pistonium
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Hi all - can someone let me know what to expect upon installing a new injection pump for getting the engine going again? Here are my questions - embedded in the story:
condemned old IP, was running pretty good except some unplanned acceleration problems.
had an IP that came on one of the GL takeouts from the Hummers when they went to 6.5's. This IP had a sticker on it saying it was from inventory in 2008, so I figured it should be OK. (are the parts on a hummer take out usually good? The whole engine was depot overhauled in 2001).
put the new IP into the truck. (what a job!) Pulled the return hose at the IP. Cranked many 15 second cranks. Got fuel through to the return hose from the pump, no problem, but I can't get any fuel to come of of the pipes at the injectors.
So how long does it take to prime the pipes to the injectors? I have a good lift pump and fuel filter was not a problem when I took it out of service a few days ago. Shut off solenoid on IP clicks on and off OK.
Any other ideas for me to try? I've got 6 injector pipes loose at the injectors, no fuel coming out at all....what should the pump pressure look like at an injector? Big flow or just a drop or two....?
Thanks -
condemned old IP, was running pretty good except some unplanned acceleration problems.
had an IP that came on one of the GL takeouts from the Hummers when they went to 6.5's. This IP had a sticker on it saying it was from inventory in 2008, so I figured it should be OK. (are the parts on a hummer take out usually good? The whole engine was depot overhauled in 2001).
put the new IP into the truck. (what a job!) Pulled the return hose at the IP. Cranked many 15 second cranks. Got fuel through to the return hose from the pump, no problem, but I can't get any fuel to come of of the pipes at the injectors.
So how long does it take to prime the pipes to the injectors? I have a good lift pump and fuel filter was not a problem when I took it out of service a few days ago. Shut off solenoid on IP clicks on and off OK.
Any other ideas for me to try? I've got 6 injector pipes loose at the injectors, no fuel coming out at all....what should the pump pressure look like at an injector? Big flow or just a drop or two....?
Thanks -