TM 9-2320-366-34-4
20-7. CAMSHAFT AND BEARING REPLACEMENT/REPAIR (CONT)
(7) Measure diameter of camshaft journals (4). Minimum
diameter is 2.563 in. (6.511 cm).
(8) Measure height (A) of all camshaft lobes (3). Record
measurement.
(9) Measure base circle (B) of all camshaft lobes (3).
Record measurement.
(10) Subtract measurement (B) from measurement (A).
Difference in measurement is lobe lift (C). Refer to
Table 20-8. Camshaft Minimum Lobe Lift.
Table 20-8 Camshaft Minimum Lobe Lift
Exhaust lobe lift
0.3655 in. (0.9284 cm)
Intake lobe lift
0.3655 in. (0.9284 cm)
Injector lobe lift
0.3832 in. (0.9733 cm)
(11) Measure inside diameter of six camshaft bearings (8).
Maximum inside diameter is 2.575 in. (6.540 cm).
(12) Measure inside diameter of No. 1 camshaft bearing (9).
Maximum inside diameter is 2.575 in. (6.540 cm).
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