Cylinder Head Bolt Inspection
Precautions: General safety (00)
NOTE:
If cylinder head bolt is reused, check thread diameter of cylinder head bolt (1) for deformation as follows and replace it with new one if thread diameter difference exceeds limit.
Measure each thread diameter of cylinder head bolt “c” at “a” and “d” at “b” using micrometer (3).
Then calculate difference in diameters (“c” – “d”).
If it exceeds limit, replace cylinder head bolt with new one.
Cylinder head bolt diameter measurement points
“a”: 85.0 mm (3.34 in.)
“b”: 117 mm (4.60 in.)
Cylinder head bolt diameter difference (deformation)
Limit (“c” – “d”): 0.12 mm (0.0047 in.)
| 2. | Thread |