Section 03
ENGINE
Subsection 10
(CRANKSHAFT/BALANCER SHAFT)
03-10-6
VMR2004_133_03_10A.FM
If measurement is out of specification, inspect
butting faces of crankshaft and crankcase (MAG/
PTO side) for excessive wear.
Remove:
– timing chain
– intermediate gear
– retaining ring and drive gear.
1. Timing chain
2. Intermediate gear
3. Drive gear
Disassembly
Remove screws retaining crankcase MAG.
19 SCREWS
Split crankcase housings.
NOTE:
Hit with a soft hammer to ease lifting crank-
case MAG.
Remove balancer shaft and crankshaft (see BAL-
ANCER SHAFT and CRANKSHAFT above).
Inspection
NOTE:
To check some parts, it is recommended to
remove all components in both crankcase housing.
Clean crankcase from contaminations and blow
the oil supply lines with compressed air.
Check plain bearings
no. 9
and
no. 10
for scorings
or other damages.
Measure plain bearing inside diameter. Replace if
the measurement is out of specification.
1. MAG plain bearing without groove
2. Oil bore
3. Split of the plain bearing halves
4. Cylinder base direction
A. Plain bearing inside diameter to be measured in area of oil bore
3
R400motr23A
2
1
R400motr40A
WARNING
Use safety goggles to avoid injury to your eyes.
3
R400motr41A
2
1
A
4
