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how should a Farmall H run?

B

bgarrett

Member
I havent operated my grandfathers H for 43 years
so I have forgotten how it ran before
I started it up recently.
I had rotated the engine frequently over the years and had put diesel down the sparkplug holes and down the exhaust manifold
so I wasnt surprized that it runs well

It runs smooth and steady
but shouldnt the engine speed up when it goes under load?

I took the cover off the governor and everything is hooked up properly and all the parts move freely.
Thanks!
 
Thank you Allan
When I go up a slope the engine speed slows down.
The governor is not "maintaining" my RPM
Any suggestions as to the cause?
 
If the throttle (lever at top of steering support)works to change the speed, then it should maintain the speed as needed. If it does nothing, I suspect the throttle shaft might be stick, or similar hung up linkage. JimN
 
My Dad always said that the H had a lazy governor. I think that he is right, the governor on my H is not very snappy.

It is possible that some of the pivots are worn. Possible but not too likely. Do the moving parts fit well on the shafts ? It could be miss/mal adjusted, after 60 years a lot can happen.

Does your tractor try at all to maintain the engine rpm when the load increases ?

Good for you keeping the motor free for all this time.

Greg
 
How long a slope? Ms and Hs had a poor govenor there were at least two companies that made "improvement" kits for those govenors. Could be sticky linkage, fuel delivery problems. Maybe dump a quart of ATF in the crankcase, or put it on a load that you could vary (disc or bush hog) by raising or lowering and see if it responds.
 
Of the tractors of that era, the Allis had the quickest govenor (go to a carnival and enjoy the CE engines), Oliver next,but they also had 6 cylinders, JD was smooth but alot of it was because of the 1-2 coast firing order, and IH poorest. There were at least two companies making "improvement" kits.
 
Was thinking about this some more... pull the side cover off the governor (about six or eight bolts) and watch while someone moves the throttle lever back and forth (engine off, of course) and see what moves. There should be the lever going into the governor from the throttle moving, and a shaft moving/turning that goes back to the carburetor.

If there aren't parts moving in there with the throttle, you have stuck linkage.

If those parts move, then inspect the pieces in there to see if anything is loose or broken.

I had trouble with my W-9 governor being sluggish and then going to full throttle suddenly - took it apart and the bearing fell apart as soon as I tipped it sideways!
 
I suspect I need to take it apart and clean and inspect each part closely.
All the hand throttle parts work well, I welded and filed the worn notches
There is 68 years of slop worn in which I look forward to repairing.
 
All the parts are connected properly and move freely
moving the hand throttle while running causes the engine to speed up and the weights move out
 
All the parts are connected properly and move freely.

Moving the hand throttle while running causes the engine to speed up and the weights move out
 

Weak, broken, or missing springs, maybe?

Have you checked the compression? The engine may simply be worn out and can't develop enough power to move even itself around.

A governor will TRY to maintain RPM, but if the power requirements exceed the power output of the engine, RPMs will drop. Going up a slope at an idle, you probably won't be able to detect the governor working. Drop the plow into the ground as you're traveling along at wide-open throttle in 2nd, you'll hear the tractor "hunker down" and "grunt" as the governor opens the throttle in response to the load. RPMs will drop slightly under any load, as governors are not that accurate.
 
(quoted from post at 21:25:48 06/07/08) All the parts are connected properly and move freely.

Moving the hand throttle while running causes the engine to speed up and the weights move out
Click to expand...

Then it sounds like it is at least working somewhat...
 
a h only has about 25 hp at the draw bar. depending on the slope grade and what gear you're in the govenor cannot compensate for the horsepower. the engine will just bog down unless you downshift.
 
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