prolinews
New member
I've got a dead Belarus 250as, I replaced the booster pump ran great for a few minutes then died out . The mechanism inside the booster pump that makes it work was froze up. Put the new one on primed it up ran great for a few minutes. Before I could pump diesel all the way to the injectors now it's getting blocked at the injection pump. I'm gonna pull the injection pump and tear it down and see if it's something that can be unstuck and reassembled and put back in service. My concern is how do I mark the pump timing? If the pump is not salvageable gonna order a new one . Ive never pulled and have no idea how to set time on one?