Shut-off shaft leaking

There is an o-ring on the shaft. I"m pretty sure it needs to be replaced; but the only way to do it is to remove the governor housing and press the shaft out.

If I lift the governer housing off, what exactly happens with the throttle shaft? I assume it lifts out also and I have to press it out. How difficult is it to reposition it correctly before replacing the governor housing? The manual mentions a special tool; I assume I will also need all the o-rings for the throttle shaft, as well as a new governor housing seal.

Anyone ever done this particular surgery?

I usually like to leave repairs like this to more experienced hands, but our local New Holland dealer is VERY busy ALL the time and keeps the tractor for weeks on a small job like this...

P/S clean the pump very good before removing cover.

I understand how the shut-off shaft must be positioned when re-assembling, how the pin must fit in the hook-eye on the shut-off bar. What I can"t find is a picture or discription of just how the throttle shaft nests into the governor housing. Can you please give me a brief description? How critical is the placement, and did you need the special tool Ford lists?

I have the shop manual, but this is written with the assumption the pump is being completely overhauled, so I have only the procedures for dismantling and remantling the pump. No procedure for removing the governer housing WITHOUT disturbing the throttle shaft, etc., more than absolutely necessary.

(You"ll be pleased to know that I carefully cleaned everything anywhere near the pump when I first started looking at the problem, it made it much more pleasant work finding the leak. And, I know what can happen if even a very little dirt gets in the injection pump.)

Fordfarmer, I"ll let this thread roll off into oblivion and come back here later with a follow-up.

I have learned one thing; the problem (right now) is much worse in cold weather. The other day I wanted to cultivate the orchard, and the air temp was about fifty-five degrees, real sunny, dry weather.

I keep my tractors in a garage, so the Ford had not yet been warmed by the sunlight; when I drove it out to the equipment yard and got ready to hook up, I noticed it was leaking a drop or two of Diesel every second.

Disgusted, I took the Ford back to the garage; but instead of parking it inside, I left it parked so the sun was hitting the pump. That way I at least stood half a chance of being able to see what I was doing.

After a couple of hours and some looking at the manual and other prep work, I went to start the tractor to garage it. Low and behold, the leak rate was only a drop every minute or two.

Curious, I touched the pump housing, which had been quite cool to the touch when I was examining it earlier, and found it slightly warm.

So, I did the orchard. The warmer the engine got, right up to the point where the thermostat opened and the temperature stabilized, the slower the pump leaked.

All this means, of course, I"m not about to dismantle the governer housing in March with so much to do and the weather getting warmer by the day; I think I"ll wait until everything"s laid by for the summer around here and the cooler weather impends.