Quote:
Originally Posted by joeblack
I bought an old wagon with a poor veggie conversion in it on ebay. Engine not running. The pump did squirt when the car was cranked over out of the injection lines with no injectors connected. The old injectors were coked up and plugged, The plungers in some of the injectors even scored. With proven good injectors this pump did not create enough pressure to crack them.
The next step would be to figure out what part in the IP is actually damaged.
Could you hook up a injector crack tester to each IP output and see if you have leakage / pressure drop?
Anybody tried that?
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Some suggestions.
The problem could be as simple as holes plugged or restricted in the Plunger and Barrels/Elements inside of the IP (Do Not Remove them it will change the fuel settings).
There is a feed hole in each Element where the fuel pressure from the Fuel Supply pump goes into. If these are blocked no fuel gets inside of the elements and no fuel gets injected out.
Perhaps filling the IP up with a solovent,B100,Marvel Mystery oil what ever is your favorite pumped through by way of the hand primer and let it soak for a week or so.
Another problem could be the IP Fuel Supply pump which I believe is supposed to put out 18psi. The 18psi is controlled by the Overflow valve on the side of the IP. This could also be clogged up.
You could also pull off some of the delivery valves and take a peek inside.