R1040 MAINTENANCE MANUAL
Page 37 of 48
Fig 5.6.2
•
Similarly, check the valve clearance of exhaust valve with 0.3mm feeler gauge.
Readjust if necessary.
•
Check the valve clearances of each of the remaining cylinders and readjust, if necessary
.
•
Do not change the setting of oil metering screw unless required. With hot engine
running at idling, an oil flow to pad at rocker arm must be just noticeable. An
excess oil flow can lead to higher oil consumption.
5.7
Maintenance of Electrical Equipment
5.7.1
Starter Motor
•
Ensure that the mounting bolts are securely fastened and all electrical connections are clean
and tight. Cables should be examined for fractures, particularly where the strands enter the
terminal lugs.
•
Check the brushes. They must be renewed if worn to approximately 10 mm (for 2 &
3 cylinder engines, and 13mm (for 4 & 6 cylinder engines, which is half of the original
or to a point where springs no longer provide effective pressure.
•
Brushes must always be replaced in sets and with the correct grade.
•
Check the brush spring balance as shown in F ig.5.7.1. The spring pressure
should be as follows-
Fig 5.7.1
0.965 to 1 -080kg (for 2 & 3 cylinder engines)
1.220 to 1.580 kg (for 4 & 6 cylinder engines)
If the pressure is not within the above limits, renew the springs in set and not
individually.
