Clutch problem

[Hooty481]

1970 m818 4200 miles since government rebuild or paint job not sure. Any way I've put over 2000 miles on it since I picked it up not many. I was driving today and went to get a load of wood with my m101 trailer. Got to noticing that it was hard to get into gear while setting still. So anyway some how it managed to go in and I wasn't a mile from home. So I drove it on in which I didn't need the clutch after I got going. Got home and was manuvering in the field and it would not go into gear from a dead stop so I was having to shut it down put it in gear and then restart the truck. Got unloaded and headed out of the field. Called on my wife to get in the truck to push the clutch and let me look at the linkage. Didn't see anything wright with the linkage after 5 minutes of her pushing the clutch and releasing it. The clutch would only release or more less move about 2 inches wich was the bottom 2 inches on the pedal. I removed the inspections on the bottom drivers side of the transmission. Shined my light up in there and noticed there was some metal that looked like it was chewed up. Had my wife work the clutch pedal some more while I was looking and scratching my head wondering exactly what wasn't right in there. I thought to my self maybe it's the throw out bearing or pressure plate. Called memphis equipment and got prices on both 261 for pressure plate plus core and 125 for throw out bearing. I though not bad price. Called one truck shop and got a ballpark figure of 750 for labor. Wasn't real happy with that so gonna get some more prices. Might even do I my self.

Anybody body have any other ideas or tips as to getting the transmission in and out. I know there's a lift made just for this if anybody has one that's close to south central Ky ad would loan or rent it would be great.

 

[doghead]

I think Gimpy has one of those lifts, and he'll sell anything. Send him a pm.

 

[73m819]

I used a pipe though the front window and the rear window, hung a come-a-long, and a another come-a-long up up under the truck to pull the trans back, worked great for me

 

[Hooty481]

Might try to make one shouldn't be to hard. Anybody else had any trouble like This with their truck?

 

[gimpyrobb]

I'm pretty sure I got one.

Your issue sounds to me like maybe a lever on the PP broke, so it doesn't fully let go of the clutch. It is a common problem with the deuces that are not adjusted right. Even happened to me.

 

[Hooty481]

Gimpy there was something that was chewed up in clutch area when I start it in gear I can push the clutch in and stop the vehicle. But if I want to go to neutral and then back in a gear when I am setting still it won't go. That makes me think it is the throw out bearing

 

[gimpyrobb]

I bet either you or I are right!

 

[Hooty481]

Will It require pulling the tranny if it's what you say it is?

 

[73m819]

yes

 

[gimpyrobb]

Yup, new bearing or PP requires dropping the trans. Sorry.

 

[augiedoggy]

Could the pilot bearing be bad? My experience tells me, chewed up metal is bad !
Chain hoist works well for lifting trans or transfer case.

 

[mckeeranger]

We had the throw out bearing go out on our XM817. We used an engine hoist and passed it through the passenger door.

That tranny is one heavy piece of metal.

 

[Floridianson]

Might try to make one shouldn't be to hard. Anybody else had any trouble like This with their truck?

Yes when the return spring is missing or the freeplay is incorrect on the throwout bearing. Eather will allow the bearing to burn up then chew up the fingers on the pressure plate.

 

[gimpyrobb]

Could be...

anything.


Till the trans comes out, its all guess work!

 

[Floridianson]

I believe the best thing to do with the TOB is to drop the inspection cover at a milage you feel is good. Me maybe after the first new clutch job make shure it's not spinning then 400 miles more and see if the TOB is spinning when running. Adjust if needed. then maybe 800 to 1000 miles drop inspection cover and look for spin. These TOB suck when they spin to long.

 

[mckeeranger]

I believe the best thing to do with these TOB is to drop the inspection cover at a milage you feel is good. Me maybe after the first new clutch job make shure it's not spinning then 400 miles more and see if the TOB is spinning when running. Adjust if needed. then maybe 800 to 1000 miles drop inspection cover and look for spin. These TOB suck when they spin to long.

And don't ride the clutch. Ever.

 

[KsM715]

Be careful, that trans weighs somewhere around 700lbs.

 

[70deuce]

Check out this post. I had the same problem and it was the throwout bearing as shown in the pics. The military tunnel hoist I used as shown in the pics made it very easy. I had the trans down on some blocks, replaced the throwout bearing and had it bolted back together in about 3.5 hours. Hardest part was getting the clutch disc aligned with the trans input shaft.

http://www.steelsoldiers.com/5-ton-up/34069-m818-throwout-bearing-failure-bigtime.html

 

[Hooty481]

I got my trans out and the throwout bearing was shot. Little balls all over in the bell housing. Got q new one ordered from Memphis equipment bearing and collar 125 bucks. Measured the thickness of the clutch and right on what a new one would be. Pressure plate looked good. I just used a transmission jack to lower it. Where would one get and alignment tool for this application. I will be installing a new pilot raring as well as mine was run dry of grease. So I know it will be kinda hard to get the clutch aligned back with the transmission. Will try for some pictures in a little bit.

 

[73m819]

I bought my clutch alignement tool from a napa truck shop