Deuce clutch adjustment

[MDSA]

I am completely unaware of how to adjust my Deuce clutch. Every TM I’ve checked has no info on adjustment, only replacement. Can someone tell me which TM explains how to adjust a Deuce clutch? Thank you

 

[Mullaney]

I am completely unaware of how to adjust my Deuce clutch. Every TM I’ve checked has no info on adjustment, only replacement. Can someone tell me which TM explains how to adjust a Deuce clutch? Thank you

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Not a whole lot of adjustment to do other than to ensure that you have some "free play" in the linkage. Guessing there is a 5 speed manual in your truck?

Are you having some specific problem?

 

[MDSA]

The clutch engages right at the top. I read that there should be 1 1/2 to 2 inches of pedal before engagement. I assume it needs adjustment

 

[Mullaney]

The clutch engages right at the top. I read that there should be 1 1/2 to 2 inches of pedal before engagement. I assume it needs adjustment

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Yessir. Should be some free play in the "fork to rod" connection. Another thing to help confirm the need for adjustment is by looking inside the inspection plate in the clutch housing (bell housing). The throwout bearing should NOT be turning. If it is, the clutch isn't completely disengaged.

This picture from @HanksDeuce shows the clutch fork where the rod that connects to the peddle is. You should adjust by making that rod shorter. Don't mess with the nut and bolt that you see on the top left. That is a splined connection that should not need to be changed or adjusted.

 

[biscuitwhistler37]

I'm having the same problem, thought it was in the shifter shaft, took advice from @gringeltaube and drew the conclusion it wasn't. If nobody minds a little thread resurrection/hijacking I'm knee deep in going in through the top. So far aside from pedal play, measurements check out but I can't see well with the pto in the way (which now explains why the TM calls for removal). If I should start a new thread please let me know, any and all input appreciated

 

[biscuitwhistler37]

So far I've found this bar measures 14in centerline to centerline, supposed to be 14 3/4. Right around an inch and a half of pedal travel, pedal is set to maximum height through the floor. The orange line looks backwards to me according to the TM, maybe I just read it wrong. Onward we go.

 

[biscuitwhistler37]

Anyone have a guess as to what the rotational travel of the throwout lever is supposed to be? In the picture posted here of the pulled transmission it looks like it sits at rest at 11 o'clock, mine is sitting at rest with all linkages connected at about 12 o'clock, and the complete pedal motion moves the lever between a sixteenth and an eighth inch, seems like it should be more, but I can't find any data in the TMs.

 

[biscuitwhistler37]

So after measuring everything twice over with tapes and scales, all is adjusted properly, pretty sure I'm just an idiot with low transmission oil....... Then after checking, turns out I'm an idiot with too much transmission oil, or so I believe. I did the knuckle test and rather than having a drop on my finger like I've read you're supposed to have, I was wet all the way to my hand and it felt like the oil was right to the tippy top of the threads. Thinking I should drain the trans and refill with 80/90, as I've read that's what works best in my climate and apparently these transmissions are finicky about what oils they like, varying from straight 30 to 90/120. The oil in it appears to be very fresh 30wt, which worked fine with 20-40 degree air temp, but last time I drove it the air temp was over 60, and if the oil thinned out/foamed may explain the issues I was having. Curious to what you guys think though

 

[Adrok]

So after measuring everything twice over with tapes and scales, all is adjusted properly, pretty sure I'm just an idiot with low transmission oil....... Then after checking, turns out I'm an idiot with too much transmission oil, or so I believe. I did the knuckle test and rather than having a drop on my finger like I've read you're supposed to have, I was wet all the way to my hand and it felt like the oil was right to the tippy top of the threads. Thinking I should drain the trans and refill with 80/90, as I've read that's what works best in my climate and apparently these transmissions are finicky about what oils they like, varying from straight 30 to 90/120. The oil in it appears to be very fresh 30wt, which worked fine with 20-40 degree air temp, but last time I drove it the air temp was over 60, and if the oil thinned out/foamed may explain the issues I was having. Curious to what you guys think though

Appreciate the follow up. I learn a LOT more from members giving follow up and reflection. Especially when something goes wrong ( faulty part, improper installation ) or a new observation is made ( in this case ).
It is valued.

 

[fleetmech]

So after measuring everything twice over with tapes and scales, all is adjusted properly, pretty sure I'm just an idiot with low transmission oil....... Then after checking, turns out I'm an idiot with too much transmission oil, or so I believe. I did the knuckle test and rather than having a drop on my finger like I've read you're supposed to have, I was wet all the way to my hand and it felt like the oil was right to the tippy top of the threads. Thinking I should drain the trans and refill with 80/90, as I've read that's what works best in my climate and apparently these transmissions are finicky about what oils they like, varying from straight 30 to 90/120. The oil in it appears to be very fresh 30wt, which worked fine with 20-40 degree air temp, but last time I drove it the air temp was over 60, and if the oil thinned out/foamed may explain the issues I was having. Curious to what you guys think though

I switched my trans over to the 30nd and hated it. Definitely foamy/ aerated and had problems sticking in gear when fully up to temp. I dumped it immediately after the first drive and put in some 90wt gear oil since I had some. It's better, but I think I'm going to change it back to 80-90 this year. The army ran it that way for decades, and everything including the synchros was fine. I regret having messed with what worked.