Re: Carburetor Question Carter WA-1

Posted by Packard Don On 2018/7/8 14:55:05

You've done all the right things even if the order of doing them was a bit off. In spite the fuel system being so clean, it still would not hurt to follow another poster's suggestion to use a temporary fuel source connected directly to the carburetor to absolutely and positively eliminate any unknown or missed problems. I would also go back to the well-engineered stock fuel lines and pump even if the electric pump is kept as backup.

However, that it is happening when you go uphill is a relatively major clue itself. In 1953 when the 4-brl carburetor first appeared, it tended to stall when going around a corner but only in one direction. It was flooding momentarily when the fuel sloshed up and hit an area where it was somehow being sucked into the system where the gasket did not have much of a seal. The simple fix was a small tube inserted that went between the lower and upper housings to block the area!

This was Carter too and maybe not the same exact problem as yours but I suspect something similar is happening with yours. For example, maybe the little springs that hold the floats down (if it uses them) are weak or poorly designed or something else causing inconsistent fuel flow is happening.

Replacing the carburetor three times with the same type doesn't mean that there isn't some design flaw so perhaps someone can loan you an original Stromberg to see if the problem goes away! I have one but unfortunately it's apart and hundreds of miles away or I would be happy to loan it.

Incidentally, I doubt very much that it is anything internal to the engine or even anything serious at all. In fact, I love challenging problems like this and wish I were closer to assist!