Author Topic: Yet another EW Clutch Thread  (Read 506 times)

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Offline DEW

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Yet another EW Clutch Thread
« on: 05 Apr 2023 at 09:32 »
Now that the clutch is apart I have a couple of questions.

The flywheel has a couple of holes to receive pins on the the outermost clutch plate. It looks like new holes have been inserted (blue arrows) to replace older holes that may have worn (red arrows). The new holes are proud of the flywheel surface and we suspect that is not correct. Can anyone advise on that please?

The dog eared washer is missing. Previous threads have asked for dimensions but I can't see an answer, if anyone can give dimensions and material I'd be grateful.

The washer between the thrust bearing and the sprocket is missing. Again dimensions and material would be very helpful.

The clutch lining is quite worn and needs relining. The old lining has been packed out (quite ingenious in its way....) but is not a long term solution. What is the correct material and does any Australian member know someone (preferably in NSW or southern Qld) that can do the job properly?

Cheers
Dan
 

Offline Hamwic

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Re: Yet another EW Clutch Thread
« Reply #1 on: 05 Apr 2023 at 19:34 »
Hi DEW,

I have used Digger Bucket Washers, which are available in assorted thickness packs and diameters on flea bay (in the UK at least), along with a suitable needle roller thrust race from a bearing factor. The bearing comes with a couple of hardened facing washers, so you use the Digger Bucket Washers to make up the pack height. Does the biz, but may take a a couple of trial assembly trial to get it right.

Cheers for now
Doug

Offline Aussie Don

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Re: Yet another EW Clutch Thread
« Reply #2 on: 06 Apr 2023 at 07:35 »
Looks like a modified flywheel. 350 EW's only transmitted power through the Drive Dog washer, 600s had 2 pins on the plate.

Offline DEW

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Re: Yet another EW Clutch Thread
« Reply #3 on: 06 Apr 2023 at 09:27 »
Thanks Doug and Don,

That's very interesting about the flywheel. I noticed that pictures on another post didn't show the holes so I was wondering why ours was different. But then I read there were continuous modifications to the clutch design and just assumed this was a mod that came later in the model run.

Picture of the outside of the outermost clutch plate showing the pins.

Cheers
Dan