A.J.S. 16, Instruction Book

Page: 52 / 104

TO REMOVE CHAINCASE COVER—TWINS
Remove left side exhaust pipe with silencer attached
Remove left side footrest.
Remove adjusting nut on rear brake rod.
Place a tray under chaincase to catch oil.
Remove screwed inspection cap (use spanner 018178 in slot).
Remove drain plug, allow time to drain (content 8 ozs.).
Remove nut in centre of chaincase.
Remove fixing screws (14).
Depress brake pedal and take away the cover.
TO REMOVE C L U T C H A N D FRONT CHAIN—AL L MODELS
Take off the chaincase cover as previously described.
Unscrew clutch spring adjusting nuts.
Remove clutch pressure plate, with springs and spring cups.
Engage top gear, re-fit brake rod, apply pressure on rear brake pedal, unscrew nut on
mainshaft securing clutch hub.
Remove chain connecting link, take away the chain. detach clutch assembly as a unit
from mainshaft.
Fit clutch assembly by:
Fitting clutch hub to gear box mainshaft, also shaft nut and spring washer.
Engage top gear, apply rear brake and fully tighten gear box shaft nut.
Apply a little anti-centrifuge grease on clutch rollers.
Fit clutch sprocket and complete clutch assembly.
See paragraph Clutch Spring Adjustment.
TO REPLACE FRONT CHAINCASE COVER
Ensure paper gasket for joint is undamaged.
Offer up chaincase into position and gently take up the cable slack by pulling lightly the
cable from the rear of the chaincase, if fitted.
Locate the cover with the central fixing nut and lightly tighten.
Fit the fixing screws and tighten them first diagonally, then all round the case. Tighten
the central fixing nut, fill case with fresh oil to just below the inspection cap orifice.
Replace screwed inspection cap and other parts in reverse order.
TO REMOVE A.C. ROTOR A N D ENGINE SPROCKET—SINGLES
The rotor is keyed on to the engine shaft, the sprocket is splined.
Remove chaincase cover.
Engage top gear and reconnect rear brake rod to pedal.
Apply pressure on rear brake pedal and unscrew the locknut and nut securing rotor to
engine shaft.
Remove the washer and pull off the rotor.
Remove connecting link from front chain.
Remove key for rotor and distance piece (
U
" wide).
Remove engine sprocket.
NOTE—The distance piece behind engine sprocket can be left in position.
TO REMOVE A.C. ROTOR A N D ENGINE S P RO CKE T -
ALTERNATOR T W I N S
Follow the dismantling instructions given for the single cylinder models, straighten the
lock washer.
Remove the release valve, the rotor, the rotor washer and finally the engine sprocket.
NOTE—A distance piece is used between the engine sprocket and the crankcase bearing,
which should not be disturted. When refitting the washer for the rotor,
the concave side goes inwards towards the crankcase. (See note on chain
fitting.)
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