Inspection - Honda BF135A Manual

3. INSPECTION

• BALANCER SHAFT JOURNAL O.D.
Measure the O.D. of the balancer shaft No.1 journal.
19.938 – 19.950 mm
Front
(0.7850 – 0.7854 in)
23.938 – 23.950 mm
Rear
(0.9424 – 0.9429 in)
If the measurement exceeds the service limit, replace the
balancer shaft.
• BALANCER SHAFT AXIAL FREE PLAY
1) Assemble the balancer case assembly (P. 12-7).
2) Measure the balancer shaft axial play with the dial indicator
by moving the balancer shaft back and force.
STANDARD
0.060 – 0.140 mm
(0.0024 – 0.0055 in)
3) If the measurement exceeds the service limit, replace the
balancer case assembly.
• BALANCER SHAFT OIL CLEARANCE
1) Clean the balancer shaft No.2 journal and the balancer
holder bearing. Check the journal and the bearing for
damage and wear.
2) Assemble the balancer case assembly (P. 12-7).
3) Remove the rear balancer holder. Set a plastigauge on the
balancer shaft No.2 journal as shown.
NOTICE
• Set the plastigauge in the axial direction on the balancer
shaft No.2 journal.
• Do not turn the balancer shaft while checking oil
clearance.
4) Reinstall the rear balancer holder and tighten the bolts to
the specified torque (P. 12-7).
5) Remove the rear balancer holder. Measure the width of the
pressed part of the plastigauge using the scale printed on
the bag of the plastigauge.
NOTICE
Measure the widest width on the plastigauge.
STANDARD
0.060 – 0.120 mm
(0.0024 – 0.0047 in)
6) If the measurement exceeds the service limit, replace the
balancer shaft bearing and recheck the oil clearance.
If the measurement still exceeds the service limit, replace
the balancer shaft.
12-6
STANDARD SERVICE LIMIT
19.92 mm
(0.784 in)
23.92 mm
(0.942 in)
SERVICE LIMIT
0.15 mm
(0.006 in)
SERVICE LIMIT
0.15 mm
(0.006 in)
[1]
PLASTIGAUGE
[1]
PLASTIGAUGE
[2]
SCALE