No more ethanol free gas in Canada?
What problems do you have with ethanol oxygenated gasoline
My stock 67 dart 273 2bbl when it got in the 90s out and I would sit in a fast food line it would boil the fuel in the fuel lines. Everything would be fine until I got back on the street and leave from the first stoplight.
A few hundred feet down the road it would act like it ran out of gas. Lift the pedal and lightly add the gas back in and it would recover.
One day it was happening so I got it back home and opened the hood to find the clear (yes I know I know, and it's not clear any longer) fuel filter was visibility almost empty.
I let it idle for 20 to 30 minutes and watched the filter rapidly fill with fuel then slowly drain, till it was almost empty, at which point the engine rpm would start to drop off the woosh it would refill and the rpm would pick up. (I have video)
I put a pressure gauge on it with a T and watched the pressure between the fuel filter and the carb.
Full filter 6 lbs ( just a number as I don't recall the actual number)
Filter 1/2 full 6 lbs
Filter 1/4 full 6 lbs
Filter empty 6 lbs
Rpm dropping off and the pressure starts dropping off, till woosh, it refills and I'm back at 6 lbs
I might have video of that too!
Fast forward....
I ran the tank down to near empty filled it up with alcohol free gas, did that 2 to 3 times so now it is all alcohol free.
It has never happened again.
I did not rerout the lines, add a return, or insulate anything.
All I did was remove the alcohol from my fuel
I have on several 95 to 100 deg days, after driving 30 minutes in city driving, i let the car idle in gear for 10 or more minutes.
Then...
Replicate the circumstances where it would die and not a single time has it happened again. It's been 3 or 4 years now.
All I can think of is the fuel was boiling in the lines, the float was high enough to not need more fuel. The gasses would go to the highest point (the filter and carb) but still at 6 lbs untill the bowl was empty enough to need more fuel. Once the needle opened the gasses were released allowing liquid fuel to rush into the filter and carb.
