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I need some help with injector pump

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Jrry

09-15-2007 08:51:54

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I am trying to remove the injector pump on my IH 684. I have all the bolts removed except one of two that attaches it to the chasis, the one in back between the pump and the engine I cannot get a wrench on it. I can feel the nut on it but there is no room to get a socket or end wrench in there. I have limited tools. Even if I could get a wrench on it there would not be any room to move it. The body of the pump prevents an extension for a socket. Any suggustions?

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Jrry

09-16-2007 04:59:09

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Re: I need some help with injector pump in reply to Jrry, 09-15-2007 08:51:54

thanks guys for the help. I'll try again this afternoon.

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Darrel Peterson

09-16-2007 02:06:15

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Re: I need some help with injector pump in reply to Jrry, 09-15-2007 08:51:54

snap on tools make some special wrenches for injecter pump service for IH and JD. also for JD starter service hope that helps you folks out

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Fromjb2

09-15-2007 18:20:55

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Re: I need some help with injector pump in reply to Jrry, 09-15-2007 08:51:54

Hi Jerry, I just use a box end wrench, can only turn a fraction at a time. Just wait until you try to put the washers and nut back on.

Thru the timing cover hole, DO NOT LOOSEN or REMOVE the 3 cap screws on the timing gear adjustment. Only remove the large nut on the injection pump drive shaft.
Be sure to accurately mark the location of the injection pump to the mounting plate so when you reinstall it the timing will be correct. Use an awl or something to put a scratch line on both.

When you reinstall the injection pump and the tractor will not start after bleeding & priming then the pump could be 180 degrees out of time so you will have to remove the injection pump again turn the shaft 1 rotation and reinstall. The injection pump only turns at 1/2 the speed of the engine so can be 180 degrees out of time when reinstalled.

Good Luck
JimB

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Redstovebolt

09-15-2007 16:25:50

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Re: I need some help with injector pump in reply to Jrry, 09-15-2007 08:51:54

Hey man,I feel for ya,I'm going through the same thing right now my self on an 826...I used a long extension and a swivel head 1/2 " socket...or find a "C" style hand wrench and grind the backside of the boxed head down...I just got my pump back from Midwest Diesel....Lee is the guy you want to talk to,very knowledgeable and gave me a good price.His number is 515-576-5501.... Good Luck,Tom

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minnesota red

09-15-2007 17:58:27

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Re: I need some help with injector pump in reply to Redstovebolt, 09-15-2007 16:25:50

see,once you talk to Lee you just never stray!
i agree from stock to performance he is the go to guy.

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