Clutch operating theory

Would the Commando clutch be considered "wet"? because it runs inside the lubricated primary drive case? Or does it act more like a "dry" clutch because there is no "bath"? In this same vein, is there a reference to Commando-specific (even Mark III 850) engine operating theory, as may have been used for training technicians? (training manuals, wall charts and such). Thanks!

The Commando clutch just happens to live inside a sealed primary that also happens to have oil to lube the primary chain.
Many of us have installed belt instead of chain primary drives, that do not require oil to lube them.
Therefore the clutch operates perfectly well in the dry belt environment with the added benefit of not fouling the clutch plates.
This compares to a unit construction engine that has the clutch operation as part of the motor and lubed by the same motor oil,
hence that is referred to a wet clutch.

Anton vesely said:

In this same vein, is there a reference to Commando-specific (even Mark III 850) engine operating theory, as may have been used for training technicians? (training manuals, wall charts and such). Thanks!

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In addition to the factory Mk3 manual and parts book (links, below) there is a set of Mk3 wall charts (9).
https://andover-norton.co.uk/en/shop-details/14813

850 Mk3 manual:
http://britmoto.com/manuals/Manuals/850_man.pdf
Parts:
http://britmoto.com/manuals/Manuals/8503e_pt.pdf

I run mine FLOODED, filled with ATF, way beyond the level plug, covering the entire lower chain run.
Not a drop on the floor.
Clutch operates perfectly (no slip, no grab, linear engagement) for 32,000 miles.

concours said:

I run mine FLOODED, filled with ATF, way beyond the level plug, covering the entire lower chain run.
Not a drop on the floor
Clutch operates perfectly (no slip, no grab, linear engagement) for 32,000 miles.

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what plates?

84ok said:

what plates?

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Barnett, alloy host saves the hub from premature wear. I set it up using the info from dynodave:

http://atlanticgreen.com/ndnsclutch.htm

http://atlanticgreen.com/clutchpak.htm

Perfect on the first try, using this info. Thanks Dave!

and this:

how did you seal the primary cover?

84ok said:

how did you seal the primary cover?

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black (very oil resistant type) RTV in behind the giant O-ring (not TOO much), and also around the slidable tin, felt "seal" holder, RTV around the center stud, and the alternator wire grommet.