Identifying my clutch

[Joey Mack]

2" input shaft

[Nathanwhit1]

3 minutes ago, Joey Mack said:

2" input shaft

Sound thanks been told there was two sizes 

[Nathanwhit1]

49 minutes ago, Geoff Weeks said:

My guess is a 14" Spicer, if it is what Joey Mack posted. Same clutch that Vlad was installing in the this post, and a VERY common clutch.

A 15.5 has a flat flywheel and the cover goes over and surrounds the intermediate drive plate

Just reading that thread. Do you have to bolt the pressure plate up once the gearbox is on. I’ve always fitted the clutch on to the flywheel then installed the gearbox ( tranny ) but I’ve only ever worked on modern push clutches ? 

[Joey Mack]

You use a pilot tool and install the clutch to the flywheel . Then put the tranny in place

[Nathanwhit1]

Just now, Joey Mack said:

You use a pilot tool and install the clutch to the flywheel . Then put the tranny in place

Ah sound on the that link he bolted it up thru the tranny inspection point in didn’t quite make sense to me 

[Joey Mack]

With your clutch, the flywheel has around 8 'dogs' that need to be positioned squarely for proper insertion of the pressure plate, in order to avoid the plate dragging during use. You can see the 'dogs' in the dish type flywheel in the pictures that GW posted.

[Nathanwhit1]

5 minutes ago, Joey Mack said:

With your clutch, the flywheel has around 8 'dogs' that need to be positioned squarely for proper insertion of the pressure plate, in order to avoid the plate dragging during use. You can see the 'dogs' in the dish type flywheel in the pictures that GW posted.

Yeah that’s what was confusing me. I know I’ve never done one of these so just doubling checking etc 

[Joey Mack]

I understand.  The hardest part will be moving that transmission. However, since its a cabover truck, you wont be working in a hole in the floor.. 🍻

[Nathanwhit1]

44 minutes ago, Joey Mack said:

I understand.  The hardest part will be moving that transmission. However, since its a cabover truck, you wont be working in a hole in the floor.. 🍻

Haha I’ve got a telehandler and a forklift so should be ok oh and a lskedge hammer just in case I get really mad 🤣🤣🤣

[Joey Mack]

You will need to support the back of the engine. The rear engine mounts are on the tranny...👍💪

[fjh]

I have never seen anything but a two inch input on T series trans ! Correct me if im wrong! That said a block of wood and a hydraulic jack under the engine housing will work and your forklift or one arm Swede to hang the transmission! The intermediate plate dowels can be re used if not worn to bad! Hopefully it’s an organic clutch the flywheel may not need surfacing!

[Nathanwhit1]

2 hours ago, fjh said:

I have never seen anything but a two inch input on T series trans ! Correct me if im wrong! That said a block of wood and a hydraulic jack under the engine housing will work and your forklift or one arm Swede to hang the transmission! The intermediate plate dowels can be re used if not worn to bad! Hopefully it’s an organic clutch the flywheel may not need surfacing!

Yeah fingers crossed lol 

[Vladislav]

Yes, I first fit the tranny and than attached pressure plate bolts through the inspection hole. I did it that way because I didn't have a piloting part (an old input shaft) and also because I did a swap of 15,5 clutch by that same way in my R-model. This way you don't have the friction discs loaded so they're free to allow the input shaft to mate the bearing in the flywheel. All in all I assumed it to me as a hard job, mostly when you finally put pressure plate screws. But could be done. And initially I was adviced this approach on here, on BMT.

That clutch in my 1983 (or 82?) Cruiseliner was 14" clutch indeed. The identification is the flywheel for 14" is a deep dish while for 15,5 it's kind of a plate with 4 pedestals. Also the intermediate plate in 14" setup has multiple scuare cut outs over its OD to be corresponded with piloting pins in the flywheel. And 15,5 has four outer lips over it. Both points could be seen through the inspection hole.

My story turned out I had to pull the tranny once more after the time I made that post. The matter was wrong setting of the pressure plate. And I couldn't correct it in the truck since the throw out bearing didn't have any travel (since was set wrong). So after remove of the tranny I compressed the pressure plate in an arbour press, found out the set screw was not seised (what I was afraid of) and corrected the settings. Than put everything back onto the truck (forgot which way I fitted the clutch since I may be having a 2" input shaft from another tranny since that time it was in my yard). And when in place I ended setting the bearing travel and ajusted the clutchg brake (which I put new).

