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Clutch cover problems !!!!!!!!!!!!!!!!!!!!!!!!

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Brian Nielsen

11-07-2002 08:49:30

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I am restoring a 35' B and the clutch cover is held on by three tabs, witch are broke. From what I can see these tabs are held on by rivits I think, But I cant seem to find them in the parts book. Has anyone ran into this problem befor? Thanks, Brian

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Clooney

11-07-2002 11:24:19

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Re: clutch cover problems !!!!!!!!!!!!!!!!!!!!!!!! in reply to Brian Nielsen, 11-07-2002 08:49:30

Brian, I install those clips & rivets without pulling the pulley. I just pull the disks out & install the rivet & clip then use about a 3" piece of 3/8" steel strap & a big nut [one of the flats up] then clamp the nut under the rivet using the steel strap & 2 C clamps. I don't even use heat, I just use an air chisel with a bit ground to about 1/4"-5/16" on the end & upset the rivet that way. It helps to turn the pulley so the rivet hole you are working on is on the bottom until clamped then rotate to the top to hammer on the rivet head..

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Brian Nielsen

11-07-2002 13:41:33

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Re: Re: clutch cover problems !!!!!!!!!!!!!!!!!!!!!!!! in reply to Clooney, 11-07-2002 11:24:19

Thanks for the ideas, I have already ordered the parts, But I still am not quite sure of these rivits, are the like a one piece rivit like on the brake shoes, if so you want to mushroom it out? witch side do you stick in and witch side goes out? Thanks, Brian

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Clooney

11-07-2002 16:06:34

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Re: Re: Re: clutch cover problems !!!!!!!!!!!!!!!!!!!!!!!! in reply to Brian Nielsen, 11-07-2002 13:41:33

Brian, the rivets are a little like brake rivets but a little larger & made of steel. The rivet head goes towards the inside of the pulley & the small end goes through the clip then through the pulley. The pulley has a counterbore on the outside to allow the rivet end to be peened & expanded into it so the rivet end stays below the outer surface & away from the belt travel area. Just look at the remaining rivets & you will see how they install.

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F-I-T

11-07-2002 10:06:47

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Re: clutch cover problems !!!!!!!!!!!!!!!!!!!!!!!! in reply to Brian Nielsen, 11-07-2002 08:49:30

Brian:

The parts number in the late "B" book is B 141 R.

In the older "B" book, 45R, the item is pictured in Plate 47, B 141, right beside the clutch cover itself.

The rivets are called out in the late "B" book as 16 H 648A, and are described as 1/4"x1/2" in case you can find some at the hardware store. You'll need three clips and three rivets....though I would start with more rivets if it were me.

The fella in GM showed how to perform the task, and he used a small bottle jack inside the pulley to hold the rivet against the clip and in place, but as he said be careful not to distort the pulley diameter when you snug the jack....snug is good enough.

Frank-in-Tallahassee
70D // 855

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WTW

11-07-2002 09:45:27

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Re: clutch cover problems !!!!!!!!!!!!!!!!!!!!!!!! in reply to Brian Nielsen, 11-07-2002 08:49:30

Brian, The retaining clips are available at your JD dealer. They are not hard to replace. I rivet them back in like the originals were. To do so remove the pulley from the tractor. Drill the center of old rivet and knock them out with a punch. Put new clip and rivet in from the inside. Find a large bolt (I use a 3/4" diameter) that will be just long enough to hold the rivet up tight against clip inside the diameter of the pulley. When you find a bolt the right length put a nut on it and prop it inside the pulley to hold the rivet against clip. Once in place unthread the nut from the prop bolt causing it to extend and force the rivet and clip tight up against the inside diameter of the pulley. Heat the other / outside end of the rivet with a brazing torch until red hot and peen / swedge it out in the center with a center punch, after that finish penning with a regular punch. Move bolt to the next one and repeat on remaining two. This works well and will have the clip riveted up tight against the inside diameter of the pulley so the leaf spring affect will hold the cover on secure like intended. Good Luck Dave W.

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Sam Vastano

11-07-2002 09:23:35

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Re: clutch cover problems !!!!!!!!!!!!!!!!!!!!!!!! in reply to Brian Nielsen, 11-07-2002 08:49:30

Brian,

I had one broke on my 46 B and I used a mig welder to re build the broken one. Has held for over 2 years so far.

Hope this helps

Sam

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Richard

11-07-2002 09:06:01

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Re: clutch cover problems !!!!!!!!!!!!!!!!!!!!!!!! in reply to Brian Nielsen, 11-07-2002 08:49:30

Just in the last year there was an article in G-Mag in the mechanical section. What I remember is replacement clips were re-riveted onto the cover plate. Have you checked with the dealership on the clips availability?

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