TM 5-3805-281-24-2
Camshaft and Timing Gear Train
VISUALLY INSPECT CAMSHAFT
1. Clean camshaft in solvent. Dry with compressed air.
2. Inspect all camshaft lobes (A) and journals (B) for wear
or damage. Replace camshaft as necessary. New
camshaft followers can be used with old camshaft (if
camshaft is serviceable). DO NOT reuse old camshaft
followers with a new camshaft.
NOTE: Very light score marks may be found but are
acceptable if valve lift is within specification.
Inspecting Camshaft
Pitting or galling dictates replacement. (See
CHECK VALVE LIFT, earlier in this group.)
RG,RG34710,1206
1923OCT971/1
MEASURE CAMSHAFT JOURNAL O.D. AND
BUSHING I.D.
1. Measure each camshaft journal O.D. If camshaft
journal O.D. is not within specification, install a new
camshaft.
2. Measure each camshaft bushing I.D. when installed in
cylinder block.
Compare measurements with specs given below.
Replace camshaft and bushings as needed.
Measuring Camshaft Journals
Camshaft Journal--Specification
OD ............................................................................. 66.987--67.013 mm
(2.6373--2.6383 in.) new
Camshaft Bushing--Specification
I.D. ............................................................................. 67.076--67.102 mm
(2.6408--2.6418 in.) new
RG,RG34710,1207
1923OCT971/1
