3000 DIESEL WAKE UP???

ZANE · Jun 23, 2015

Anybody got any good ideas to wake up a stuck injection pump plunger?

I read where some guy had introduced air pressure into the injector line back into the pump and got the plunghers moving again.

Tomorrow I am going to hook up my injector tester to the injector line and try to push the fluid backwards into the pump chambers while
turning the engine over. I can put up to 3000 pounds of pressure. Hoping this might move the stuck plungers.

Anybody ever tried this?

A long time ago I rigged up a grease gun with diesel fuel in it to increase the transfer pump pressure greatly to wake up the plungers and was
successful a few times but I don't have the fittings to try it that way this time???

Any ideas or anybody ever tried this?

Zane

Dieseltech · Jun 23, 2015

You might get lucky if it has not set too long. Most I repair need a complete tear down and cleaning as there will be more parts stuck than just plungers. If pressure regulator is stuck and you do get it started you'll risk seizing the head when the pressure gets too high. Metering valve may be stuck too, and if it has set with water or bio-fuel I've even seen the governor weights stuck in the cage.

Tequila · Jun 24, 2015

I agree with dieseltech , almost for sure the plunger is just one of the problems. My guess is to tear it down and fix the whole thing.

RodinNS · Jun 24, 2015

If it has a Simms pump all you're going to do is apply pressure against a delivery valve... If it were mine I think I'd take it off and send it to a pump repair shop. Probably be cheaper in the long run than buggering with it.

Rod

3000 DIESEL WAKE UP???

ZANE

Well-known Member

Dieseltech

Well-known Member

Tequila

Member

RodinNS

Well-known Member

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