Re: Series 23 Stalling

Posted by DavidPackard On 2018/10/17 22:57:36

Good input!
I believe I changed the hose when I changed the pump, but I can't find an entry in the book I keep reminding me on what I've worked on, or changed. So since I can't tell I'll install a new line and report back. Due to other commitments it may take me the better part of a month to update the topic thread.

Considering I had the same loss of fuel pressure symptom at the same street intersection on two different days with a 40 F difference in outside air temperature, and a 30 F difference in coolant temperature that does suggest that I'm not dealing with a phase change problem.

The E-pump was installed with a few neoprene lines, so I'll change out those also . . . . They might be quite old (I did not get the maintenance records when I bought the car). To turn this into a proper science experiment I'll change one line at a time.

To counter the Frost & French experience I do pressurize the hose to 3+ psi every time I prime the carburetor with the E-pump. There has never been the slightest hint of an overboard fuel leak. I guess the hose could be collapsing to an area that is quite restrictive and the E-pump pushes it back to an acceptable area. Why the damn thing only misbehaves early in a drive and more times than not on a turn may have to remain a mystery.

Thanks again for the input. The hose is at the top of the list of things to do.
dp