Black dawg
Registered User
Any ideas on how that screw should be adjusted? I dont have any gauges to check pressure.
I dont know how to adjust it. On some pumps it preloads a small spring that affects the low speed gov, some pumps dont have that spring.
I would just get it close to where it was.
It sounds to me like the injection pump is having an advance piston problem.
with the engine idling, push the plunger in, the change should be pretty drastic.