<VV> Re:Fix the Vapor Lock / SB Vapor BLOCK

[VairMech@aol.com]

In a message dated 4/21/2004 5:10:14 PM Eastern Standard Time, 
jryall@juno.com writes:
Is this why the late pollution control vehicles have a return line from
the T on the carb side of the pump?
>>>>>>>>>>>>>>>
    The answer is a 90% yes, it was also a partial pacifaction for fuel 
emissions.
    During 63-66 the turbo engines had the return line for that very reason 
and also was an easy way to reduce the fuel pressure. So the answer is still a 
90% yes.
    On the other hand, if you look at any other GM vehicle that used a 
mechanical fuel pump and the car had AC then there was a return line. Yes it kept 
cool fuel going through the pump.
    Ken Hand