JCB 1400B Injector pump

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3crows
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JCB 1400B Injector pump

Post #1 by 3crows » Sat Jul 21, 2018 4:51 am

I've determined that the injector pump on my '89' JCB 1400B doesn't work. I've disconnected everything and tried to remove it but it only comes out about 3/16" and stops like there's something stopping/holding it from coming out from the inside. Any of you folks ever work on one of these machines?


agrimax
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Re: JCB 1400B Injector pump

Post #2 by agrimax » Sun Jul 22, 2018 1:29 am

That'll have a Perkins 4.236(T) fitted? Have you removed the 4 bolts and the plate on the front of the timing cover? Then the three bolts that hold the timing/drive gear onto the pump?
Did you check out if the gauze filter below the inlet pipe fitting on the pump is clear?


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3crows
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Re: JCB 1400B Injector pump

Post #3 by 3crows » Tue Jul 24, 2018 4:43 am

It does have 4 bolts on the cover but only 1 22mm nut holding the gear to the keyed shaft on the pump. The pump is a Lucas DPA3348F210. Gauze filter? No. Had to remove the radiator to get to the plate and the fan blades to get a puller in there. Now It's out and I need to find someone in Portland OR to rebuild it. Anyone have any recommendations?


agrimax
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Re: JCB 1400B Injector pump

Post #4 by agrimax » Tue Jul 24, 2018 9:31 am

Not the 4.236 engine then. Later 1004 series. I only mentioned the gauze as a lot overlook it and if it's blocked,no fuel gets through and can give the impression that the pump is at fault.


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