TM 9-4940-568-34
7-58
7-7. CAMSHAFT AND VALVE TAPPETS REPLACEMENT (CONT).
(9)
Measure the fuel transfer pump and valve
lobes.
Diameter at Peak of Lobe
in.
mm
Intake
1.852
1.870
MIN.
MAX.
(47.040)
(47.492)
Exhaust
1.841
1.859
MIN.
MAX.
(46.770)
(47.222)
Lift Pump
1.398
1.428
MIN.
MAX.
(35.50)
(36.26)
(10)
Measure the bearing journals.
Journal Diameter
in.
mm
2.1245
MIN.
(53.962)
2.1265
MAX.
(54.013)
c.
Pitting Reuse and Edge Deterioration (Breakdown) Criteria.
(1)
A single pit should not be greater than an
area of a 0.079 in. (2 mm) diameter circle.
(2)
Interconnection of pits is not allowable and
is treated as one pit.
