Vapor Lock/Heat Soak Problems

[jzak]

Any time I go on a long trip 1hr+ (Especially in Summer). If I stop the engine for a short period (gas station fillup), when I go to restart it, my CJ rides super rough and stalls out. It eventually comes back to life after stepping on the gas for a while. I'm thinking its a Vapor Lock/Heat Soak issue and wanted to know if there's anything I could do to prevent this from happening like heat shielding my TBI injection system.
Thanks!
Josh

 

[Scout1067]

Do you have the correct fuel filter and is it oriented properly? That is the first thing I would look at. The filter should have one input and two outputs (one to carb/efi and the other the return line to the tank. The return line should be at 12 o'clock to stop vapor locking of the fuel feed.

That's what I would look at first.

 

[Lumpy Grits]

LG

 

[gert]

Also a carb spacer out of phenolic will halo a little


Sent from my iPhone using Tapatalk

 

[jzak]

Do you have the correct fuel filter and is it oriented properly? That is the first thing I would look at. The filter should have one input and two outputs (one to carb/efi and the other the return line to the tank. The return line should be at 12 o'clock to stop vapor locking of the fuel feed.

That's what I would look at first.

Thanks for the feedback. I'll try to take a look at the return line. Just FYI, i have a Howell TBI kit, so the filter and pump runs parallel along the frame.

 

[Lumpy Grits]

You should not be seeing any v'lock with FI.
Replace your fuel filter and check the PSI of the pump.
LG