Commando Clutch

This is... odd.

The Commando has been fitted with aftermarket (apparently superior)
clutch plates. The guru at Norvil reckons there should be four fibre and
four steel plates.

But there aren't. There are five of each. Which is odd. Weggy, you on
here? Know anything about the history of the clutch?

The man says "Oh well, if you can get five in that's good!", but it's
been leaking oil from the gearbox, so it slips. I can get an extra oil
seal to cure that, but the plates are contaminated.

Anyone know a way to clean fibre clutch plates of oil?

--
Wicked Uncle Nigel - "He's hopeless, but he's honest"

I have already made the greatest contribution to the fight against climate
change that I can make: I have decided not to breed. Now quit bugging me and
go and talk to the Catholics.

 

Depends... I've used acetone-y solventy stuff for surface
contamination, but any deeper and I'd replace them, TBH.

 

Boil in detergent.

Or shove them in the dishwasher. Note: Do Not Do This With A Load Of
Crockery Already In The Machine[1].

[1] I learned this the hard way, when I shoved a Honda 400 Four sump in
with the dshes.

 

You silly old git!

 

Using the patented Mavis Beacon "Hunt&Peck" Technique, The Older

WTF, nothing to lose, I shall give it a whirl.

--
Wicked Uncle Nigel - "He's hopeless, but he's honest"

I have already made the greatest contribution to the fight against climate
change that I can make: I have decided not to breed. Now quit bugging me and
go and talk to the Catholics.

 

Carb cleaner, or Xylene (from Toolstation or similar). Nasty stuff, but
does degrease well.

Dunno about the glue used mind (on the backplate).

If it all comes apart, my real name's TOG...

 

Guilty as charged.

 

Using the patented Mavis Beacon "Hunt&Peck" Technique, SpamTrapSeeSig

No backplate on these, they seem to be solid fibre.

Christ, there's desperation...

--
Wicked Uncle Nigel - "He's hopeless, but he's honest"

I have already made the greatest contribution to the fight against climate
change that I can make: I have decided not to breed. Now quit bugging me and
go and talk to the Catholics.

 

Dishwasher. No seriously.

JB

 

Then xylene is worth a try. If you know an industrial paint shop,
it was used in the degreasing baths (after trich was banned in the early
1980s), and vapour bath cleaning degreases really well. Once evaporated
there should be no trace left of the solvent.

I'd be wary of the dishwasher on two counts: that the water might swell
the plates and what might get left behind from the plates in the
machine.

YMMV, as always.

 

<appears in haze of blue mist>

You should have a bill in the hystery for the fibre clutch plates.
They're from Norvil and I basically replaced what was in there when I
took it apart. I seem to recall getting similar advice from Norvil on
the number of plates.

<waves hands>

<disappears in a haze of blue smoke>

 

Using the patented Mavis Beacon "Hunt&Peck" Technique, AW

Who was that masked man?

Thanks, matey. I shall try to clean the plates and if that fails, get
new ones.

--
Wicked Uncle Nigel - "He's hopeless, but he's honest"

I have already made the greatest contribution to the fight against climate
change that I can make: I have decided not to breed. Now quit bugging me and
go and talk to the Catholics.

 

<reappears in a haze of...whatever>

Another variation which suggests 4 plain, 5 friction:

:
There are basically two variations of clutch pack in the Commando.
First is the early style THICK friction plates and are used with the
THICK pressure plate.
Next is the late style, which used the THIN friction plates and the
THIN pressure plate.

Plain Clutch Plate
Both clutch variations use these steel clutch plates 06-0746=.080”
thick
Early Qty =3
Late Qty=4
Barnett #524-S

Friction Plate

Early-thick .145” friction plates Qty =4
Thru 70- bonded segment 06-0749
71-72- solid fiber 06-1339
Barnett- bonded segment-thick # 524-68

Late-thin .125” friction plates Qty=5
73-75 Bronze 06-3741
Barnett-bonded segment-thin # 524-73.
Pressure Plate

Early THICK pressure plate 06-0745 =.347” thick

Late THIN pressure plate 06-3768 =.227” thick

STACK HEIGHT
To derive the full clutch height you add all the seperate components
including the FULL height of the pressure plate.
This is the FULL dimension filled by STACK HEIGHT of the components,
between the backing plate in the clutch basket out to the diaphragm.
From an engineering stand point this is the correct number.
Early clutch, original stack height=1.167”
Late clutch, original stack heigth=1.172"


From http://atlanticgreen.com/clutchpak.htm

 

One boils them briefly in a pan of bleach akcherly

 

Using the patented Mavis Beacon "Hunt&Peck" Technique, Mark Olson

Heh.

A quick boil in a pan of washing powder, followed by a good dose of
brake cleaner *looks* like it's helped.

We shall see...

--
Wicked Uncle Nigel - "He's hopeless, but he's honest"

I have already made the greatest contribution to the fight against climate
change that I can make: I have decided not to breed. Now quit bugging me and
go and talk to the Catholics.

 

I've been rather impressed with the degreasing ability of some stuff sold as
disc brake cleaner for bicycle discs.

 

Thus spake Austin Shackles () unto the assembled multitudes:

But isn't that just doing what it says on the tin?

 

pretty much. but it's ace for degreasing engine parts etc.