Glen---If your engine feels like the rear wheels are "slipping in water"
glance at your tachometer to see if it shows an increase in rpm when
this takes place. If not, chances are that one of the SU's has a low
level in the float bowl.
Disconnect the main fuel line right before the carbs. Set the end of the
fuel line into a clean vessel and start the engine. If fuel comes
gushing out, chances are good the pump is OK. The pressure of 1.5 to 2
psi. is enough to sustain the rpms up to red line. If you are getting
less than this pressure, you'll want to check that the filter is clean
enough. (There will be enough fuel to run the engine for a half minute
or so during these tests). The priming pump is not a good check.
Is this a new problem, or is it possible that the SU's are from an
engine that didn't require the fuel flow necessary for the 2500? (As in
the wrong needles)
Dick T.
L.A., Ca.
|