A.J.S. 16MS, Instruction Book

Page: 45 / 94

Fit the front chain and lock the clutch centre nut by
Replace the front driving chain. Ensure the spring connecting link is fitted so that the
closed end of the spring clip faces the direction of rotation.
Engage top gear, apply the rear brake and then fully tighten the nut that retains the clutch
centre to the gear box mainshaft.
Turn up the edge of the lock plate so that it tightly abuts against a flat of the nut.
Fit the clutch plates and springs by
Slide into position, in the clutch case attached to the clutch sprocket, a steel plain
clutch plate.
Slide into place a clutch friction plate (plate with fabric inserts) and follow with a steel
plain plate, then another friction plate and so on, alternatively, till ail plates are fitted.
(Five plain plates and four friction plates on 350 c.c. ; six plain, and five friction on
500 c.c. and all competition models.)
Drop into the spring pressure plate the clutch spring cups.
Show up the spring pressure plate and insert over the studs the clutch springs, retaining
each one a few turns, as fitted, with a clutch spring adjusting nut.
Fully tighten the clutch spring adjusting nuts, using end of spanner Part No. 017254.
Slacken back, four complete turns, each clutch spring adjusting nut.
Engage top gear, apply rear brake and then fully tighten the engine shock absorber
retaining nut.
Check front driving chain for adjustment
Check dynamo driving chain for adjustment.
Check clutch operarating lever for correct free movement as detailed elsewhere.
Fit outer half of front chaincase by
Ensure faces of both halves of chaincase are clean.
Ensure the rubber and metal bands are clean and undamaged.
After carefully positioning the outer half so that its exterior edge exactly coincides with
that of the inner half, apply the endless rubber band.
Fit the metal band, starting at the front end of the chaincase and drawing together the
two free ends with the fingers of one hand while with the other hand insert the
binding screw.
Whilst slowly tightening this binding screw apply at the same time light taps all round
the band exterior using a small rubber mallet.
These light taps will cause the metal band to creep the on rubber to ensure an even
all round pressure.
Remove the inspection cap from the chaincase and pour in engine oil to the level of the
bottom edge of the inspection cap orifice and then replace the cap.
NOTE—If, after replacing a front chaincase, it is found not to be oil tight, the general
reason is distortion of the two joint faces or incorrect position of rubber band.
These faces must be undamaged and, on test, should closely fit to a surface plate.
They must also be absolutely clean before replacement and the edges must
be in exact register, one with the other. Any distortion caused by accidental
impact must remedied before refitting.
If any doubt exists,
CHECK
for
DISTORTION BEFORE ASSEMBLY
43
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