TM 5-1940-277-34
ENGINE BLOCK INSPECTION AND REPLACEMENT INSTRUCTIONS
(Continued)
LOCATION
ITEM
ACTION
REMARKS
WARNING
Always use safety goggles when using dry compressed air. Do not use pressures greater than 30
psi. High air pressure can cause injury and cut the skin.
• Dry cylin-
Use air compres-
der block
sor with air
and liner
gun.
using com-
pressed air.
• Coat cylin-
der liner
with oil to
prevent rust.
b.
Inspect block
Use steel
for warpage
straightedge and
parallel to
feeler gage.
length of
crankshaft
and at 90° to
crankshaft
axis (short
axis) at each
cylinder.
Warpage limit
Lower warpage
0.004 in ex-
limit in vici-
cept the war-
nity of number
page limit for
3 and 4 cylin-
the short axis
ders is due to
in vicinity of
water bore
number 3 and
arrangement.
4 cylinder is
0.002 in due to
water bore
arrangement.
3-93
