- Inspect the connecting rod bearings for excessive wear or damage
and discard. Connecting rod bearings with run time should never be reused.
- Install new connecting rod bearings. Position the tangs on the
bearings in the notches in the rod and cap or both could be damaged.
- Measure the bearing clearances using the following procedures:
| 3.1. | With the crankshaft still on the v-blocks, rotate the crankshaft
until the bearing journal to be measured is most accessible. |
| 3.2. | Wipe any oil from the crankshaft journal and the bearing insert. |
| 3.3. | Place a piece of fresh, room temperature plastic gaging material
in the center of the connecting rod bearing. |
| 3.4. | Install the connecting rod on the crankshaft |
Tighten
Tighten the connecting rod cap bolts to 25 N·m+ 110°
(18 lb ft + 110°).
Notice: Use the correct fastener in the correct location. Replacement fasteners
must be the correct part number for that application. Fasteners requiring
replacement or fasteners requiring the use of thread locking compound or sealant
are identified in the service procedure. Do not use paints, lubricants, or
corrosion inhibitors on fasteners or fastener joint surfaces unless specified.
These coatings affect fastener torque and joint clamping force and may damage
the fastener. Use the correct tightening sequence and specifications when
installing fasteners in order to avoid damage to parts and systems.
| 3.5. | Remove the bearing cap and determine the clearance by comparing
the width of gaging material, at its widest point, with the graduations on
the plastic gaging material container. The number within the matching graduation
on the envelope indicates the clearance. |
- If the new connecting rod bearings do not reduce clearance to
less than 0.076 mm (0.003 in), replace the crankshaft.
- If both new bearings and a new crankshaft are installed, the connecting
rod bearing clearance should be from 0.025 mm-0.076 mm
(0.001-0.003 in).
- Repeat the procedure for the remaining connecting rod bearings.
