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Wayne, Journeyman
Category: Medium and Heavy Trucks
Satisfied Customers: 8256
Experience:  worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling
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I have a 1998 massey 8780 combine with a 8.3 cummins motor

Customer Question

I have a 1998 massey 8780 combine with a 8.3 cummins motor with a p7100 injector pump mechanical control. I have added a large straw chopper to combine which is robbing about 20 hp and was wanting to turn up fuel pump to compensate. Looks like there is a locknut over an adjusting screw under the cover on pump, which way to turn up and how many turns correspond with increased power amount? thanks
Submitted: 5 months ago.
Category: Medium and Heavy Trucks
Expert:  Wayne replied 5 months ago.
Hi I'm Wayne I will help you with this turn the screw in 1/2 turn at a time and drive it , Too much you will burn pistons I hope this helped you Hi If this helped you Please remember to rate my answer 3 or more starsIf more info is needed, use the reply buttonNOT THE POOR/BAD SERVICE
Expert:  Wayne replied 5 months ago.
Hi Just following up with you did my answer help you let me know , please Wayne

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