PurpleBeeper
Well-Known Member
I’ve fought vapor lock for years. I want to add a “cool can” for the fuel line. Any recommendations? Anyone have one they’d like to sell? THANKS!
Cool Can for Fuel
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Maybe re-route your fuel line outside passengers frame rail? You must not want to run an electric pump.
PurpleBeeper
Well-Known Member
I’m running a Holley blue. I have a clear fuel filter and I can see gas boiling. I’ve insulated the fuel lines in the engine compartment and plan to wrap at least one passenger header pipe
Wow, do those things still exist ?!?!?
How are you going to cool the Kool Can? Ice only lasts so long? 
You might have vapor lock but I doubt it. I would be looking at and double checking everything.
Daves69
Well-Known Member
Lol, why they sure can! Still have mine from the late '70s. They can live a loooooong time on the old shelf.......
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You have a blue pump and you see fuel percolating ? Something is wrong. What is your pressure ? Do you have a regulator/gauge setup before the carb ?
68Moparmaniac
Well-Known Member
Could be the fuel is dead heading at the regulator, a return line recirculating your fuel would probably help with the percolating/heat issue.
if he has a small leak, can the pump pull air into the line?
PurpleBeeper
Well-Known Member
Well, I can see gas boiling inside the clear fuel filter (just before carburetors) and my mechanical fuel pressure gauge acts weird sometimes (drops to 3 psi or up to 12 psi) and the car will stop running like it’s out of gas. Cooled off, starts right up
PurpleBeeper
Well-Known Member
Yes. Regulator with pressure set at 5-1/2 psi & mechanical fuel pressure gauge.
I concur with the return line route. Should make fuel pressure more stable and reduce fuel heat some.
PurpleBeeper
Well-Known Member
Yes, the fuel dead heads at the regulator & I don’t have a return line installed. I have considered adding a fuel filter with a “vent nipple” to run back to the tank through the normal fuel line (i have a sump welded to my stock fuel tank with 2 outlets, so my factory outlet by the sending unit is capped off)
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Where is the pump located ? Where is the reg/gauge located ?
autoxcuda
Well-Known Member
Route the fuel line away from the motor (heat source) and wrap the line in thermosleeve.
Also, Thermosleeve from body hardline down frame rail next to motor.
Never had issue with this motor in past 13 years. I drive in so cal 90+ degree heat.
Also, Thermosleeve from body hardline down frame rail next to motor.
Never had issue with this motor in past 13 years. I drive in so cal 90+ degree heat.
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68Moparmaniac
Well-Known Member
Sweet looking small block
On engine masters they did a show about this issue for cooling fuel. They tried everything and the one thing they used and worked the best was a small trans cooler they piped in the fuel line and it did better than anything else they tried. DF even put a small fan on it and it worked great. Even better than a cool can with dry ice because it's maintenance free.
padam
Well-Known Member
It would be good if you could show us your plumbing.
Also, pumps don’t last forever
Also, pumps don’t last forever
PurpleBeeper
Well-Known Member
Pump over differential. Regulator on passenger inner fender. One passenger header pipe runs horizontally there & I plan to wrap it
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