Car wont run when hot.
01-27-2015, 10:56 AM
#21
Melting Slicks
Member Since: Jan 2014
Location: Downers Grove Illinois
Posts: 2,477
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For those who think "vapor lock" is similar to the loch ness monster.
Here is a link
http://www.google.com/url?sa=t&rct=j...N32--pwY-AutXQ
Could the OP not have this problem? Sure
I go by what the OP stated, - fuel starvation
Here is a link
http://www.google.com/url?sa=t&rct=j...N32--pwY-AutXQ
Could the OP not have this problem? Sure
I go by what the OP stated, - fuel starvation
01-27-2015, 11:29 AM
#22
And absolutely no surprise to at least some of us............
Note the the pump in question is a standard 2 port version. In '68 GM began installing 3 port pumps on some C3 Corvettes, depending on engine option. The third port is to provide for a bypass/return path to the tank. Although described by GM as a vapour line, it's largest benefit is allowing a greater volume of fuel to be pushed through the pump. This larger volume of fuel keeps the pump temperature down preventing vapours from forming in the first place.
In essence the pump is being 'liquid cooled' just like in the video. You'll note the owner of the video is talking about installing a bypass line to solve his problem.
Note the the pump in question is a standard 2 port version. In '68 GM began installing 3 port pumps on some C3 Corvettes, depending on engine option. The third port is to provide for a bypass/return path to the tank. Although described by GM as a vapour line, it's largest benefit is allowing a greater volume of fuel to be pushed through the pump. This larger volume of fuel keeps the pump temperature down preventing vapours from forming in the first place.
In essence the pump is being 'liquid cooled' just like in the video. You'll note the owner of the video is talking about installing a bypass line to solve his problem.