Diagnosing Injection Pump Paralysis A Step-by-Step Guide

Bypass your current fuel supply, fully loosen injector lines and see if you get any squirting. ... Have someone crank the engine while you hold ... This website and forum is the property of Buggiesgonewild.com. No material may be taken or duplicated in part or full without prior written consent. Push a bottle of ATF or diesel purge through it. It might loosen the vanes up. You can run a higher pressure feed using the auxiliary fuel pump, ... I think whats happening here is the pump is going into prime mode.But the ECM is getting an incorrect start signal which is shutting down the ECM. Verify the air filter is new. Try advancing the pump on high-hour machines. If the problem doesn't change, then verify supply and fuel quality. If that is good, ... Try backing out the bolts on the pump side. If it works, then you'll need to pull the pump and make sure you didn't bend the push rod. Most smaller diesel engines operate on a CAV high-pressure fuel distributor pump, however in this case we are going to specify Perkins engines 4 ... New fuel pump installed, still not pumping gas. Fuel bowls are empty on carb. Took out the fuel pump rod and it measures 3 1/16 with a tape measure. The problem was the pump lost it's prime. Any air trapped in the lines or bowl would be pumped harmlessly back into the fuel tank through the ... A spinning pump doesn't mean you have fuel delivery. To confirm that you need to securely fit a fuel line onto the output nozzle and pass it to a jar then ...