OPERATION No MA. 112-O :
ChcJcking and adjusting the valrv mechanism.
Op. MA. 112-O
1
ADJUSTING THE ROCKER ARMS
Ir
E
2 Rotating the crankshaft :
7
m
Vc,birlvs /i//cd wifh n WRIINRI ~varbot :
E Raise one front wheel of the vehicle,
and
engage 4th or 5th gear in
order
to rotate the crankshaft by means of the
3
6
raised wheel.
I
e
Vchirlcs /ittcd wilh a lo~qnr covwrlc~ :
- There are two methods for rotating the crankshaft :
Gz
feed the
starter
using
CI G-volt battery,
;
remove the protective plate under the converter casing, and rotate it using a screwdriver.
:
Never attempt to rotate the engine using the camshaft pulley locknut.
1. Remove the following :
a) The rocker cover and its gasket (~,ofii~rr~s
/i//d Will, a rarb,,wt/or I.
b) The injection manifold and the racker-cover
(/,,<,I iU/<~CfPd r,zgir,rs 1.
2.
Adiust the engine cold :
Inkt : 0.15 mm
With lb<‘ <wgir,<~ cold
i Exhaust : 0.20 mm
3. Fit the rocker cover and its gasket.
Tightening torque of fixing screws : 0.5 to 0.8 daNm
(3.5 tc. 6 ft.lbs ).
Fit the injection manifold f i/ nczvd br 1.
Lower the wheel to the ground,
and
disengage the
gear.
r
ACCEPTABLEMETHODS
I I
I. (< Rocking )> the valves :
(Inlet valve starting to open, and exhaust valve
I
closing) closing)
Bring No. 1 in <, rocking position /) adjust No. 4 Bring No. 1 in <, rocking position /) adjust No. 4
II II
No. 3” ” ” ” No. 3” ” ” ”
No. 2 No. 2
0 0
No.4 I’ ” ” ” No.4 I’ ” ” ”
No. 1 No. 1
” No.2 ” ” ” ” ” No.2 ” ” ” ”
No. 3 No. 3
II. Exhaust valves fully open :
Valve to
be
opened
fully :
Adjustment of rocker arm
CleUKUlCe
Exhaust valve No. 1
,, I, No. 3
,, ,, No. 4
,, ,, No. 2
If a rocker-rim noise persists after adjustment, proceed as follows :
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