Hercules JXD - Page 13

TM
9–1706
8
ORDNANCE MAINTENANCE
Symptom
or
1
6. Lack of power in engine .
c .
Engine
vibrates
.
Cause
(
6
)
Leaking
head
gasket
.
(
7
)
Cracked
valve
seat
water
jacket
.
(
8
)
Improperly
adjusted
car
buretor
.
( 9 ) Air
leak
in intake
manifold
or
head
.
(
10
)
Partially
plugged
gas
line
.
6.
(
1
)
Skipping
motor
.
(
2
)
Motor
out
of
time
.
(
3
)
Needs
carbon
removed
and
valves
ground
.
(
4
)
Low
or
uneven
compres
sion .
( 5 ) Motor overheats .
( 6 ) Mixture too rich .
( 7 )
Clutch
slips
.
( 8 )
Brakes
dragging
.
c . ( 1 ) Motor mountings loose
or
badly
worn
.
(
2
)
Bad
skip
in
motor
.
(
3 )
Ignition
and
timing
too
far
advanced .
( 4 ) Idle
adjustment
set too
rich .
d . ( 1 )
Circulation plugged
in
radiator , causing cool
spot
in
core
.
(
2
)
Radiator
and
block
dirty
,
retarding
circulation
.
(
3
)
Ignition
late
.
(
4
)
Brakes
dragging
.
(
5
)
Clutch
slipping
.
(
6
)
Fan
belt
slipping
.
(
7
)
Thermostat
bad
.
(
8
)
Leak
or
lack
of
air
circu
lation .
( 9 ) Radiator fins bent or
clogged
.
d
.
Engine
overheats
.
6