clutch change

[rupert's]

Hello everyone!!!
In the next few weeks I have to take the engine out of my MUTT... it leaves a small oil stain whenever I stop the car somewhere and I think it's because of the crankshaft seal.

While I'm taking the engine out I want to change the clutch, because sometimes a clutch pin gets out of adjustment and the clutch slips, especially after asking the car for some effort. To solve this, I'm thinking of two options.


Option 1: change the claws, springs and disc. These parts would be:

kit uñas embrague.jpg

Option 2: Mount a reinforced, more modern clutch with a new disc, which would be this:

embrague 2 mutt.jpg

Which do you think is the best option?
These parts are not specific to Mutt but are for the 215mm clutch, I think it is the same. Can you confirm this for me?

Thank you all very much! I am sure your comments will help me a lot.

[Mr. Recovery]

I would go with option #1, there are adjustments that can be made to the stock pressure plate. I will look for my TM on the Clutch and post some pages from it.

dan-2beers.jpg

[Redlight]

I also had to pull the powerpack and then replaced the clutch disk. If you do not know what type of plate you have installed, I would wait to order the correct one. I ordered the full face type and of course I had the other Puck style. So $100 new clutch sits in my garage collecting dust.
I did write up my experience, it may assist you in your project.

[Mr. Recovery]

Here are the 3 pages from the TM. sorry one page is out of sequence.

459984036_1036262827984636_1270441114271145980_n.jpg

459298128_403524572776992_8661983119459132796_n.jpg

459258278_1189455209007840_5281671545336437346_n.jpg

20240920_134113.jpg

dan-2beers.jpg

[rupert's]

Here are the 3 pages from the TM. sorry one page is out of sequence.

459984036_1036262827984636_1270441114271145980_n.jpg

459298128_403524572776992_8661983119459132796_n.jpg

459258278_1189455209007840_5281671545336437346_n.jpg

20240920_134113.jpg

dan-2beers.jpg

Ok!!! Thank you very much for posting the pages!!!! It would have been very useful to have these pages a while ago! In this case, if I finally do option 1, it will also be very useful to avoid making adjustments after assembly, which is very uncomfortable.

As for option 2... Has anyone made that change? Do you know what the difference is between having one clutch system and the other? Is it valid for my car?

I also had to pull the powerpack and then replaced the clutch disk. If you do not know what type of plate you have installed, I would wait to order the correct one. I ordered the full face type and of course I had the other Puck style. So $100 new clutch sits in my garage collecting dust.
I did write up my experience, it may assist you in your project.

My clutch is like the one in the manual, but I have a brand new one at home just to install it.

embrague nuevo mutt.jpeg

[rickf]

A couple of things to watch for here, Check out the friction surface of the clutch plate very well. If there are any dark spots or heat cracks then you will have clutch chatter problems if you reuse that old plate. The dark spots are heat scoring and they are extremely hard from the heat of slipping. These spots will contact the plate harder than the rest of the plate since the hardened spots will not wear down along with the rest of the plate.
And be sure you are getting the right hole size and spline count on that disc. The 151 used a rather odd size and spline count. I do not remember it right off the bat, I would need to go measure and count the splines on my spare transmission. The diaphragm style clutches like the new one you show there will have less pedal effort and somewhat smoother engagement that the finger style clutches. Somewhere someone said you cannot use the clutch plate from a puck style clutch with a fiber style clutch disc. Well, I have had that combination in mine for ten years now with no issues. And mine was even a used clutch plate with a new disc.

[Redlight]

The puck style is second generation. It grabs harder and you need a soft touch when you start on an incline. I understand the army went to the puck style due to the inexperienced drivers, they had no experience on driving shift autos. That is way the current fleet of tactical trucks are automatic transmission. I did not resurface my flywheel and I have not had any problems.

[rickf]

The only problem with adjusting the clutch plate according to the manual is trying to find the gauge blocks and then affording them. I just did a quick search and you are looking at 250.00 plus for a .300 block and then you need to get a .010 to go with it. And none of them were 6x6 inch.

[rupert's]

Currently, my fear is the calibration of the clutch disc... I don't have those calibration plates and I'm in Spain, here everything is in centimeters. The last time I removed the clutch disc I had a lot of slipping problems and I had to adjust the discs one by one from the lower clutch cover and turn the engine by hand to adjust the next disc. Sometimes I had to do these operations outside the house, throwing it on the ground in the middle of the street... It had to be done.
Lately it works well, but now I have to remove it again to change that crankshaft seal and I don't want to go through that again.

I have that new clutch disc without using it, and to avoid problems I think that in the end I'm going to put the clutch system of option 2, it's more expensive, but I make sure I don't have to make any adjustments. In addition, this way I eliminate the possibility of having those cracks and black spots that could cause me to jerk.
The entire clutch will be new, I suppose that everything will work out well on the first try.
Un saludo

[rickf]

Using all new parts is the best way to go. Like I said, watch that spline size and count. And to finish the job correctly you need to replace the throw out bearing and pilot bearing.

[svramselaar]

hi
can you check if the clutch assy give pressure at the plate
if you hold the clutch assy with pressure plate to the flywheel how big is the gap beween the flywheel and pressure assy
this is where the bolts go in
it must be a half pressure plate thicknes
it can be you have a wrong pressure assy
there are two parts numbers 8328265 and the 8328265-1 one for the puck and one for the disk plate

george

[rickf]

George, I have been using a puck pressure plate on a fiber disc for almost ten years now with no issues. Are you sure they will not interchange?

[rupert's]

hi
can you check if the clutch assy give pressure at the plate
if you hold the clutch assy with pressure plate to the flywheel how big is the gap beween the flywheel and pressure assy
this is where the bolts go in
it must be a half pressure plate thicknes
it can be you have a wrong pressure assy
there are two parts numbers 8328265 and the 8328265-1 one for the puck and one for the disk plate

george

Hi George, I'm adding a picture of the current clutch in the car, I now have the engine in the car and running, I'll soon be taking a few days off and that's when I'll do some work on the car...
I don't understand why I'm going to look at the pressure assembly gap and then put in a new pressure assembly and a new disc.
I don't think this new pressure assembly needs any adjustment to the disc gap.

IMG_20201105_101209.jpg

<font style="vertical-align: inherit;"><font style="vertical-align: inherit;">La mejor manera de hacerlo es utilizar piezas nuevas. Como dije, tenga cuidado con el tamaño y la cantidad de estrías. Y para terminar el trabajo correctamente, debe reemplazar el cojinete de desembrague y el cojinete guía.</font></font>

Hi Rickf, this weekend I'm going to check that the clutch disc fits in an old gearbox I have at home.
As for the bearings, they currently work, I'm going to try to find out their sizes to see if I can get them at the bearing store. Un saludo

[svramselaar]

hi
rick i had for i think 25 years ago a new set from reomie with a A1 fiber plate
the flywheel was grindet
after several 1000 km with the trailer the clutch slipt
wen i dit take the bolts loose from the clutch a bit the plate was falling
there was not anough pressure at the plate
so i was thinking if a puck plate is thicker as a fiberplate i have the wrong assy
why are there two different parts numbers for the assy
i have now washers below the springs and grind a bid from the housing
so the pressure is higher and the pressure piece can further out off the assy
i have never problems again

can some one give the ticknes of both new plate`s fiber and puck

[rickf]

Sometimes they change numbers just because of a contract change. I will see if I can find some more info. But if anyone would know from a mileage standpoint it would be George!! He puts more miles on his 151 then I put on all my vehicles put together.