Author Topic: Carburetor  (Read 677 times)

Offline JohnnyPopper

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  • Old Goof
Re: Carburetor
« Reply #15 on: April 26, 2022, 03:53:37 PM »
Think this through with me.

It was good for two years, what changed?

Physically VL occurs when liquid gasoline changes it's nature to a gaseous state.

Your fuel pump can't pump gaseous gasoline. Only liquid.

The only things that makes it change state is heat, lots of it.

Find out where heat  is coming into contact with your fuel delivery system, metal and rubber lines, fuel pump, etc.

My money is on an exhaust leak.

Is there a reputable muffler shop that can find it for you?
1957 Apache 3100 235 Inline 6, 3 on the tree
1973 C-20, 3+3 454 4BBL TH400  Water Injection
1978 K-10, 350 4BBL TH350 NP203 M.M. Part time Kit/Hubs
1980 C-10 under construction

Offline Big Dee

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  • Posts: 17
  • Newbie
Re: Carburetor
« Reply #16 on: April 27, 2022, 09:58:16 AM »
If your truck didn't have a return line then so be it.
a good mechanical fuel pump is the way to go.
check the vent line by blowing air through it, both ends.
charcoal canisters don't last forever.
 ;)
85C30...