TM 10-3950-672-24-2
Part or Assembly
Ref. Point
mm
in
Edge Deterioration (Breakdown) Criteria
The area of edge deterioration should not be greater than the equivalent area of a 2 mm [0.079 in] circle within + or
- 20 degrees of the nose of the cam lobe.
Outside of the + or - 20 degrees of the nose of the cam lobe, the areas of edge deterioration should not be greater
than the equivalent area of a 6 mm [0.236 in] circle.
o
o
Heat the camshaft gear at 148 C [300 F) for 45 minutes. The gear will be permanently distorted if temperature
o
o
exceeds 177 C [350 F].
Vibration Damper
Index line out of alignment.
A
1.59
MAX
[1/16
Missing rubber member chunks
B
3.18
MAX
[1/8]
Piston
Measure the piston skirt diameter as
illustrated.
101.823
MIN
[4.0088]
101.887
MAX
[4.0107]
Use a new piston ring to measure the
clearance in the ring groove.
Top
0.075
MIN
[0.003]'
0.150
MAX
[0.0059]
Intermediate
0.075
MIN
[0.003]
0.150
MAX
[0.0059]
Oil Control
0.040
MIN
[0.0016]
0.130
MAX
[0.0051]
Pin bore diameter
40.006
MIN
[1.5750]
40.025
MAX
[1.5758]
5-356