JETStream TwinForce Series - Page 90

82
Operation Manual
6. Measure the attened plasti-gauge using
the gauge wrapper (Figure 160).
7. If the thickness of the plasti-gauge
exceeds 0.012 in. (0.31 mm), replace the
bearings. If the bearings do not exceed
the criteria, the bearings can be reused.
Note: New part clearances are as fol-
lows:
• Series 3000: 0.001 in. (0.025 mm) - 0.005
in. (0.13 mm)
• Series 3600/4200: 0.002 in. (.05 mm) -
0.005 in. (0.13 mm)
Installation
1. Apply clean new oil to the new connecting
rod journal bearing (inner diameter only)
(Figure 161).
2. Slide the bearing (Figure 162) into the
connecting rod from below the crankshaft
journal.
3. Apply oil to the inner surface of the cap
end bearing.
4. Properly orient the grooves and install the
bearing in the rod cap.
5. Place the two capscrews into the rod cap.
ATTENTION
The journal bearings have tabs that match the
inner diameter of the connecting rods. Ensure the
bearings are properly oriented in the tabs when
installing (Figure 163).
Figure 160: Plasti-Gauge Measurement.
Figure 161: Lubricating the Bearing.
Figure 162: Rod Bearing installation.
Journal Bearing
Crankshaft
Figure 163: Bearing Grooves.
Bearing Grooves