Robert Allen writes, after lots of good information regarding fuel
pumps, and the safety issues of changing one:
> Don't get sucked into the 'fuel pressure' debate. Noramal SU carbs only
> want 3 - 4 pounds of pressure at the carb. Most 'universal fuel pumps'
> want to pump out about 7 pounds. Dont fret. The pump delivers 7 pounds
> to its outlet which is down behind the right rear tire. It eases to
> around 4 pounds by the time it snakes its way forward and up to the
> carbs.
"Don't fret" my butt.
I, as they say, have been there, I have done that, and I have the brand
new S.U. fuel pump to show for it.
When I got my 'B, it had an aftermarket ("Walbro", non-adjustable
pressure) fuel pump on it, which caused all kinds of carb flooding
problems.
Naturally, when I got my 'B, I didn't know very much about how it
worked. So, when I saw gas pouring out of the anti-runon solenoid, I
ordered a new solenoid. Duh. When that didn't fix the problem, I had
the carbs rebuilt and professionally adjusted. After a week without my
car and a couple of hundred dollar bills, the problem wasn't fixed.
Duh. I bought Grose Jets, which didn't help. Duh. After having
changed everything else, I ordered a brand-new S.U. pump out of
exasperation. That was four years ago, and it hasn't missed a beat
since.
S.U. carbs need an S.U. pump, and that's that.
--
Todd Mullins
Todd.Mullins@nrlssc.navy.mil On the lovely Mississippi (USA) Coast
'74 MGB Tourer with a healthy fuel system
(witty quote here)
|