<VV> Choke Pull Off

[Rudy Korb]

Well, I had enough hose to cross-connect the pull offs.  Guess what, the same right one started rattling.  That should eliminate any problem with the right side valves.  Could it be that this pull off is also defective????  What are your ideas    Rudy

Sethracer at aol.com wrote:        In a message dated 6/23/2007 1:55:17 PM Pacific Daylight Time, rudyandbrenda at sbcglobal.net writes:
  Hi all, need some help.  I have a 67 Monza 110/pg and the right (as your facing the engine) choke pull off has a rattle sound when in gear and idleing.  I thought the old one was bad so I replaced it and the new one does the same thing.  The left one is just fine. The rattle stops when you give it some throttle, but returns when you get back to idle.  At idle without being in gear and higher rpms, it works great.  Just seem that this occurs at low rpm.  What do I need to do???  
   
  Thanks for your help,
   
  Rudy Korb

  
  What Matt was trying to say (in his shorthand) is that the rattle is pretty common on the Corvair motor. It probably does come from a pulsing in the intake manifold, perhaps caused by valve adjustment? Have you pulled off one of the vacuum lines that feed the pull-off and attached a vacuum gauge to it?  If you do that and see pulsing - the indicator jumping back and forth, pulsing is the issue. You mentioned that the other side isn't doing it. If you have a bunch of tubing, try connecting the pull-offs to the port on the other sides carbs. (I am suggesting this only for diagnostics- there are enough hoses and wires running around now.) See if the problem moves to the other carb. It should, if the pulsing vacuum is the cause.  This maay sound strange but you could put another balance tube between the two carb manifold vacuum ports and feed both chokes from it. I guess that would, at least reduce the effect of the pulsing. - Seth



    
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