Service Diagnosis - Mechanical; External Oil Leaks - Jeep CJ-7 1984 Workshop Manual

Condition
LEAKS
EXTERNAL OIL
SEE
I.S.
N
o
T
E
S
ENGINES
GENERAL SERVICE AND DIAGNOSIS

Service Diagnosis - Mechanical

Possible Cause
( I)
Fuel pump gasket broken or
improperl y seated.
Cyli der head cover RTV sealant
(2)
n
broken or improperly seated.
Oil filler cap leaking or missing.
(3)
(4)
Oil filter gasket broken or improperly
seated.
Oil pan side gasket broken,
(5)
improperly seated or open ing in
RTV sealant.
Oil pan front oil seal broken or
(6)
improperly sealed.
(7)
Oil pan rear oil seal broken or
improperly seated.
(8)
Timing case cover oil seal broken or
im p roperly seated.
(9)
Excess oil pressure because of
restricted PCV valve.
g loose or has
(10)
Oil pan drain pl u
stripped threads.
Rear oil gallery plug
( II) loose.
8-6
Correction
( I)
Replace gasket.
Replace sealant inspect cylinder
(2)
head cove
r sealant flange and
cylinder head sealant surface for
cracks.
distortion and
R
(3)
e place cap.
(4)
Replace oil fiiler.
(::I) Replace g a ket or repair ope
s
:-.t.' a lJnt: inspect oil pan gasket flange
I'm uistortion.
(6)
Replace seal� inspect timing case
cover and oil pan seal flange for
distortion.
Replace seal: i t oil pan rear oil
( 7)
n � c
pe
seal fla ge : inspect rear mai
n
cap for cracks. plugged oil return
channels. or distortion in seal groove.
Replace seal.
(8)
(9)
Replace PCV valve.
i as necessary and tighten.
(10)
e a r
R p
( 11)
Use appropriate sealant on
plug and tighten.
i n
g
n
in
bearing
n
gallery
B0651A