<VV> Vapour Lock? No, Vapor lock

[Frank DuVal]

Brent Covey wrote:

>
>Vapour lock is very uncommon with Corvairs in my experience, Corvairs are
>not very prone to it generally, theres no heat in the engine compartment to
>speak of compared to a water pumper.
>
>Brent Covey
>Vancouver BC
> _________________
>  
>

Spoken like a Canadian! 

Here in Virgina, which is not as hot as other places out west, but we 
can see 100º at times, I have seen many cases of vapor lock. Now, they 
could have been aided by weak fuel pumps (like Smitty's example), but 
back in the early to mid 80's when "they" were fooling with gasoline 
formulations I installed at least 20 electric fuel pumps on customer 
cars to overcome vapor lock problems that would not go away with new 
fuel pumps, replacing rotten hoses, etc. 3 out of the 4 daily drivers I 
used in the 80's and 90's had electric fuel pumps. People get tired of 
waiting 20 minuites to restart their car after in dies in the road a 
block away from where they parked on a hot day.

The heat in the engine compartment is from the engine. When you stop, 
the 400º heads must pass their heat onto something since the fan is no 
longer turning. Typically this heat rises and goes into everything above 
the heads (carbs, fuel system. alternator, etc.). Corvairs are cooler 
when running, but hotter when stopped.

Frank DuVal