966]
posted by riverbend subscriber on Tue Jul 1 20:34 CST 2014 > V
- 1966 122S PERSISTENT INTAKE MANIFOLD BACKFIRE
  posted by rotovate on Tue Jul 1 22:04 CST 2014 > V
  - 1966 122S PERSISTENT INTAKE MANIFOLD BACKFIRE
    posted by someone claiming to be 63pv on Wed Jul 2 06:23 CST 2014 > V
    - 1966 122S PERSISTENT INTAKE MANIFOLD BACKFIRE
      posted by Volvo From Heck subscriber on Wed Jul 2 06:51 CST 2014 > V
      - 1966 122S PERSISTENT INTAKE MANIFOLD BACKFIRE
        posted by rotovate on Wed Jul 2 08:45 CST 2014 > V
        
        1966 122S PERSISTENT INTAKE MANIFOLD BACKFIRE
        posted by planetman on Wed Jul 2 09:09 CST 2014 > V
        
        1966 122S PERSISTENT INTAKE MANIFOLD BACKFIRE
        posted by rotovate on Wed Jul 2 09:32 CST 2014 > V
        
        1966 122S PERSISTENT INTAKE MANIFOLD BACKFIRE
        posted by Phil S. on Wed Jul 2 11:21 CST 2014 > V
        
        1966 122S PERSISTENT INTAKE MANIFOLD BACKFIRE
        posted by derek uk subscriber on Thu Jul 3 05:34 CST 2014 > V
        
        1966 122S PERSISTENT INTAKE MANIFOLD BACKFIRE
        posted by rotovate on Thu Jul 3 09:19 CST 2014 > V
        
        1966 122S PERSISTENT INTAKE MANIFOLD BACKFIRE
        posted by northNH on Thu Jul 3 23:24 CST 2014 > V
        
        1966 122S PERSISTENT INTAKE MANIFOLD BACKFIRE
        posted by matt b on Fri Jul 4 08:02 CST 2014 > V
        
        1966 122S PERSISTENT INTAKE MANIFOLD BACKFIRE
        posted by phonemanjames subscriber on Mon Jul 7 16:59 CST 2014 > V
      - 1966 122S PERSISTENT INTAKE MANIFOLD BACKFIRE
        posted by kittysgreyvolvo subscriber on Thu Jul 3 23:20 CST 2014 > V
      - 1966 122S PERSISTENT INTAKE MANIFOLD BACKFIRE
        posted by kittysgreyvolvo subscriber on Thu Jul 3 23:20 CST 2014 > V

1966 122S PERSISTENT INTAKE MANIFOLD BACKFIRE [120-130][1966]
posted by Dylan Berichon on Thu Jul 3 14:00 CST 2014 > V

1966 122S PERSISTENT INTAKE MANIFOLD BACKFIRE [120-130][1966]
posted by B20Paul. subscriber on Fri Jul 4 12:11 CST 2014 > V
- 1966 122S PERSISTENT INTAKE MANIFOLD BACKFIRE [120-130][1966]
  posted by Phil S. on Fri Jul 4 15:39 CST 2014 > V
  - 1966 122S PERSISTENT INTAKE MANIFOLD BACKFIRE [120-130][1966]
    posted by JohnMc on Tue Jul 8 13:37 CST 2014 > V

1966 122S PERSISTENT INTAKE MANIFOLD BACKFIRE [120-130][1966]
posted by phonemanjames subscriber on Thu Jul 10 13:02 CST 2014 > V

1966 122S PERSISTENT INTAKE MANIFOLD BACKFIRE [120-130][1966]
posted by patrick of montreal on Fri Jul 11 05:24 CST 2014 > V

1966 122S PERSISTENT INTAKE MANIFOLD BACKFIRE [120-130][1966]
posted by rotovate on Sat Jul 19 21:03 CST 2014 > V
- 1966 122S PERSISTENT INTAKE MANIFOLD BACKFIRE [120-130][1966]
  posted by planetman on Sun Jul 20 11:16 CST 2014 > V
  - 1966 122S PERSISTENT INTAKE MANIFOLD BACKFIRE [120-130][1966]
    posted by JohnMc on Tue Jul 22 20:49 CST 2014 > V

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Volvo RWD 120-130 Forum

1966 122S PERSISTENT INTAKE MANIFOLD BACKFIRE 120-130 1966