<VV> Carb Problem

corvairs lonwall at corvairunderground.com
Sat May 20 15:34:34 EDT 2006


Smitty and all - We have been trained as Corvair folk, that when one 
side is "dead" it can only logically be the carb. There  are however, 
two other very obscure posibilities. One would be an induction crack in 
the head (but that doesn't exactly match your symptoms) the other is a 
poor electrical ground to that head. I would run a very secure ground 
wire directly bolted into that head and see if it alters the problem.  
These are very unusual problems but when you get to this point - Lon

www.corvairunderground.com

Mike Stillwell wrote:

> Smitty, 
> I hate to say it (because it would be easier if it
>were), but it's not the carb! Padgett's car has a
>similar problem. What do your plugs look like? Maybe
>they are slightly fouling, then clearing when the
>engine is goosed.  Is this the side that had the head
>problem?
>
> Regards - Mike
>           YS-117
>
>--- Smitty Smith <vairologist at verizon.net> wrote:
>
>  
>
>>Smitty says:  Let me start this by saying that it
>>hurts my pride to come on here asking for help on
>>this subject because I believe I know as much about
>>HVs as almost anyone out there.  Here's the deal.
>>  Reassenbled engine that has same carbs mounted as
>>were on there before tear down.  On start up right
>>carb failed to work.  When running on left carb,
>>throttle could be raised with the aid of accel pump
>>above a certain level, where right would then start
>>working.  (maybe 2,000 rpm).  Carb was torn down and
>>inspected.  Bowl fuel level was normal when opened. 
>>Venturi cluster was rodded out and blown out.  No
>>problems noted.  lower body ports and passages
>>rodded out and blown out.  All clear.  Carb
>>reinstalled with same result.  Fuel mist was sprayed
>>around all possible vacuum leak points with no
>>change.  Modulator checks good, crossover is tight,
>>base gaskets and insulator are good.  Second carb
>>obtained which was suspected to be good.  Opened up
>>and cleaned and reassembled.  When installed acted
>>exactly as first one.  I have a test carb I keep on
>>the shelf for engine tests.  Tried it with same
>>results.  
>>  Although I knew the bowls were being filled I
>>checked fuel pressure at 4 1/2 lbs.  In a fit of
>>desperation I checked compression.  All cyls read
>>122 to 125.
>>  What am I missing ?  I have 10 hours invested in
>>this problem.
>>    
>>
>
>
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