Kent2255
Member
I just replaced the injection pump on a 1620 due to severe external leakage. We do not have a local pump repair shop so the decision was made to replace instead of repair. Engine started and ran fine but would leave a tractor sized puddle of fuel overnight. Removed and replaced pumps. Used the same shims on the new as what was on the original. Bled out the fuel system and started the engine. My issue is this, if you run at high rpm then pull the throttle back to the idle position the engine will die and then be very hard to start as if it ran out of fuel. I also notice some fluctuation in the rpms when raising them up and down slowly. Sorry for the long post but wanted to give all the info I could