A.J.S. 16, Инструкция

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NOTE—The special valve spring compressor tool is not part of the standard tool kit but
can be obtained from any of our dealers (Part No. 018276).
It is essential that the collets are correctly located on the valve stems. It will
be observed that the collet has two grooves machined in the bore and those
two grooves must register with the two rings on the valve stem. If fitted so that
only one of the grooves engages the ringed valve stem, damage will almost
certainly result.
On 350 c.c. the inlet valve head is larger in diameter than the exhaust. Therefore
unintended interchange is not possible.
On the 500 c.c. model for I960 the inlet valve stem is
c
" with a larger valve
head diameter.
TO REPLACE A VALVE
After cleaning valve guide bores, smear each valve stem with clean oil, insert, and apply
top collar and split collet.
Then apply the valve springs which although possible to fit by hand are more easily
manipulated with a special compressor tool Part No. 018276, illustration 14. To operate
this tool apply the top end of the valve spring to its groove in the top cap, then insert
a short rod (one of the rocker box fixing bolts suits admirably) through the holes in this
tool and the valve spring coils and pull outward and upward until the ends of the prong
of the spring can be rested on the seat, then press down with the fingers. Withdraw
the bolt or rod when the compressor lies against the cylinder head, retaining pressure
with the fingers until the bolt has been withdrawn and the tool removed, when the spring
can be readily pushed down to its proper location with the prongs laying flat upon the
seat.
See technical data for shaft location
Illustration 15 —Flywheel assembly
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