Vapor Lock Anyone?

[UnionJack]

Hi all,
I was asked by a friend who is restoring a early 3000 if I thought that re-routing the fuel line to the carbs away from the exhaust manifolds to avoid vapor lock in the fuel lines from excessive heat was a good idea or not. I think that maybe the Healey's did this on the later 3000's (BJ8's maybe), but I'm not sure how much of a problem there is with the early cars. Anyone out there (especially those in warmer climates) have problems with vapor lock?

thanks much,


Cas

 

[Keoke]

Hi Cas, Vapor lock is not a high priority problem on the cars unless you realy run into some high ambient temperatures. Correcting the problem on the BJ8 cars relocated the fuel pump and lines to the opposite side of the car.---Keoke

 

[Dave Russell]

Quite a few cases of suspected "vapor lock" have turned out to be a tiny air leak on the suction side of the pump. With the pump very close to the tank, such as Healeys, most of the line is pressurized & much less subject to vapor lock. Most likely to vapor lock is a very long line on the suction side of the pump, such as with a front mounted pump.
D