Posted by jdemaris on October 17, 2013 at 16:31:18 from (70.192.3.237):
In Reply to: Re: fuel injection pump posted by joseph h moore on October 17, 2013 at 15:18:41:
Those pumps that come without electric shut-offs use either a two-lever or one-lever system. Two lever has one for throttle and the other for shut-off. Single lever has shut-off and throttle on the same control. Either way - there is a small push-on clip on the throttle-shaft inside the pump that makes the pump shut off by forcing the metering valve closed. Inside the pump - the only thing that can go wrong with it is . . . it can fall off. If it DOES fall off the pump will be always on and will not shut off. Not the converse.
If the pump won't pump fuel - I'd check the internal shaft and make sure it hasn't snapped in two, then check the position of the metering valve inside the pump. That is the valve that MUST be in run position for the pump to pump fuel. Very easy to get to. Just take the three bolts off the top of the pump, lift off the cover and it's right there. You can move it back and forth with your finger.
In regard to the injector lines getting "air locked." In theory, it's impossible with a good working Stanadyne pump. It is self-bleeding by design.
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