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Please help....injector pump problems

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kevin espy

04-26-2000 20:01:18




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I have a 1968 ford diesel and it does not have a self priming pump. There is a plug near the top of the pump. I cant figure out how to get the air out of the pump to prime it. If you can help me prime the pump and then bleed the injectors, please reply to this message. Thanks a lot...




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Phil in MS

04-27-2000 14:47:17




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 Re: please help....injector pump problems in reply to kevin espy, 04-26-2000 20:01:18  
Kevin

In a post on one of the other boards you mentioned that this was your grandfather's tractor! Not knowing how long it's been since the tractor has run or when it was last serviced leads me to ask the following question. Has the tractor set up very long? One time I failed to change filters properly on my tractor and the pump froze and I had to have it rebuilt! Just a thought if you can't get the pump to prime!

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Richard (KS)

04-27-2000 07:23:04




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 Re: please help....injector pump problems in reply to kevin espy, 04-26-2000 20:01:18  
Not sure what style of pump you have but some of the rotary pumps can be a real pain to bleed completely. Do you have a fuel lift or transfer pump on this unit, or does it gravity feed from the tank? If it's got a transfer pump with a manual priming handle this would be the easiest way to build pressure in the supply system for bleeding. Start with the primary filter and work your way towards the pump, making sure you've got ALL the air out. You'll have fuel dripping everywhere but it'll wipe up. The plug you mention near the top of the pump sounds like it might be the bleed screw for the pump body. Once you think you've got all the air out of the pump you might want to crack the injector line unions and crank the engine with the fuel on until you've got fuel dripping there, then tighten the unions and try to start the engine. We've got a little 12V electric pump we rigged here at work that plugs in-line on engines without a transfer pump and this works great for bleeding. Also I've seen some in-line manual plunger pumps that can be added to a system and they work well, too. Good luck.

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