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jdemaris
02-12-2006 10:32:49
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Re: JD 1010 crawler-hard to start in reply to Brad T, 02-12-2006 09:29:15
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The primer-pump gets its fuel from a tee-fitting that's fastened to the sediment bowl assembly where fuel comes from the tank - i.e. the primer gets the fuel before it passes through the sediment bowl. Deere used several different makes of primers - Kohler and Pierce, so parts differ. If you can find o-rings to fit, it'll be fine as long as the check valve is functional. The primer is very important for cold starting on 1010 and 2010 diesels. If you want to check the glow plugs, just hook and amp-meter in line with each one when engergized. Each one will draw current when working, if no current - no d*mn good. In reference to the injector nozzles and precombustion chambers, fooling around with them probably won't make ANY difference in starting if it is now running okay once warm. If the present injectors are worn, and chambers dirty, and you work on them, you might eliminate some smoke and get a little more power, but that's about it. I've worked on 1010s with injectors that barely atomized fuel at all, but replacing them had NO affect on cold starting. You need to ascertain the age and serial number of the crawler, there were many different injectors used. The early ones became unavailable back in the 70s and could not be serviced. They can be updated, however - but with many - they can be taken apart, cleaned and lapped, and made to work okay. Early 1010s have the gear-shifter in the dashboard - up to ser. # 21900. Pump timing and fuel delivery at cranking speed have a big effect on cold starting. The latter though - cranking fuel delivery can be offset by a good working hand-primer. The plastic timing window can be bought from any good diesel dealer or maybe still at Deere (not sure about that anymore). Part #13366 with Deere, or Stanadyne/Roosamaster. Before you try to mess with the pump, you have to find out what it is. Deere had several updates for 1010 and 2010 pumps, so you can't just go by the serial number. You need the tag number off the pump and a visual inspection of the advance-piston area. Some have load-advance, some centrifugal advance, some have a torque-screw - and you need to know all this. It could be a DBGVC429-1AJ, DBGVC429-3A or DBGVC429-1DH. Some of the early pumps had timing-advance conversion kits put on them (Deere part # AT16228T). Generally speaking, the static advance greatly affects cold starting. If you find that loosening and rotating the pump a bit (when not running), one way or the other, makes it start better - fine - do it and leave it. We had to do it sometimes with brand-new machines. The advance will mostly affect higher RPMs and the engine will break-up, skip, and smoke if it's too retarded.
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