Won't start without tapping on the inj pump
#1
Won't start without tapping on the inj pump
I just bought my first Cummins, it is a 93 model and I got it for a song because the previous owner was having problems getting it to start. I figured out that when I tap on the injection pump with a wrench it will fire right up. If you don’t give it a tap then it will just spin over and never start. I figured it was probably the stop solenoid so I gutted it and still it won’t start without a tap or two on the injection pump. When it does start it runs great. It seems like there is a valve stuck in the pump but I am not sure where to look.
I am planning on transplanting the Cummins into my Chevy dually after I get all the bugs worked out of it. Thanks
I am planning on transplanting the Cummins into my Chevy dually after I get all the bugs worked out of it. Thanks
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"Full rebuild" is pump shop lingo for "we'll fix it". They operate on a one-cost-fits-all approach.
I guess they're thinking that the springs aren't returning the plunger, which would probably be more due to varnishing on the plunger than weakness of the springs. Return springs like to cause stall issues and crappy running issues as well as no start issues.
I guess they're thinking that the springs aren't returning the plunger, which would probably be more due to varnishing on the plunger than weakness of the springs. Return springs like to cause stall issues and crappy running issues as well as no start issues.
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