A.J.S. 16 Instruction Book - page 20
ADJUSTMENT OF O I L FEED (SINGLES)
E X H A U S T VALVE STEM LUBRICATION (SINGLES)
CLEANING O I L FILTERS—ALL MODELS
W A R N I N G — M a k e sure O i l Pipes are not reversed before starting the Engine.
The internal flow of oil is regulated by fixed restrictions. No adjustment is provided
except for the oil feed to the inlet valve stem. This adjustment is made by a needle
pointed screw located in the right side of cylinder head. (See illustration 16). It is
locked in position by a nut. The approximate correct setting is one-sixth of a complete
turn from the fully closed position. Once set it requires little, or no, adjustment.
Inlet valve squeak indicates the oil feed adjustment Is not open enough. Excessive oil
consumption, a smoky exhaust or an oiled sparking plug, generally indicates the oil
feed adjustment is open too much.
The exhaust valve stem is lubricated by oil flowing through a passage drilled in the
cylinder head. No adjustment is provided.
To remove and clean the feed pipe metal filter:
Drain Tank.
Then remove the oil feed pipe from the metal feed pipe protruding from the bottom
of the oil tank.
The metal filter may come away with the feed pipe, in which case there is no need
to disturb it. On the other hand it may remain in the oil tank bottom pipe, in which
case it may be withdrawn by grasping the ringed open end and pulling away.
After removal the filter should be cleaned in petrol and allowed to dry before re-fitting,.
Reverse the above procedure to refit the filter and pipes.
Illustration 7
Twin crankcase filter assembly
18