I am repairing my JD 4010's injection pump, the Stanadyne DBGVC 631--1AJ, and am pondering whether the parts are common among these Stanadynes, or whether there are various blade sets, seal kits, pilot tunes, etc. for these pumps.
More specifically, will the parts which jdemaris suggested back in August 2010 for a JDB431 pump on a JD 310A, fit my 4010's DBGVC 631?
The JDB part numbers determined for that pump were:
Blade Set 32768 $13.32
Valve 15830 $13
Pilot Tube 16320 $8.14
Rebuild Kit 24371 $13.39
Governor Metal 29111 $45.37
Can anyone confirm that these JDB numbers are the same numbers I would use on my DBGVC 631.
Also, I understand that the vanes or blades part #32768 is an upgrade of #20803 (Spaco 090528) for low-sulfur fuels. Is this correct? Will the #32768 substitute for the #20803? Any reason not to buy the #32768 instead of the #20803?
Same query for the seal kit #06886 - any reason to not buy that instead of kit #24371.
You can to the Deere parts website to verify some things - even though Deere no longer sells injection pump parts.
The JDB pump is a little newer then your DB pump. Off hand I don't remember exactly what is different, but you can tell pretty easy when you're looking at it.
For the rotary pump vanes, it goes like this. Old DB pumps used solid one-piece vanes made of a non-metal fiber material. They use a totally different all pot-metal end-cap (held on by four screws). I'm not sure if your DB pump has that style or not, but you can tell pretty easy just by looking in the Deere parts sheet, on-line. The newer setup uses two-piece steel vanes that are spring-loaded and self-adjusting. The end-cap for this set-up (also held by four screws) has a steel wear-plate that is separate. The low-lube,low-sulfur vanes will retrofit if you want. It's what the US Army uses now, and is that Stanadyne/Roosamaster calls their "arctic weather" kit. That because diesel fuel used in very cold temps is very low lube. The problem with low-lube fuels like kerosene, jet fuel, military fuel, and low sulfur fuel at the pump is - the sides of those metal vanes wear out, where they shuck back and forth. So, the special vanes are made of harder metal, and are a direct replacment for the standard spring-loaded vanes.
The front bushing, usually called a "pilot tube", is the same between both pumps. On some other make tractors, e.g. some Fords, the bushing is steel instead of brass. But, all the same with Deere.
The # 15830 is the same IF your pump had it orignally. Not all older DB pumps use a spring-loaded valve. Some have a vent-wire instead and sometimes have an extra bypass hose in the back. Again, not sure about the 2510 without looking it up.
The solid governor weight holder will fit the both, no problem.
If you can't tell what you're looking at at Deere parts, repost and I'll look.