[DeTomaso] Stalling

[MikeLDrew at aol.com]

In a message dated 7/17/09 18 45 39, eanderson at geotracinternational.com 
writes:


> 
> I wonder if the fuel in my float bowls is sloshing around, suffocating the 
> carb? Is the fuel pump not keeping up (and starving the fuel supply)?
> 

It's a pretty common problem, caused by the rear float being set too high, 
and fuel sloshing from the vent tube into the carburetor and flooding the 
engine under braking.

The conventional wisdom for setting float bowl height assumes that the 
carburetor is level.   However, unless you've machined the top of your intake 
flat (or purchased a dedicated Pantera intake with a flat top), your carb is 
tilted nose-down, which throws all that conventional wisdom out of whack.   
Apparently you have to set the rear float level lower than you would 
otherwise to compensate.

On my GT350 I had the same problem, even though the carb was level.   I 
fixed it by connecting the two float bowl vents with a piece of fuel hose with 
a hole cut out of the top of it.   That way, under heavy braking, fuel that 
sloshed through the vent would slosh from the rear chamber into the forward 
one; the hole in the top of the hose ensure proper venting action.   Fixed 
the problem for good that way.

Mike


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