MAINTENANCE SERVICES
Water pump belt
Adjust the belt tension as outlined in the SECTION 0B MAINTE-
NANCE SERVICE.
Ignition timing
Refer to SECTION 6F IGNITION SYSTEM.
Valve clearance (lash)
To check and adjust valve clearance with the engine mounted in
place, that is, secured to the chassis, be sure to remove the cylin-
der head cover, so that you can take a good look at rocker arms and
camshaft. Remember, a clearance reading is meaningful only
when it is taken with the rocker arm clear of and not riding on the
cam.
Remove the ignition timing check hole plug provided at the joint be-
tween engine and transmission to gain visual access to the “T”
mark. Turn over crankshaft to index mark (
) to timing match mark
(
), and see if the rocker arms of No. 1 cylinder are off the respec-
tive cam lobes (of camshaft); if so, valves (1) and (2), in figure, are
ready for clearance checking and adjustment: if not, turn over
crankshaft further by 360
_
to index mark (
) to mark (
) again. This
360
_
turning should bring about the desired state. (in which the two
valves are ready for checking and adjustment).
6A-48
ENGINE MECHANICAL (F8B ENGINE)
Valve
clear-
When cold (Coolant
temperature is 15 –
25
_
C or 59 – 77
_
F)
When hot (Coolant
temperature is 60 –
68
_
C or 140 – 154
_
F)
ance
specifi-
Intake
0.13 – 0.18 mm
(0.005 – 0.007 in.)
0.15 – 0.19 mm
(0.006 – 0.007 in.)
cation
Exhaust
0.13 – 0.18 mm
(0.005 – 0.007 in.)
0.15 – 0.19 mm
(0.006 – 0.007 in.)
