Yamaha YZF1000RJ Service Manual page 171

•
•
•
•
•
•
•
INSPECTION AND REPAIR
I
ENG
I \al
4-
37
2.lnspect:
• Main journal surfaces
• Crank pin surfaces
• Bearing surfaces
Scratches/wear ➔ Replace .
3.Measure:
• Oil clearance (main journal)
Out of specification
➔
Replace the main
journal bearing.
Oil clearance (main journal):
0.020 ... 0.044 mm
(0.0008 ... 0.0017 in)
**********************************
Measurement steps:
f . ~ f . 1 ■ -11 -----------
• Do not interchange the main journal bear-
ings. To obtain the correct oil clearance
and to prevent engine damage, they must
be installed in their original positions.
• There is no slot in the
J3
main journal
bearing. During installation, do not inter-
change the J3 main journal bearing with
any of the other ones.
eClean the main journal bearings, main
journals and bearing portions of the
crankcase.
• Place the upper crankcase upside down
on a bench.
e
Install the upper half of the main journal
bearings
CD
and the crankshaft into the
upper crankcase.
NOTE: - - - - - - - - - - - -
Align the projection @ of the main journal
bearing with the notch (6) in the crankcase .
• Put a piece of Plastigauge®
®
on each
main journal.
NOTE: - - - - - - - - - - - -
Do not put the Plastigauge® over the oil
hole in the main journal of the crankshaft.