Fuel Injector pump leaking - The Combine Forum
 
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post #1 of 9 (permalink) Old 07-29-2010, 03:38 PM Thread Starter
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Fuel Injector pump leaking

On a 6 cylinder 354 Perkins. The fuel injector pump up by the engine is leaking where the throttle linkage goes into the unit. It leaks from around the shaft.

Is there an O-ring or seal in there that a guy has to replace?

Anyone have this issue and if so what's the easy fix.

Thx

Lloyd
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post #2 of 9 (permalink) Old 07-29-2010, 07:17 PM
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Re: Fuel Injector pump leaking

low sulfur fuel

I think seal gets changed from the inside
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post #3 of 9 (permalink) Old 07-30-2010, 04:37 AM
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Re: Fuel Injector pump leaking

If you search around over at Yesterdays Tractors, start at the MF section, you should run into some instructions on changing that leaky o-ring. That site is a little clunky so it might take a little work to find the info you need, but I know that it is there somewhere.

This is the best I could do in a minute:

http://forums.yesterdaystractors.com/vie....05570b0059


Good luck and let us know how you make out,
JP.
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post #4 of 9 (permalink) Old 08-01-2010, 10:13 PM
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Re: Fuel Injector pump leaking

go to local diesel shop & get a rebuilt throttle lever cover & seals & gasket & remove 2 nuts that hold cover to pump & the shut off mechanism will fall out of place & then the spring from the throttle likage to the pump will have to be taken off remembering the hole the spring goes on. this can be done on the engine as long as you are clean & careful not to drop things & remembering where things go. the throttle linkage wears into the aluminum housing over time & needs replaced.
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post #5 of 9 (permalink) Old 08-09-2010, 07:51 AM
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Re: Fuel Injector pump leaking

i'd take 2 pictures about this subject.



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post #6 of 9 (permalink) Old 08-09-2010, 05:24 PM
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Re: Fuel Injector pump leaking

that pump comes off and times up pretty easy maybe easiest to take it off and let diesel shop change them, sometimes springs can be fun to get hooked back up again, just make sure you mark the base of the pump before you loosen it.
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post #7 of 9 (permalink) Old 08-18-2010, 05:07 PM Thread Starter
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Re: Fuel Injector pump leaking

Okay! Just as you guys said, it was an easy fix. The part dude didn't even ask a question, as soon as we told him what our problem was he went and got the parts. It is fixed, doesn't leak.

Now we have a new problem. We changed the seals got it running and all was fine. Decided while we were up there, change the fuel filters. This combine is new to us and there was no record of last change. New filters on, all looks good. Runs for a few seconds and quits. Bleed the filters and pump again, won't fire. Bleed again, cranks for a bit, starts. Then when revved up, oil is puking all over the place, shut it down. It is coming out of the dipstick, crank is full of diesel.

What the heck did we do to cause that?

Lloyd
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post #8 of 9 (permalink) Old 08-18-2010, 08:23 PM
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Re: Fuel Injector pump leaking

3 ways fuel gets in oil; 1st the fuel lift pump (cheap fix), 2nd the injection pump shaft seals (remove pump & replace lower shaft seals), 3rd the injectors (unburned fuel)
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post #9 of 9 (permalink) Old 08-25-2010, 05:03 PM Thread Starter
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Re: Fuel Injector pump leaking

Replaced fuel lift pump, all is okay. Thanks to all for their input/advice.

Lloyd
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