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Random B18 engine anomalies 140-160 1968

posted by drj434343 on Mon Jun 29 16:37 CST 2009
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last visit: Thu Oct 24 09:46 CST 2013

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I've done some more investigation. This afternoon I removed the carbs and began poking around in the manifold.

After inspecting the the gaskets between the carbs and manifold, then the manifold and the head, I noted that they all looked brand new. This is probably due to the head gasket being replaced by the previous owner about 6 months ago. I'm guessing he decided to replace those gaskets when the head was off. At any rate, all the gaskets looked good to my eyes.

However, as you can see from the manifold picture, it appears I have those secondary butterflies, as you call them. I noticed that there appeared to be quite a bit of play in both their shafts. Could these be letting in enough air to be all of my problem?

While playing around with everything, it seemed like those secondary butterflies would actually open up when the throttle was wide open. Can I really just totally remove them and plug the hole?

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Random B18 engine anomalies [140-160][1968]
posted by drj434343 subscriber on Fri Jun 26 12:14 CST 2009 >

Random B18 engine anomalies [140-160][1968]
posted by walrus3 subscriber on Fri Jun 26 13:10 CST 2009 > V

Random B18 engine anomalies [140-160][1968]
posted by alschnertz subscriber on Fri Jun 26 13:36 CST 2009 > V
- Random B18 engine anomalies [140-160][1968]
  posted by drj434343 subscriber on Fri Jun 26 19:59 CST 2009 > V
  - Random B18 engine anomalies [140-160][1968]
    posted by alschnertz subscriber on Fri Jun 26 23:45 CST 2009 > V
    - Random B18 engine anomalies [140-160][1968]
      posted by Pebee subscriber on Sat Jun 27 05:17 CST 2009 > V
  - Random B18 engine anomalies [140-160][1968]
    posted by sdewolfe subscriber on Fri Jun 26 23:48 CST 2009 > V

Random B18 engine anomalies [140-160][1968]
posted by Pebee subscriber on Fri Jun 26 14:55 CST 2009 > V

Random B18 engine anomalies [140-160][1968]
posted by derek uk subscriber on Sat Jun 27 00:05 CST 2009 > V
- Random B18 engine anomalies [140-160][1968]
  posted by drj434343 subscriber on Sat Jun 27 07:13 CST 2009 > V
  - Random B18 engine anomalies [140-160][1968]
    posted by Pebee subscriber on Sat Jun 27 10:20 CST 2009 > V
    - Random B18 engine anomalies [140-160][1968]
      posted by drj434343 subscriber on Sat Jun 27 10:24 CST 2009 > V
      - Random B18 engine anomalies [140-160][1968]
        posted by Pebee subscriber on Sat Jun 27 15:42 CST 2009 > V
  - Random B18 engine anomalies [140-160][1968]
    posted by drj434343 subscriber on Sat Jun 27 10:23 CST 2009 > V
    - Random B18 engine anomalies [140-160][1968]
      posted by derek uk subscriber on Sat Jun 27 12:20 CST 2009 > V

Random B18 engine anomalies [140-160][1968]
posted by Rhys on Sat Jun 27 12:38 CST 2009 > V
- Random B18 engine anomalies [140-160][1968]
  posted by drj434343 subscriber on Sun Jun 28 17:27 CST 2009 > V
  - Random B18 engine anomalies [140-160][1968]
    posted by aaron74 on Sun Jun 28 17:57 CST 2009 > V
    - Random B18 engine anomalies [140-160][1968]
      posted by drj434343 subscriber on Sun Jun 28 18:18 CST 2009 > V
      - Random B18 engine anomalies [140-160][1968]
        posted by aaron74 on Sun Jun 28 18:39 CST 2009 > V
        
        Random B18 engine anomalies [140-160][1968]
        posted by drj434343 subscriber on Sun Jun 28 19:03 CST 2009 > V
        
        Random B18 engine anomalies [140-160][1968]
        posted by sdewolfe subscriber on Sun Jun 28 22:29 CST 2009 > V
        
        Random B18 engine anomalies [140-160][1968]
        posted by derek uk subscriber on Sun Jun 28 22:52 CST 2009 > V
    - Random B18 engine anomalies [140-160][1968]
      posted by drj434343 subscriber on Mon Jun 29 09:13 CST 2009 > V
      - Random B18 engine anomalies [140-160][1968]
        posted by aaron74 on Mon Jun 29 12:25 CST 2009 > V
        
        Random B18 engine anomalies [140-160][1968]
        posted by drj434343 subscriber on Mon Jun 29 16:37 CST 2009 > V
        
        Random B18 engine anomalies [140-160][1968]
        posted by aaron74 on Mon Jun 29 17:27 CST 2009 > V
        
        Random B18 engine anomalies [140-160][1968]
        posted by Rhys on Tue Jun 30 10:42 CST 2009 > V
  - Random B18 engine anomalies [140-160][1968]
    posted by Rhys on Sun Jun 28 18:47 CST 2009 > V

Random B18 engine anomalies [140-160][1968]
posted by drj434343 subscriber on Thu Jul 2 10:14 CST 2009 > V
- Random B18 engine anomalies [140-160][1968]
  posted by drj434343 subscriber on Thu Jul 2 12:31 CST 2009 > V
  - Random B18 engine anomalies [140-160][1968]
    posted by Rhys on Fri Jul 3 06:34 CST 2009 > V
    - Random B18 engine anomalies [140-160][1968]
      posted by drj434343 subscriber on Fri Jul 3 07:56 CST 2009 > V
      - Random B18 engine anomalies [140-160][1968]
        posted by Rhys on Fri Jul 3 11:31 CST 2009 > V
        
        Random B18 engine anomalies [140-160][1968]
        posted by drj434343 subscriber on Sat Jul 4 07:42 CST 2009 > V
        
        You've found it, and should be saying VOILA! right about now! [140-160][1968]
        posted by Ron Kwas on Sat Jul 4 09:48 CST 2009 > V
        
        You've found it, and should be saying VOILA! right about now! [140-160][1968]
        posted by drj434343 subscriber on Tue Jul 7 11:57 CST 2009 > V
        
        You've found it, and should be saying VOILA! right about now! [140-160][1968]
        posted by Kentucky subscriber on Tue Jul 7 13:50 CST 2009 > V
        
        mail address [140-160][1968]
        posted by Rhys on Sat Jul 4 10:34 CST 2009 > V
- Random B18 engine anomalies [140-160][1968]
  posted by RNANS on Fri Aug 7 17:56 CST 2009 > V

Random B18 engine anomalies [140-160][1968]
posted by drj434343 subscriber on Wed Jul 29 18:04 CST 2009 > V

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Random B18 engine anomalies 140-160 1968