- 62-
ENGINE
- 162 -
1
、
CHECK
1). Checking the oil pump
• rotor housing
• rotor co er
Cracks wear amage
Replace.
• oil pump operation
Unsmooth
Repeat steps an or
replace the efecti e parts.
Checking the timing chain an gui es
• timing chain
Cracks stiff
Replace the timing chain an
camshaft sprocket as a set.
• timing chain gui es
ear amage
Replace.
2
、
MEASURE
. Measure the oil pump
• tip clearance a
etween the inner rotor
①
an the out rotor
②
)
• si e clearance
etween the outer rotor
②
an the pump
housing
③
)
• o y clearance c
etween the outer rotor
②
an the pump
housing
③
)
Out of specification
Replace the oil pump.
Tip clearance Limit: 0.23 mm
Side clearance Limit: 0.25 mm
Body clearance Limit: 0.20 mm
3
、
INSTALL
. Assem ling the oil pump
• inner rotor
• outer rotor
• oil pump shaft
with the recommen e lu ricant
ENGINE
- 163 -
CRANKCASE AND MIDDLE DRIVEN SHAFT
No.
Part Name
Qty Remarks
Remove the crankcase and middle
drive shaft
Remove the parts in the order listed.
Crankcase separation
1
solid pin 6×12
1
2
right crankcase assy
1
3
bolt M10×1.25×25
1
4 Washer
10× 32×5 2
5
o-ring 25×2.4
1
6
shaft sleeve
1
7
shaft sleeve bush
1
8
oil seal 25×47×7
1
9
flange bolt M6×20
3
10
front drive bearing seat
2
11
bearing seat papar gasket
2
