Problems with a L type fuel pump on my TD. The coil is operating, the
diaphragm is moving. If I put my thumb over the outlet orifice, the load
almost stalls the pump, which sounds normal. I cleaned the in line
filter. However, the pump is not delivering enough fuel to keep the
engine running at driving speeds. What could be the problem?
This is a Mk II TD with two in line fuel pumps. Since only one is needed
for driving (two were for competition), I have rewired the pumps so only
one is in line at a time. This way, with a switch, I have a spare ready
to put on line. My new fuel pump performs correctly, it's only when I
switch in the older one that the engine starves.
Any suggestions will be appreciated.
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