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Model B Stiff Rotation
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TL73 View Drop Down
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Joined: 13 Apr 2026
Location: North MS
Points: 13 		Post Options Post Options   Thanks (0) Thanks(0)   Quote TL73 Quote  Post ReplyReply Direct Link To This Post Topic: Model B Stiff Rotation
    Posted: 22 hours 10 minutes ago at 10:23am
This tractor is a 38 and as you know hand crank only. Complete tractor was restored probably 15 years ago and has seen little use. To me, the hand crank seems much harder than expected. Even with the spark plugs removed the rotating assembly feels like it's way too tight. Even cranking it over with no sparks plugs shakes the entire tractor. I've seen people who can turn their engine over by rotating the cooling fan with the plugs removed. There is absolutely no way I could rotate this engine by turning the cooling fan. Is this normal?
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Eric B View Drop Down
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Joined: 09 Feb 2012
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Points: 1014 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Eric B Quote  Post ReplyReply Direct Link To This Post Posted: 19 hours 39 minutes ago at 12:54pm
How have you tried disengaging the clutch turning the engine over? If there is no difference you may have to remove the oil pan and plastigauge the bearings. I definitely this was the case with one B where the bearings were too tight, with correct clearances the problem was fixed and the engine turned over easy. 
Currently- WD,WC,3WF's,2 D14's B. Previously- I 600,TL745,200,FL9,FR12,H3,816 LBH. Earth has no sorrow that Heaven cannot heal!
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did the tractor run after the rebuild ???  Has it been setting for a while ???

You could have some rust on the liners / pistons / rings causing things to drag.. If you KNOW the engine ran good at one time, i would put some penetrant or oil acetone mixture in each cylinder and let it set for a day or two.. Crank the engine over and push this out the spark plug hole... If it seems to help, you could drag the tractor around with the truck with the spark plugs OUT and in gear.... should loosen things up..


Edited by steve(ill) - 19 hours 25 minutes ago at 1:08pm
Like them all, but love the "B"s.
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Points: 13 		Post Options Post Options   Thanks (0) Thanks(0)   Quote TL73 Quote  Post ReplyReply Direct Link To This Post Posted: 12 hours 3 minutes ago at 8:30pm
Originally posted by Eric B Eric B wrote:

How have you tried disengaging the clutch turning the engine over? If there is no difference you may have to remove the oil pan and plastigauge the bearings. I definitely this was the case with one B where the bearings were too tight, with correct clearances the problem was fixed and the engine turned over easy. 

This is what's odd to me. I'd been turning it over by hand with the clutch disengaged. I released the pedal lock and tried it with the clutch ENGAGED and it turned over easier. Maybe I'm missing something but I can't understand how the engine turns over easier with the clutch engaged. It's still stiff but significantly easier than before.
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Joined: 13 Apr 2026
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Points: 13 		Post Options Post Options   Thanks (0) Thanks(0)   Quote TL73 Quote  Post ReplyReply Direct Link To This Post Posted: 11 hours 60 minutes ago at 8:33pm
Originally posted by steve(ill) steve(ill) wrote:

did the tractor run after the rebuild ???  Has it been setting for a while ???

You could have some rust on the liners / pistons / rings causing things to drag.. If you KNOW the engine ran good at one time, i would put some penetrant or oil acetone mixture in each cylinder and let it set for a day or two.. Crank the engine over and push this out the spark plug hole... If it seems to help, you could drag the tractor around with the truck with the spark plugs OUT and in gear.... should loosen things up..

Yes, the tractor runs pretty good; we've been pulling it off until I can figure out why the hand crank is so stiff.


Edited by TL73 - 11 hours 58 minutes ago at 8:35pm
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Originally posted by TL73 TL73 wrote:

... I released the pedal lock and tried it with the clutch ENGAGED and it turned over easier. Maybe I'm missing something but I can't understand how the engine turns over easier with the clutch engaged. It's still stiff but significantly easier than before.

Originally posted by TL73 TL73 wrote:

Complete tractor was restored probably 15 years ago and has seen little use.
Could the throwout bearing be dragging on the bearing carrier? Is the linkage properly adjusted?
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Could the bell housing be full of a mouse house? 
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Points: 13 		Post Options Post Options   Thanks (0) Thanks(0)   Quote TL73 Quote  Post ReplyReply Direct Link To This Post Posted: 2 hours 20 minutes ago at 6:13am
Originally posted by Les Kerf Les Kerf wrote:

Originally posted by TL73 TL73 wrote:

... I released the pedal lock and tried it with the clutch ENGAGED and it turned over easier. Maybe I'm missing something but I can't understand how the engine turns over easier with the clutch engaged. It's still stiff but significantly easier than before.

Originally posted by TL73 TL73 wrote:

Complete tractor was restored probably 15 years ago and has seen little use.
Could the throwout bearing be dragging on the bearing carrier? Is the linkage properly adjusted?


I'm checking that this morning and I will let you know.
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Points: 13 		Post Options Post Options   Thanks (0) Thanks(0)   Quote TL73 Quote  Post ReplyReply Direct Link To This Post Posted: 2 hours 20 minutes ago at 6:13am
Originally posted by Phil48ACWC Phil48ACWC wrote:

Could the bell housing be full of a mouse house? 

I'll check that out this morning.
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Points: 91064 		Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 26 minutes ago at 8:07am
dont push in the clutch... leave the tractor in neutral... check the PTO lever is DOWN and not engaged during cranking..
Like them all, but love the "B"s.
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Points: 13 		Post Options Post Options   Thanks (0) Thanks(0)   Quote TL73 Quote  Post ReplyReply Direct Link To This Post Posted: 2 minutes ago at 8:31am
Originally posted by steve(ill) steve(ill) wrote:

dont push in the clutch... leave the tractor in neutral... check the PTO lever is DOWN and not engaged during cranking..

So, I'm assuming with the clutch depressed, it's causing additional friction which is why it makes it harder to crank over by hand?
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