- Inspect the diameter
of the valve stem using a micrometer to check the clearance between the valve stem
and the valve guide.
Specifications
| • | The intake outer diameter is 5.465-5.480 mm (0.2152-0.2157 in). |
| • | The exhaust outer diameter is 5.440-5.455 mm (0.2142-0.2148 in). |
- Inspect the inner
diameter of the valve guide using a bore gage (1), at least 1 place
in the direction to the valve length.
Specifications
| • | The intake inner diameter is 5.500-5.512 mm (0.2165-0.2170 in). |
| • | The exhaust inner diameter is 5.500-5.512 mm (0.2165-0.2170 in). |
- Inspect the clearance between the valve stem and the valve guide.
Specifications
| • | The intake clearance is 0.020-0.047 mm (0.0008-0.0019 in). |
| • | The exhaust clearance is 0.0045-0.072 mm (0.0018-0.0028 in). |
- If a bore gage
is not available, measure the clearance using a dial gage by moving the edge of the
stem to the directions of (1, 2, 3).
| • | The intake clearance is 0.14 mm (0.0055 in). |
| • | The exhaust clearance is 0.18 mm (0.0071 in). |
- If the measured value is over the limit, replace the valve stem or valve
guide.
