CYLINDER BLOCK - Inspection (Cont'd)
EM-187spec tableInspection (Cont'd)
PISTON RING SIDE CLEARANCE
| Specification | Value |
|---|---|
| Side clearance - Top ring(0.0016 - 0.0029 in) | 0.040 - 0.073mm |
| Side clearance - 2nd ring(0.0012 - 0.0025 in) | 0.030 - 0.063mm |
| Max. limit of side clearance (Top and 2nd rings)(0.008 in) | 0.2mm |
Side clearance - Top ring(0.0016 - 0.0029 in)
0.040 - 0.073mm
Side clearance - 2nd ring(0.0012 - 0.0025 in)
0.030 - 0.063mm
Max. limit of side clearance (Top and 2nd rings)(0.008 in)
0.2mm
PISTON RING GAP
Piston Ring Gap (Unit: mm (in))
Top
Type 10.14 - 0.26 (0.0055 - 0.0102)
Type 20.20 - 0.30 (0.0079 - 0.0118)
Max. limit1.0 (0.039)
2nd
Type 10.28 - 0.37 (0.0110 - 0.0146)
Type 20.15 - 0.25 (0.0059 - 0.0098)
Max. limit1.0 (0.039)
Oil
Type 10.20 - 0.60 (0.0079 - 0.0236)
Type 20.20 - 0.60 (0.0079 - 0.0236)
Max. limit
BEARING CLEARANCE
| Specification | Value |
|---|---|
| Main bearing clearance - No. 1, No. 3 and No. 5 bearings(0.0012 - 0.0022 in) | 0.031 - 0.056mm |
| Main bearing clearance - No. 2 and No. 4 bearings(0.0012 - 0.0036 in) | 0.031 - 0.092mm |
| Main bearing clearance - Limit(0.0039 in) | 0.10mm |
| Connecting rod bearing clearance(0.0004 - 0.0017 in) | 0.010 - 0.044mm |
| Connecting rod bearing clearance - Limit(0.0039 in) | 0.10mm |
Main bearing clearance - No. 1, No. 3 and No. 5 bearings(0.0012 - 0.0022 in)
0.031 - 0.056mm
Main bearing clearance - No. 2 and No. 4 bearings(0.0012 - 0.0036 in)
0.031 - 0.092mm
Main bearing clearance - Limit(0.0039 in)
0.10mm
Connecting rod bearing clearance(0.0004 - 0.0017 in)
0.010 - 0.044mm
Connecting rod bearing clearance - Limit(0.0039 in)
0.10mm
Either of the following two methods may be used, however, method "A" gives more reliable results and is preferable.
Method A (Using bore gauge & micrometer)
Main bearing
- 1Install main bearings to cylinder block and main bearing caps.
- 2Install main bearing caps to cylinder block.Tighten all bolts in correct order and in two or three stages.