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JD 2010 Injector pump timing

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Rick

03-13-2003 05:32:08




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HELP! We did an in-frame rebuild of a 2010 backhoe and now we can't get the injector timed!If you line up the flywheel timing marks, install the oil pump and install the injector pump the timing mark on the injector pump is way too retarded and the motor will barely run with the pump advanced all the way to the stop. If you advance the pump gear one tooth the timing mark is way too far advanced and the injector pump has to be fully retarded for the motor to run.What am I doing wrong? I've been a mechanic for 26 years, but this #^^%$^%&$# has me banging my head on the wall! SOMEBODY PLEASE RESCUE ME!!!!! !

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JD COX

10-12-2003 06:58:43




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 Re: JD 2010 Injector pump timing in reply to Rick , 03-13-2003 05:32:08  
I AM HAVING THE SAME PROBLEM, THE ENGINE RUNS BUT THE SMOKE IS VERY BAD IF ANY ONE HAS ANY SUJESTIONS PLEASE CONTACT ME!.



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HTR

03-13-2003 17:46:48




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 Re: JD 2010 Injector pump timing in reply to Rick , 03-13-2003 05:32:08  
Pull the injection pump drive shaft out of the pump, and see if the shaft dot is aligned with the dot on the slot of the rotor shaft. If it is not, install the shaft dot to dot. You will then have to rotate the oil pump gear 180 degrees to get the off set tang to engage the slot while the timing marks are lined up. If the dots are together, reinstall the shaft with the dots on opposite sides, rotate the oil pump 180 degrees so the tang will engage the slot and see if it makes a difference. This might or might not make a half tooth difference.

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Ray

03-13-2003 17:29:40




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 Re: JD 2010 Injector pump timing in reply to Rick , 03-13-2003 05:32:08  
I had one that ran 180 out I found that there was a dot on end of pump shaft that wasnt lined with dot on oil pumpputting me 180 out



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Rusty

03-13-2003 06:38:04




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 Re: JD 2010 Injector pump timing in reply to Rick , 03-13-2003 05:32:08  
I assume you had to pull the pump, in order to pull the oil pump, otherwise there would have been no need to remove the pump? Just asking, next have you tried to get #1 on TDC Compression? Sounds to me like you have the engine 180 degrees out. Check that, you may have already. If all that is good, you should line up and run. If not you are missing something somewhere. Good Luck,
Rusty



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DON

03-13-2003 13:47:22




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 Re: Re: JD 2010 Injector pump timing in reply to Rusty, 03-13-2003 06:38:04  
I WILL ADD ONE THING TO RUSTY'S COMITT. THAT PUMP ON A 2010 IS A "LOAD ADVANCE" NOT "SPEED ADVANCE" ON THE TRIMMER SCREW. I BAILED OUT THE LOCAL DEALER A FEW YEARS AGO ON A $7000.00 TUNE UP THAT WOULDN'T RUN RIGHT. THEY FOUGHT THAT FOR A YEAR. HOPE THIS HELPS.



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Rick

03-13-2003 16:32:45




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 Re: Re: Re: JD 2010 Injector pump timing in reply to DON, 03-13-2003 13:47:22  
When we were replacing the crankshaft bearings we had to remove the oil pump. We didn't know the gear was made on the oil pump shaft, instead of the injector pump shaft. I have removed the valve cover and the no. 1 injector nozzle to make sure no. 1 piston was TDC.There is a small plate on the side of the inj. pump where the timing marks are, and no matter how I try I can't get them to line up. I am considering dynamite!

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