Author Topic: vapor lock  (Read 2227 times)

Offline 77 cc lb

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vapor lock
« on: September 29, 2010, 01:36:16 PM »
anybody have any any good ways of preventing vapor lock on fuel lines? thanks for any info.
87 Chevy crewcab shortbed soon to have a 454/400

Offline VileZambonie

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Re: vapor lock
« Reply #1 on: September 29, 2010, 02:01:55 PM »
carbureted or fuel injected? Keep them insulated from heat. Vapor lock means the fuel has boiled which is caused by heat and pressure drops.
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74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline 77 cc lb

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Re: vapor lock
« Reply #2 on: September 29, 2010, 03:43:44 PM »
it's carbed. would the foil tape be enough to help keep cool?
87 Chevy crewcab shortbed soon to have a 454/400

Offline VileZambonie

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Re: vapor lock
« Reply #3 on: September 29, 2010, 09:05:53 PM »
It shouldn't be boiling unless the tank isn't vented and the lines are too close to a heat source.
,                           ___ 
                         /  _ _ _\_
              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline 77 cc lb

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Re: vapor lock
« Reply #4 on: September 30, 2010, 06:00:11 PM »
thanks vile. i made a bracket for the fuel line to sit off the valve cover, which i think was the problem.
87 Chevy crewcab shortbed soon to have a 454/400