3010 Slow Throttle Response

[mtntex]

I bought a 1963 3010 diesel last week and it runs very good, quiet, smooth, little to no smoke, starts right up and goes directly to a steady rpm. The only problem is, it is slow to throttle up.

I have talked to several fuel injection rebuilders and several diesel mechanics. One said it is the fuel injection pump (regulator in the fuel injection pump or the governor ring may be going away) and another said it may be the injection pump timing is slow or the supply/lift pump and/or filters need changing.

The fuel cutoff cable is froze up at about the half extended position and I am wondering if this may have something to do with the problem.

So before I start looking into a fix, can anyone offer any advice.

Thanks,

Mtntex

 

[Jim_Fisher]

I bought a 1963 3010 diesel last week and it runs very good, quiet, smooth, little to no smoke, starts right up and goes directly to a steady rpm. The only problem is, it is slow to throttle up.

I have talked to several fuel injection rebuilders and several diesel mechanics. One said it is the fuel injection pump (regulator in the fuel injection pump or the governor ring may be going away) and another said it may be the injection pump timing is slow or the supply/lift pump and/or filters need changing.

The fuel cutoff cable is froze up at about the half extended position and I am wondering if this may have something to do with the problem.

So before I start looking into a fix, can anyone offer any advice.

Thanks,

Mtntex

Mtntex,

I have an earlier 3010 diesel, a 1961.

I think that I would address the fuel cutoff cable first. Slip it off and give it a good soak in your favorite penetrating oil.

Next, check the throttle linkage to make sure that nothing is binding. The linkage is a bit complicated in the way that it integrates with the foot throttle. You'll see when you remove the front panel (pay attention to the wiring - you might want to disconnect the batteries to be on the safe side).

Next, make sure that the fuel filter or filters (mine has been converted to a single Stanadyne glass filter but yours may have the original two canisters) are fresh and also service the oil bath air cleaner.

Not sure how to test the lift pump, but I suspect that it will either leak through a blow hole (externally) or into the crankcase if it is bad. Check the engine oil and note any overfill condition or the odor of raw fuel.

If the problem persists, the next step is to check the governor ring. Do a search on the John Deere board at ytmag.com. There are a number of posts that describe the procedure in detail. There is a plate on the side of the injector pump that must be removed and the very knowledgeable folks there usually recommend that you also check the return line for clogs when a governor ring problem arises.

I would change the timing only as a last resort, since the tractor starts and runs good.

Hope this helps.