On Sep 27, 6:19*am, Gunner Asch wrote:
Many English motorcycles have a seperate transmission that is simply
bolted to the backside of the engine and is operated via a primary drive
chain.

Ive been pulling down the engine of my 61 Indian Chief for cleaning, and
a general checkout and ran across an issue Im a bit concerned about.
After pulling the side cover and loosening the timing chain..I noticed
my clutch basket was wobbling..so took everything down and apart and
discovered that the nut holding the center of the clutch was loose.

There is some wear on the splined shaft from the transmission and the
clutch basket is wobbling on it with that loose nut. The center of the
clutch is a three lobed gizmo with a splned female center and I havent
measured anything yet to find out where the actual wear is..but based on
looks..its on both parts. It still has semi-decent *splines..but they
are fairly loose.

It appears that the clutch center is the most worn part.

*Whats the fix for this? New guts for both? Steel epoxy with release
agent on one *half? I dont think there is more than .010 wear..but there
is wear and the basket rocks significantly.

Simply tightening the nut in the center of the clutch secures
everything..but since its a heavily loaded part..it drives the
transmission which then comes back out and drives the sprocket.

When I put the splined parts together..I get about 5-10 degrees of play
when rotating the clutch parts on the splined shaft.

Need photos or any of you English bike guys may know

Any ideas or suggestions would be great!

Gunner
"In the history of mankind, there have always been men and women who's goal
in life is to take down nations. We have just elected such a man to run our
country." - David Lloyyd (2008)

So is it just an assembly spline, just to line things up, or is it
something that has actual sliding parts on it as part of normal
operation? If it's just to mate two parts, you can probably use a
filled epoxy, have done that with VW trailing arms and fretted torsion
bars. If it's got sliding parts on it, you're probably looking at new/
used replacements.

Stan

On Tue, 27 Sep 2011 07:24:02 -0700 (PDT), wrote:

On Sep 27, 6:19*am, Gunner Asch wrote:
Many English motorcycles have a seperate transmission that is simply
bolted to the backside of the engine and is operated via a primary drive
chain.

Ive been pulling down the engine of my 61 Indian Chief for cleaning, and
a general checkout and ran across an issue Im a bit concerned about.
After pulling the side cover and loosening the timing chain..I noticed
my clutch basket was wobbling..so took everything down and apart and
discovered that the nut holding the center of the clutch was loose.

There is some wear on the splined shaft from the transmission and the
clutch basket is wobbling on it with that loose nut. The center of the
clutch is a three lobed gizmo with a splned female center and I havent
measured anything yet to find out where the actual wear is..but based on
looks..its on both parts. It still has semi-decent *splines..but they
are fairly loose.

It appears that the clutch center is the most worn part.

*Whats the fix for this? New guts for both? Steel epoxy with release
agent on one *half? I dont think there is more than .010 wear..but there
is wear and the basket rocks significantly.

Simply tightening the nut in the center of the clutch secures
everything..but since its a heavily loaded part..it drives the
transmission which then comes back out and drives the sprocket.

When I put the splined parts together..I get about 5-10 degrees of play
when rotating the clutch parts on the splined shaft.

Need photos or any of you English bike guys may know

Any ideas or suggestions would be great!

Gunner
"In the history of mankind, there have always been men and women who's goal
in life is to take down nations. We have just elected such a man to run our
country." - David Lloyyd (2008)

So is it just an assembly spline, just to line things up, or is it
something that has actual sliding parts on it as part of normal
operation? If it's just to mate two parts, you can probably use a
filled epoxy, have done that with VW trailing arms and fretted torsion
bars. If it's got sliding parts on it, you're probably looking at new/
used replacements.

Stan

Its to mate and Drive two parts. So much of the spline is under load.

The engine drives the tranny through the spline.

Gunner

"In the history of mankind, there have always been men and women who's goal
in life is to take down nations. We have just elected such a man to run our
country." - David Lloyyd (2008)

On 09/27/2011 01:52 PM, Gunner Asch wrote:

When I put the splined parts together..I get about 5-10 degrees of play
when rotating the clutch parts on the splined shaft.
If there is ONLY rotational free play when it is assembled, then I
wouldn't worry a whole lot about it. If it is capable of wobbling with
the nut in place, then it is going to be a lot of trouble over time, as
there will be a lot more wear developing. Maybe properly locking the
nut in place is all it will take to make it right.

Jon

If the hub doesn't move, you can wrap .001" SS shim stock around the
splined shaft, work it into the splines and apply enough to allow a
tight press fit, without tearing the shim. Takes some eye and a few
tries.
JR
Dweller in the cellar



On Tue, 27 Sep 2011 07:24:02 -0700 (PDT), wrote:

On Sep 27, 6:19*am, Gunner Asch wrote:
Many English motorcycles have a seperate transmission that is simply
bolted to the backside of the engine and is operated via a primary drive
chain.

Ive been pulling down the engine of my 61 Indian Chief for cleaning, and
a general checkout and ran across an issue Im a bit concerned about.
After pulling the side cover and loosening the timing chain..I noticed
my clutch basket was wobbling..so took everything down and apart and
discovered that the nut holding the center of the clutch was loose.

There is some wear on the splined shaft from the transmission and the
clutch basket is wobbling on it with that loose nut. The center of the
clutch is a three lobed gizmo with a splned female center and I havent
measured anything yet to find out where the actual wear is..but based on
looks..its on both parts. It still has semi-decent *splines..but they
are fairly loose.

It appears that the clutch center is the most worn part.

*Whats the fix for this? New guts for both? Steel epoxy with release
agent on one *half? I dont think there is more than .010 wear..but there
is wear and the basket rocks significantly.

Simply tightening the nut in the center of the clutch secures
everything..but since its a heavily loaded part..it drives the
transmission which then comes back out and drives the sprocket.

When I put the splined parts together..I get about 5-10 degrees of play
when rotating the clutch parts on the splined shaft.

Need photos or any of you English bike guys may know

Any ideas or suggestions would be great!

Gunner
"In the history of mankind, there have always been men and women who's goal
in life is to take down nations. We have just elected such a man to run our
country." - David Lloyyd (2008)

So is it just an assembly spline, just to line things up, or is it
something that has actual sliding parts on it as part of normal
operation? If it's just to mate two parts, you can probably use a
filled epoxy, have done that with VW trailing arms and fretted torsion
bars. If it's got sliding parts on it, you're probably looking at new/
used replacements.

Stan
HOME PAGE:
http://www.seanet.com/~jasonrnorth
--------------------------------------------------