|
Check crankshaft bearing clearance (with
micrometer gauge internal measuring device)
Note: Crankshaft
removed
Install
| 1. |
Attach 5x crankshaft bearing cap with crankshaft bearing shell
to cylinder block
Note: The bolt can be
reused for checking the crankshaft bearing clearance
| • |
Tighten 10x bolts 39 Nm +
60°
|
|
Measure
| 2. |
The average crankshaft bearing diameter is measured using an
internal measuring device at points I, II and III and then
calculated arithmetically.
|
| 3. |
Formula for calculating the average crankshaft bearing
diameter
|
Example:
|
|
|
|
|
I
|
52.738 mm
|
|
|
|
II
|
52.732 mm
|
|
|
|
III
|
52.741 mm
|
|
|
|
|
158.211 mm
|
divided by 3 =
|
52.737 mm
|
|
| 4. |
The average crankshaft bearing diameter is 52.737 mm.
|
|
|
| 5. |
The crankshaft bearing journal diameter is measured with a
micrometer at points I and II and then calculated
arithmetically.
|
| 6. |
Formula for calculating the average crankshaft bearing journal
diameter:
|
Example:
|
|
|
|
|
I
|
52.698 mm
|
|
|
|
II
|
52.694 mm
|
|
|
|
|
105.392 mm
|
divided by 2 =
|
52.696 mm
|
|
| 7. |
The average crankshaft bearing journal diameter is 52.696
mm.
|
|
|
| 8. |
The crankshaft play is calculated from the difference in
diameter between the crankshaft bearing bore and crankshaft
journal.
|
Example:
|
|
|
Average crankshaft bearing diameter
|
52.737 mm
|
|
Average crankshaft journal diameter
|
- 52.696 mm
|
|
|
0.041 mm
|
|
| 9. |
Permissible crankshaft bearing clearance: 
|
|
