[AT] Ford 1841 fuel problem

[Lew Best]

Yeah I'm going to try that propane trick & also clean the carb out again.
Off to Napa (may take a day or 2 to get a kit) but that's the next step.  No
change in the situation when I replaced the manifold (IOW problem started
before I changed it) so we'll see what happens.

Stay tuned!  :)

Lew near Waco, TX


-----Original Message-----

My "trick" for locating a vacuum leak is to start the engine and run the 
head of an unlit propane torch, with the valve cracked open, slowly 
around the various parts of the intake system. The vacuum will suck the 
raw propane into the combustion chambers, and the engine will speed up 
momentarily. You have to move slowly because it takes a couple of 
seconds for the stuff to get from the carburetor to the combustion chambers.

A couple of thoughts on your problem:

1. when you say that you "cleaned the carburetor", did you completely 
disassemble it and ream out ALL of the jets? The crap they are selling 
for gas these days doesn't hold up in storage and leaves all kinds of 
crud inside carburetors.

2. likewise, the quality of some of the replacement manifolds coming in 
from the Far East these days varies considerably. It is not unusual to 
find surfaces that are not flat or pinholes in welds. You might have to 
pull your new manifold and check both the block and carburetor surfaces 
with a straight edge.

Good luck,

Mike