Re: 37, 120 carb percolation problems

Posted by rvsls On 2012/8/4 11:37:54

Again, thanks for all the advise! I am trying them all. As for the float, it was dry when I rebuilt the carb a couple of months ago so I do not think is has a hole.

If the float was sinking and the bowl filling up, you would think that the easiest way out for the fuel excess would be the vent. The fact that I got a spray of fuel would suggest that the trapped fuel was under pressure which might suggest that the fuel was coming from the accelerator pump?

If the fuel was caused by say a vapor bubble in the fuel line to the carb, again I would think the fuel would have been released through the vent not the venturi? I will try the brick on the accelerator pedal suggestion!

I checked the carb at least three times during the test drive and I had no overflow problems until I arrived home. The car has to pull a pretty good grade getting to the house and I had to turn on the elect pump to keep from vapor locking the last 1/4 mile. So, the problem might have something to do with the pressured fuel line when I shut the car down?

Thanks again for all your support,

Rod