Overheating/Vapor lock Fix for JGW

STS last @pad9.nasa.gov wrote:
> Nice group!!

Interesting solution, thanks for sharing.
Also xposting to the other group. Not too many regulars left
but this is worth sharing.

Another thing you can do is use some silicone tubing or simply cut a slot
down some large diameter vacuum line and let that snap over the top of
the fuel line. Secure with some zip ties. I do this to keep the lines
that run next to my exhaust (4.0) from getting too hot.

They also make insulation wrap. Usually found in the sparkplug section.


> A little info for you JGW owners. Ever have that
> damned vapor-locking problem on a warm/hot day? I found the
> answer to the
> problem and it didn't cost 1 cent!!! I took a good long look at the
> engine. I noticed that the fuel line sat FLUSH on top of the engine.
> I had HEARD that some automotive engineer from "back-in-the-day" had
> a problem with gas-line freeze in the winter months. Guy apparently
> lived WAY up north where it's cold most of the year. He had helped
> design the JGW and had designed the gas line to run flush on top of
> the block to cure gas-line freeze. For us folks that drive the JGW
> year 'round down here in the South, that gas-line was causing vapor
> lock like there was no tomorrow. I had gone out and bought the newer,
> biigger beefier radiator, the electric fans, new thermostats, et. al.
> Nothing seemed to work. Not until I just SAT and stared at that gas
> line. After a couple of minutes, I noticed something REAL strange. If
> you take an automotive crowbar and slip it UNDER the gas line on top
> of the block, left it BARELY an inch or so.
> Problem solved. I run the ol' girl with the original radiator and
> fan, now. It was 93 yesterday and I was runnin' down the road with
> the A/C on full blast, no problems.
> In stop and go traffic in August In Fla, I've got the A/C on full
> blast. freezin' my ass off in the car and NO VAPOR LOCK, NO OVER
> HEATING!!!!

Tried the insulation amd rubber tubing. Temp fix at best. This works best on
the 360 V-8.