Contents: Gap ⇊ Selection ⇊
Gap
1. Remove the connecting rod cap and bearing shell.
2. Wipe the main journal and bearing with a clean cloth,
3. Place the measuring plate along the crankpin.
4. Install the insert and cover and tighten the nuts.
Tightening torque
Engines A16A2.B16A4.B16A5,B16A6:
- Mkr. = 40 Nm
Other engines:
- Mkr. = 31 Nm
Note: Do not rotate the crankshaft during inspection.
5. Remove the connecting rod cap and bearing and measure the widest part of the compressed plate.
Oil clearance between journal and connecting rod bearing:
Engines A16A2, B16A4, B16A5, B16A6:
- Standard value: 0.032-0.050 mm
- Operational value: 0.06 mm
Other engines:
- Standard value: 0.020-0.038 mm
- Operating values: 0.05 mm
6. If the size of the compressed plate is too wide or too narrow, remove the liners and install a new set of liners with the corresponding color code (select the color as indicated in the table on the right) and measure the gap again.
Caution: Do not file, scrape or otherwise manipulate bearings or caps to adjust clearance.
7. If measurements show that the clearance is not within the specified values, use the next larger or smaller insert (the color is indicated above or below this) and measure the gap again.
Note: If the proper clearance cannot be obtained using the appropriate larger or smaller bearing shells, replace the crankshaft and remeasure the clearance.
Selection
Caution: If the codes are not visible due to dirt and dust accumulation, do not remove them with a wire brush or scraper. Clean them only with solvent or powder.
Location of codes on the connecting rod
Numbers are stamped on the side of each connecting rod as a code for the size of the larger bore. Use these and the letters stamped on the crankshaft (crankpin size codes) to select the correct inserts.
Location of crank pin codes (letters)
