CAMSHAFT, CAM FOLLOWER, AND PUSHROD REPAIR (Contd)
c. Inspection (Contd)
Camshaft (5) (Contd)
Light longitudinal indications
not exceeding two in number are
allowed on base circle of any one
Parallel indications must be
separated by at least 0.250 in.
(6.350 mm) on ramp and nose,
and by 0.0625 in. (15.875 mm)
on base circle.
(4) Open longitudinal indications
are not aIlowable except on base
circle. A maximum of two
longitudinal open indications
0.250 in. (6.350 mm) long or less
will be allowed on base circle
provided they are not closer
together than 0.250 in. (6.350 mm)
and are visible only as closed lines
when surface is wiped clean. Open
indications should not extend
closer than 0.1875 in. (4.763 mm)
to edge of cam.
(5) Circumferential indications
lying at an angle greater than
15P with longitudinal centerline
are not allowable.
(6) Subsurface indications are
acceptable. Four open
longitudinal indications are
permitted in each section of
bearing provided not more than
half of them extend full width of
bearing. Edges of such indications
are to be stoned, not to exceed
0.005 in. (0.127 mm) deep.
Camshaft gear (2)
Inspect for chipping, cracking,
Disassemble and discard
and visible wear.
camshaft gear if chipped, cracked,
or visibly worn.
Thrust washer (3)
Inspect for flaking, burrs,
Discard if damaged or worn
distortion, and wear.
thinner than 0.083 in. (2.108 mm).