Of other issues worth mentioning I had that central plate not coming onto the piloting pins in the flywheel when put the parts together at the first time. Found that when the tranny was in place and I drove the pressure plate bolts (through that inspection hole and laying on a ground under the truck. So had to release the bolts and make some wiggling and kicking with a piece of steel stock and a hammer and forgot what else). 

The transmission in my truck is T1078 5-speed I belive. Very similar to your 6-speed. So I too expect you also having 14" clutch.

Bad thing I did I didn't describe the way I solved my issue in that original thread. If so I wouldn't need typing all this now. But as it usually happens current affairs take you off a subject.

Vlad

[Nathanwhit1]

5 hours ago, Vladislav said:

Yes, I first fit the tranny and than attached pressure plate bolts through the inspection hole. I did it that way because I didn't have a piloting part (an old input shaft) and also because I did a swap of 15,5 clutch by that same way in my R-model. This way you don't have the friction discs loaded so they're free to allow the input shaft to mate the bearing in the flywheel. All in all I assumed it to me as a hard job, mostly when you finally put pressure plate screws. But could be done. And initially I was adviced this approach on here, on BMT.

That clutch in my 1983 (or 82?) Cruiseliner was 14" clutch indeed. The identification is the flywheel for 14" is a deep dish while for 15,5 it's kind of a plate with 4 pedestals. Also the intermediate plate in 14" setup has multiple scuare cut outs over its OD to be corresponded with piloting pins in the flywheel. And 15,5 has four outer lips over it. Both points could be seen through the inspection hole.

My story turned out I had to pull the tranny once more after the time I made that post. The matter was wrong setting of the pressure plate. And I couldn't correct it in the truck since the throw out bearing didn't have any travel (since was set wrong). So after remove of the tranny I compressed the pressure plate in an arbour press, found out the set screw was not seised (what I was afraid of) and corrected the settings. Than put everything back onto the truck (forgot which way I fitted the clutch since I may be having a 2" input shaft from another tranny since that time it was in my yard). And when in place I ended setting the bearing travel and ajusted the clutchg brake (which I put new).

Of other issues worth mentioning I had that central plate not coming onto the piloting pins in the flywheel when put the parts together at the first time. Found that when the tranny was in place and I drove the pressure plate bolts (through that inspection hole and laying on a ground under the truck. So had to release the bolts and make some wiggling and kicking with a piece of steel stock and a hammer and forgot what else). 

The transmission in my truck is T1078 5-speed I belive. Very similar to your 6-speed. So I too expect you also having 14" clutch.

Bad thing I did I didn't describe the way I solved my issue in that original thread. If so I wouldn't need typing all this now. But as it usually happens current affairs take you off a subject.

Vlad

Sound thanks for all this. I’m hoping to start stripping it back end of the week and see what’s happening etc. before I loose my temper with it will the gearbox come apart with out doing anything with the clutch release or will the tranny just pull straight out ? 

[fjh]

Long as the clutch lever is unppined it should pull back fine!lot easier to free up that arm adjustment with the transmission on the ground  note when ordering the clutch order a pilot bearing the clutch won’t come with one!

[Nathanwhit1]

3 minutes ago, fjh said:

Long as the clutch lever is unppined it should pull back fine!lot easier to free up that arm adjustment with the transmission on the ground 

Sound cheers bud 

[Vladislav]

1 hour ago, Nathanwhit1 said:

Sound thanks for all this. I’m hoping to start stripping it back end of the week and see what’s happening etc. before I loose my temper with it will the gearbox come apart with out doing anything with the clutch release or will the tranny just pull straight out ? 

As fjh said just detach the release cable. A trouble may be found if the input shaft got seized in the disc splines or the bearing in the flywheel but those cases are seldom. BTW it worth to apply some grease to the points along the reassembly. Of other things you need to bottle jack the flywheel housing to free up rear engine mounts since they're on the tranny housing (as was mentioned above), detach the shift linkage and the prop shaft. There may/should be some air lines in your case, just common marks on which one goes to and that's all I belive. Ok, a speedo cable may be.

[Nathanwhit1]

9 minutes ago, Vladislav said:

As fjh said just detach the release cable. A trouble may be found if the input shaft got seized in the disc splines or the bearing in the flywheel but those cases are seldom. BTW it worth to apply some grease to the points along the reassembly. Of other things you need to bottle jack the flywheel housing to free up rear engine mounts since they're on the tranny housing (as was mentioned above), detach the shift linkage and the prop shaft. There may/should be some air lines in your case, just common marks on which one goes to and that's all I belive. Ok, a speedo cable may be.

Sound thank you I shall keep you all updated at the weekend