How to Prevent Holley Carburetor Fuel Boiling
I've never had fuel boiling in any carburetor.
I have and I've documented it. To be more accurate, it was the light end of the fuel mixture evaporating - not boiling like water or coolant does. When the light components vaporize in the bowl the boosters can be wet but the main characteristic is removing the air cleaner top makes it it go super lean. My point is shouldn't be seeing large amounts of liquid fuel coming out hte boosters due to hot fuel in the bowls. Much of the vapor goes out the bowl vents.
leaking from the boosters and flooding the engine
It may be vapor related but if so I suspects its vapor in the fuel line that pushed liquid fuel into bowl.
Chrysler had 3 fixes once the culprit had been narrowed down.
1. Tilt the fuel filter so the vapor goes out the outlet rather than push fuel (c. 1963). Later of course there were vapor recover lines
2. A small internal bleed in the fuel pump (circa 1972-3)
3 An earlier (1960s) kit that did the same to address hot restart problems.
4. if really desprate, techs were advised to relocate the fuel filter before the pump for certain heat issues (knowing this is a compromise)
Is this the first time you had this problem? Have you been driving it all summer and this was the first event like this?
Great point!
First time this happened, drove all summer and we had just filled the gas the day be
Summer to Winter switch is September 15 in Idaho, according to the Google Man. Could be dated info, or different if you’re in an ozone non-attainment area.
This certainly is a possible culprit. There is a date for the refiners to switch over to the winter stuff and another date for when it must be in the retail station's tanks. Winter fuel is cheaper to produce so there is an incentive...
Here's where I posted about the Chrysler kit while working on insulating the line from my self inflicted winter fuel issues
https://www.tapatalk.com/groups/rac...er-fuel-in-hot-temperatures-t1459.html#p13914