Topica Loopframe_Guzzi Archive


Subject: Re: Grabby clutch reappears

Author: Rex Clark

Date: Sep 8, 2003, 2:31 PM

Post ID: 1714445081



I have no way of knowing. I have not had the clutch apart since I have owned
the bike (about 1 yr.)

Rex

----- Original Message -----
From: "Ray Hale" <ray.-@sfcc.edu>
To: <Loopfram-@topica.com>
Sent: Monday, September 08, 2003 3:24 PM
Subject: RE: Grabby clutch reappears


 Rex,
Do you also have the "Sureflex" components?
Ray


rccla-@comcast.net wrote:
 
Hi all,

My 72 Eldorado does exactly the same thing as Joe describes and has
since I
bought it last fall. I had just decided it must be a quirk of the bike
and
have lived with it. It does not vary depending on whether bike is hot or
cold.
It has been consistant as long as I have owned it. So I am interested
too.
Also mine has a tendency to jump out of first gear while idling with the

clutch disengaged such as at a stop light. Other than that trans
operates
fine. Does not jump out of gear under a load. When I bought it it did it

regularly. I changed trans fluid and put in a semi-synthetic gear lube
and it
stopped jumping out of gear for a period of time but has gradually began
doing
it again. Any ideas. Thanks as always.

Rex Clark
 Ian,
I have the same problem with my V-7 Sport. I replaced
the clutch hub with the 4mm spline unit & replaced the friction plates
with the Sureflex items, all sourced from MG Cycles. I also changed
out
 
 
 the springs. My bike doesn't lurch forward like the clutch is either
off
 
 
 
or on, but when warm it hooks up pretty fast & sort of shudders, not
smooth & progressive. My pressure plate, intermediate plate, & ring
gear
 
 
 
were smooth, and I took great care to clean the splines inside the
flywheel spotless-no notches there either. I lightly lubed the hub &
flywheel splines with BMW spline grease & made sure there wasn't a
trace
 
 
 
of contamination on the friction surfaces. I have no trouble with
disengagement-I can easily slip into neutral when stopped & it will
easily go into 1st hot or cold. The only thing I can think of is the
friction charicteristics of the driven plates. I look forward to
hearing
 
 
 
what the list has to say.


Ian Adkins wrote:
 
Hey All,

Well....after 200 miles, and what I thought was a good fix to my
grabby
 
 
 
 clutch woes on the White Eldo, the problem is reappearing. The good
news
 
 
 
 
is
that I now have some experience with the progression of this problem
and
 
 
 
 
can
come to some concrete answers. Let me know if you folks agree with
my
 
 
 
 hypothesis.

When I first bought the bike the clutch was VERY grabby...almost
unrideable.
As I would ease out the cluth, trying to feel for the plates to make
contact, nothing would happen and then all of a sudden it would grab
and
 
 
 
 lurch forward (hey...maybe the bikes new name :-)). This problem was
less
evident when the engine was cold. The bike operated fine once
rolling.
 
 
 
 
I pulled the engine but there were no noticable indicators of
something
 
 
 
 wrong. The splines of all components looked good....the clutch
plates
 
 
 
 had
lots of thickness. There was a fair bit of clutch dust in there but
nothing
gummy. I replaced the clutch plates....realigned the flywheel (it
was
 
 
 
 off),
lubed the splines and bolted everything together.

When I first ran the bike everything was nice and smooth. Clutch
plates
 
 
 
 engage evenly and the bike worked like a dream....until 20 miles
ago.
 
 
 
 After
spending a good day with my buddy Ed....riding about 80 miles the
grabbiness
is reappearing...getting progressively worse. I can feel the
uneveness
 
 
 
 of
the plates making contact as I engage the clutch. The grabbing
appears
 
 
 
 to be
consistent with engine rotation.

The clutch operates smoothly so I don't think there is any binding
in
 
 
 
 the
cables. If the problem was with the tranny I think it would have
been
 
 
 
 evident as soon as I ran the bike after the apparent fix. I don't
think
 
 
 
 the
problem is in the splines of the tranny hub. I replaced the clutch
plates
but not the intermediate plate.....

My thinking is a warping intermediate plate as it gets hot. I have
yet
 
 
 
 to
retest the bike when cold but will do that sometime today.

Any thoughts?

...Ian



Joe in St Louis

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