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General Category => General Discussion => Topic started by: motoscotto on May 14, 2016, 07:52:26 PM

Title: clutch plates
Post by: motoscotto on May 14, 2016, 07:52:26 PM
http://s116.photobucket.com/user/tri4cpic/library/MOTO%20GUZZI%20SPORT

looks like tranny oil got on the plates, are they reusable and can they be cleaned up or do I do a new clutch, 10,000 miles on her.
Title: Re: clutch plates
Post by: rodekyll on May 14, 2016, 08:25:25 PM
Clean them up and then ask again.  We can't tell what's crud and what are hot spots.
Title: Re: clutch plates
Post by: Antietam Classic Cycle on May 14, 2016, 08:37:20 PM
I wouldn't reuse them, but not because they're oil soaked. Those "spoked" plates have a bad habit of fracturing.


(http://thumb.ibb.co/mtMe1F/Nick_s_EV_clutch_004.jpg) (http://ibb.co/mtMe1F)


Title: Re: clutch plates
Post by: rodekyll on May 14, 2016, 09:31:58 PM
well, that heads off a discussion, doesn't it?    :boozing:
Title: Re: clutch plates
Post by: Wayne Orwig on May 14, 2016, 09:40:03 PM
I wouldn't reuse them, but not because they're oil soaked. Those "spoked" plates have a bad habit of fracturing.

What he said.

Get a set of bonded and riveted without the spokes.
Title: Re: clutch plates
Post by: motoscotto on May 16, 2016, 11:15:08 AM
I wouldn't reuse them, but not because they're oil soaked. Those "spoked" plates have a bad habit of fracturing.


(http://thumb.ibb.co/mtMe1F/Nick_s_EV_clutch_004.jpg) (http://ibb.co/mtMe1F)

  The dark spot don't come off with brake clean, I sanded on disk with a orbital sander and it came off, would it be ok to sand them clean and reuse them or am I worried about getting the surface uneven?
Title: Re: clutch plates
Post by: Chuck in Indiana on May 16, 2016, 01:14:25 PM
  The dark spot don't come off with brake clean, I sanded on disk with a orbital sander and it came off, would it be ok to sand them clean and reuse them or am I worried about getting the surface uneven?

I guess it depends on how much you like tearing down a Spot.  :smiley: That picture of Charlies tells all. Of course you'll get the surface uneven. It might work, though. It also might turn into that picture of Charlies. <shrug> I, personally, wouldn't even consider putting them back in.
Title: Re: clutch plates
Post by: motoscotto on May 16, 2016, 02:13:25 PM
I guess it depends on how much you like tearing down a Spot.  :smiley: That picture of Charlies tells all. Of course you'll get the surface uneven. It might work, though. It also might turn into that picture of Charlies. <shrug> I, personally, wouldn't even consider putting them back in.
My gut feeling is to replace the whole clutch your right I would not want to go back to it,
Title: Re: clutch plates
Post by: motoscotto on May 16, 2016, 02:17:20 PM
Another dumb question, so I am down to rear seal in the motor, do I just pry the old one out and put another in or do I have to pull the carrier to replace the seal?
Title: Re: clutch plates
Post by: Wayne Orwig on May 16, 2016, 02:35:52 PM
Another dumb question, so I am down to rear seal in the motor, do I just pry the old one out and put another in or do I have to pull the carrier to replace the seal?

I have replaced a number of them without pulling the rear carrier. In one case, it was the rear carrier gasket that was leaking, and I wish I had replaced it too.

Just an FYI. The rear seal seldom gets the clutch plates wet. If the clutch plates are wet, it is likely from the pushrod seals or the transmission front seal. The front transmission bearing may even be failing. But it is difficult for the rear motor seal and carrier gasket leaks to reach the clutch plates. Not impossible, but difficult.
Title: Re: clutch plates
Post by: Chuck in Indiana on May 16, 2016, 03:17:34 PM
Another dumb question, so I am down to rear seal in the motor, do I just pry the old one out and put another in or do I have to pull the carrier to replace the seal?

Consider what Wayne says, of course. If the rear seal *is* leaking, there will be obvious signs of it once you pull the clutch/flywheel. Whenever I have any doubt at all, I put in a new rear seal while I'm there. After all, it's 20 years or so old, and they are cheap. (Guzzi content) I, personally, pull the bearing carrier. No chance of nicking the seal surface that way, and you get to replace the gasket that might be leaking. While you're there...  :smiley: JB weld the cam plug, etc. You *are* planning on keeping this Sport, right?
FWIW, a "mechanic" grossly overfilled the transmission in my/Rocker/DRSDave's Lemans 5, and it oiled the clutch plates. When I brought it home, I did the mineral spirits trick to it, and it was fine. That Might have saved you all the hassle.  :smiley:
Title: Re: clutch plates
Post by: motoscotto on May 17, 2016, 01:23:53 PM
Consider what Wayne says, of course. If the rear seal *is* leaking, there will be obvious signs of it once you pull the clutch/flywheel. Whenever I have any doubt at all, I put in a new rear seal while I'm there. After all, it's 20 years or so old, and they are cheap. (Guzzi content) I, personally, pull the bearing carrier. No chance of nicking the seal surface that way, and you get to replace the gasket that might be leaking. While you're there...  :smiley: JB weld the cam plug, etc. You *are* planning on keeping this Sport, right?
FWIW, a "mechanic" grossly overfilled the transmission in my/Rocker/DRSDave's Lemans 5, and it oiled the clutch plates. When I brought it home, I did the mineral spirits trick to it, and it was fine. That Might have saved you all the hassle.  :smiley:

The fluid on the clutch is from gear oil, it is burnt into the clutch plates, it does not come off without sanding it off, so I am replacing the clutch, the main engine seal is not leaking but I will replace it along with the breather gasket. Do I just jb weld the seam on the cam plug.
Title: Re: clutch plates
Post by: Matt Story on May 17, 2016, 01:37:46 PM
Greg Bender covers it on his website.  Pun intended. http://www.thisoldtractor.com/moto_guzzi_loopframe_engine_out__check_these_things.html (http://www.thisoldtractor.com/moto_guzzi_loopframe_engine_out__check_these_things.html)