<VV> Rochester Idle Circuit Inconsistencies

[Mikeamauro at aol.com]

Thanks for responding, Frank...
 
"...Possibly the tank coating is redepositing  itself in the idle 
circuit?..." 
Sounds plausible, but the intermittent issue is  also occurring on my 67 
coupe, and the coupe's fuel tank has never been coated.  Grant (the Carbmister) 
surmises the issue may be related to today's  fuel, and the additives therein 
(including, but not limited to, ethanol). While  I continue to buy locally, fuel 
from stations whose supply is still non-ethanol  containing, on trips 
(however infrequently) I've had to use ethanol  "infested" fuel. Grant recommends the 
use of Techtron Fuel System Cleaner,  and I'll start using same as a 
preventive maintenance measure.
 
I personally know of one other  local individual experiencing this same issue 
(the need to occasionally  squirt carb cleaner into the idle mixture circuit 
to maintain a smooth idle),  but have received no other responses from anyone 
who has  actually been experiencing this problem...  must be a condition 
specific to  Corvairs residing is St. Pete FL  : >)
 
Mike Mauro  



In a message dated 11/2/2008 10:14:49 P.M. Eastern Standard Time,  
virtualvairs-request at corvair.org writes:

Message:  10
Date: Sun, 02 Nov 2008 22:13:21 -0500
From: Frank DuVal  <corvairduval at cox.net>
Subject: Re: <VV> Rochester Idle Circuit  Inconsistencies
To: virtualvairs at corvair.org
Message-ID:  <490E6C51.8070707 at cox.net>
Content-Type: text/plain;  charset=ISO-8859-1; format=flowed

So you are saying the metal is  distorting in the carb? I have seen white 
deposits form in seldom used  carbs. If it isn't debris or fuel 
contaminaltion, then what is left?  Especially if carb cleaner down the 
idle mixture screw hole fixes  it....

Possibly the tank coating is redepositing itself in the idle  circuit?


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