<VV> Fuel line problems, vapor lock

[jwcorvair at aol.com]

I live in Colorado (probably should have mentioned that in my first email) and we have ethanol in our fuel. We've had it for years. My problem with "vapor lock" has been getting progressively worse over the last couple of years. Before that, I never had a problem with stalling and not being able to quickly restart. At this time, I am inclined to think that I might have a weakness in my fuel delivery system. I'm going to work on fuel delivery first. The corrections are cheap because I have most of the parts. The only challenge will be the fuel tank sock, but that is not really a signifcant challenge. I'll get to all of the changes this weekend.

Joe
CORSA, RMC


-----Original Message-----
From: David Houston <judgehouston at yahoo.com>
To: VirtualVairs at corvair.org
Sent: Tue, Jul 7, 2009 7:59 am
Subject: <VV> Fuel line problems, vapor lock



The problems with your 1962 conking out is identical to what happened to many 
carburetored vehicles when the state allowed the sale of E-10 in the spring of 
2008.? Is ethanol being sold where you are?? If there is a weakness in your fuel 
delivery, E-10 may make it a major problem. Two other corvair owners and myself 
developed 'pinging' and vapor lock under load. Like others have suggested, check 
every component of your fuel system. I would go with the electric fuel pump, if 
you do have ethanol. We installed three of them with great results by 
eliminating the 'stalling under load' (ex: hill climbing,accelerating) on all 
three corvairs.? I do add a tetra-ethyl lead additive called Max Lead 2000 to 
the ethanol, that has the effect of raising the boiling point of the fuel by 
about 30-60 degrees F, depending on mixture. This additive allows me to keep the 
timing at stock. The other alternative is to replace the mechanical fuel pump, 
if the current one is
 wearing out.


      
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