<VV> Fwd: 110 PG with rough idle and wanting to stall at stops

Stephen Upham contactsmu at sbcglobal.net
Sun Sep 20 09:47:56 EDT 2009

I'll triple check that although I have been all over that area due to  
it possibly being a source of bad downshifting PG  (kicking when  
downshifting coming to a stop) - that is now greatly reduced though  
not completely eliminated.  Torquing the carb attaching nuts to 10-11  
lbs seemed to be the partial solution.  I even went to the extreme of  
putting hose clamps on the junctions of the rubber to metal on the  
crossover tube.  I'm also pretty sure that I didn't tighten them to  
the point of fatiguing the rubber, but I'll check them anyway and  
remove the tube and put the Mityvac to it to check for leaks.
As far as the Pertronix, electric fuel pump and distributor, you are  
right, they could be the cause of the problem, also. But the same can  
be said of the original equipment items.  I prefer the advantages of  
the system that I use, and therefore, will have to take the risk of  
them malfunctioning - which may or may not be the cause of the  
current situation.  What I really need is a step by step to begin to  
isolate the cause of the current situation.  You have provided that.   
I'll let you know what I find out.

Thanks, and hope all is well with you,


On Sep 20, 2009, at 7:44 AM, henry kaczmarek wrote:

> Stephen
> How about the  Carburetor Balance Tube?. The metal tube that runs  
> across the back of the firewall, has a fitting for another vacuum  
> line going to the air cleaner.
> If those small pieces of rubber hose that connect the balance tube  
> are bad, you'll have all manner of troube. Been there Done that.
> I hate to start another discussion on the merits of Pertronix  
> ignition, But it could also be the source of the problem.
> I'll take a Dale (or other properly rebuilt) distributor with  
> points and a OE style Fuel pump anytime over electric pumps and  
> Pertronix.    I know Lon will say he's used both forever without a  
> problem, others will too.
> My dale rebuilt Dist, Std Ignition Points and Steve Goodman rebuilt  
> carbs have only about 10K miles on them in the last 4 years, and I  
> have had zero problems.
> Hank
> ----- Original Message ----- From: "Stephen Upham"  
> <contactsmu at sbcglobal.net>
> To: "Virtual Vairs" <virtualvairs at corvair.org>
> Sent: Sunday, September 20, 2009 1:51 AM
> Subject: <VV> Fwd: 110 PG with rough idle and wanting to stall at  
> stops
>>> I'm running an electric pump.  The lines in the engine bay are all
>>> steel. The only rubber is at the tank and for a short distance
>>> between the metal line near the front of the rear wheel and the
>>> steel line coming through the fire wall.  All of the hoses (even
>>> the tank one) have less than 7k on them.
>>> Stephen
>>> On Sep 20, 2009, at 12:40 AM, J R Read_HML wrote:
>>>> Did you replace the two rubber hoses in the main fuel line (one at
>>>> each end) with modern ones?  Possibly one or both are beginning to
>>>> disintegrate and putting junk in your carbs.  Did it feel as if it
>>>> were running on only three cylinders at times?  That would be a
>>>> real strong clue.
>>>> Later, JR
>>>> '61 Rampside Standard 4/110
>>>> '65 Monza Convertible 4/140
>>>> "Keep the Love Alive"
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