TM 5-4320-302-14
6-20. CRANKSHAFT ASSEMBLY (CONT)
Location/Item
Action
Remarks
37. Stop ring
Inspect and replace for excessive wear, cracks,
warpage, rust, corrosion, or other damage.
Measure thickness. Measurement should be 0.1156
to 0.1175 inch (2.935 to 2.985 mm). If measurement
is not within tolerance limits, replace stop
ring. Stop rings are available in normal and over-
size thickness as shown below:
THICKNESS
(NORMAL AND OVERSIZED)
inches
STOP RING
(millimeters)
0.1156 to 0.1175
Normal
(2.935 to 2.985)
0.1254 to 0.1274
First oversize
(3.185 to 3.235)
0.1352 to 0.1372
Second oversize
(3.435 to 3.485)
0.1451 to 0.1470
Third oversize
(3.685 to 3.735)
38. Parallel
Inspect and replace if excessively worn, warped,
pins and
rusted, corroded, or otherwise damaged.
screw plug
REPAIR/REPLACEMENT
39. Crankcase
Replace if:
Crankcase is cracked, overheated, distorted,
or seriously damaged.
Crankcase machined surfaces are severely
rusted or corroded.
New main bearing bush or camshaft bush
will not seat properly in crankcase.
6-182
