late 70's Case 680C backhoe injector service and bleeding q's


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late 70's Case 680C backhoe injector service and bleeding q's

Tim Pulled my injectors to have them cleaned-before I take them apart-wanted to make sure I can do this myself. Do I need them to be flow tested after I take out the spring, seat and pin? Or-can I adjust them myself? Looks like there is alot of carbon build-up at the tips.


Also-any tips on pre-bleeding as I re-install. I have had serious problems with getting all teh air out upon start-up. I bleed ai the pump, injector lines off the fuel pump, at teh injectors and return lines to make sure there is fuel after it sits for a while-and it always ends up being a 2 day struggle between recharging batteries and bleeding. I replaces all teh return line seals and the primer-and teh fuel delivery system appears to be tight now. When disconnected at the injector-it will squirt a small amount of fuel when cranking-re-connect and no start (most of the). Is there any standard method for bleeding as far as where, when and what order-and whether I should be priming it in between steps?

Thanks
~TIM~

AJ Unless you have a injector pressure setting gauge it is pointless you opening the injectors as you cannot reset them without the equipment,there will be no bleeding required if you are only removing/replacing the injectors,
AJ



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