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3-69 SERVICING
EFlGlME
*
I f tensioner adjuster
is not going in,
turn
the
crankshaft slowly clockwise to get chain
play a t
inlet side.
Withdraw the lock screw by one-quarter
to
half
b '
I
a turn: this
separates
the tip of the screw from
the pushrod, thereby allowing the pushrod to
1
advance
under
spring force and t o press
the
tensioner
against
the
camshaft chain.
I
m Tighten
the lock nut @
.
When tightening the lock nut, take
care
to
prevent
the Dock screw from turning.
While turning the handle
a
counterclockwise,
slow1 y rotate the crankshaft in reverse direction
(thus causing the chain to push back the tension-
I
er).
rn
Release the handle and slowly turn back the
crankshaft in normal running direction (to
slacken that portion of the chain extending
along the tensioner). See if the handle rotates by
,
itself
as
the chain becomes progressively slack-
ened; if
it
does, then the pushrod inside is
obviously moving forward under spring force as
it should, thus signifying that the tensioner is
in good operable condition. If the handle
rotates, but sluggishly,
it
means that the pushrod
or lock shaft is sticking
and,
in
such
a case,
remove the tensioner and service the pushrod
and lock shaft
to
make them move smoothly.
. .
CAUTION:
After installing the tensionel
~ U I U
t necking
it
in
initially set condition for operation, do
not attempt to turn the handle in either
direction
until the next overhaul.
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