TM 5-3895-370-14&P
5-68. CAMSHAFT REPLACEMENT/REPAIR (CONT).
(7)
Place a trough through camshaft bore and
remove banded wooden dowels in cylinder
head.
NOTE
·
Only remove one tappet at a time
into trough. If more than one is
removed, a tappet could fall into
oil pan.
·
If engine is upside down in stand
and oil pan removed, tappets can
be
removed
from
bottom
of
engine
block
without
using
trough.
(8)
Remove 12 valve tappets (7) into trough.
b. Cleaning/lnspection.
(1)
Remove all rough spots on camshaft with emery cloth and calibration fluid.
WARNING
·
Drycleaning solvent (P-D-680) is TOXIC and flammable. Wear protective
goggles and gloves; use only in a well-ventilated area; avoid contact with skin,
eyes, and clothes and do not breathe vapors. Keep away from heat or flame.
Never smoke when using solvent; the flash point for type I drycleaning solvent
is 100°F (38°C) and for type II is 140°F (60°C). Failure to do so may result in
injury or death to personnel. P-D-680 type III is a substitute for types I and II in
this application. The flash point for type III is 200°F (93°C).
·
If personnel become dizzy while using cleaning solvent, immediately get fresh
air and medical help. If solvent contacts skin or clothes, flush with cold water.
If solvent contacts eyes, immediately flush eyes with water and get immediate
medical attention.
(2)
Clean gear, camshaft, and valve tappets with drycleaning solvent and dry with lint-free cloth.
(3)
Inspect camshaft for scoring, cracks, and warping.
(4)
Inspect gear teeth for pitting, cracks, and warping.
(5)
Inspect socket, stem, and face of valve tappet for pitting, cracks, and excessive wear.
5-288
