Dl
DAUNTLESS
V-6
ENGINE
D1-10S. DAUNTLESS V-6 ENGINE SPECIFICATIONS—Continued
LUBRICATION SYSTEM:
Type of Lubrication:
Main
Beasings
Connecting
Rod Bearings
Piston
Pins. Camshaft Bearings
Rocker Arms
Timing
Chain
Cylinder
Walls
Oil
Pump: Type
Drive
Normal Oil Pressure
Oil
Pressure
Sending
Unit. .
Oil
Intake
Oil
Filter
System
Filter
Type
Crankcase
Capacity:
Without
Filter
With
Filter.
English
Pressure
Pressure Splash
Pressure
Pressure
Splash and
Nozzle
Splash and
Nozzle
Gear
Camshaft Gear
33
psi. at
2400
rpm.
Electrical
Screened
Tube
Full
Flow Type
Throwaway Element and Can
4 qt.
5
qt. Metric
2,32 kg-cm2 at
2400
rpm.
3,8
ltr.
4,7 ltr. 108
E
FUEL
SYSTEM E-79.
FUEL
SYSTEM SPECIFICATIONS
(Continued)
MODEL
EARLY
MODEL
HURRICANE
F4
EARLY
MODEL
DAUNTLESS
V-6
AIR CLEANER:
Type
Oil
Bath
Oil
Bath
FUEL
TANK: 10H
gal. [39,75 ltr.]
10lA
gal. [39,75 ltr.]
Location
Under
Driver's Seat
Under
Driver's Seat
FUEL
PUMP:
AC
or
Carter
A.C.
Model
5594032
21955
6440515
Type..
Diaphragm,
serviceable unit
Disposable unit
FUEL
FILTER:
Tank
unit only
Left
side of engine, plus tank unit
MODEL
LATE
MODEL
HURRICANE
F4
LATE
MODEL
DAUNTLESS
V-6
AIR CLEANER:
Type...
Oil
Bath
Dry
Type
FUEL
TANK:
Capacity
16 gal. [60,57 ltr.]
16 gal. [60,57 ltr.]
Between frame
rails,
rear
of vehicle Between frame
rails,
rear
of vehicle
FUEL
PUMP:
Make.
Carter
A.C.
Model.
. 4574-S
6440515
Type
Diaphragm,
serviceable unit
Disposable unit
FUEL
FILTER:
Left
side of engine, plus tank unit
Left
side of engine, plus tank unit 136
F2
EXHAUST EMISSION CONTROL SYSTEMS
F2-3L
EXHAUST EMISSION CONTROL SYSTEM
DIAGNOSIS
GUIDE
Pump Noisy
Hoses Touching Other Parts of Engine or Body (Hood).
Note:
The Air Pump is not completely noiseless.
Under
normal conditions, pump
noise
rises in pitch as
engine
speed
increases. It is desirable to allow
for normal break-in wear of the pump prior to re
placement for
excessive
noise.
Pump Seized
Replace pump.
-
do not pry on housing.
Leak
In Hose
Check
for leaks; using
soap
and water, tighten clamps or replace
hoses.
Pump Inoperative
Loose Belt — tighten belt
-
Filter
Plugged — replace.
Exhaust
Backfire
Check
for vacuum leaks — correct as necessary.
Check
anti-backfire valve — replace as necessary
Induction System Backfire
Verify
engine
timing and distributor dwell.
Verify
accelerator pump charge.
F2-32.
EXHAUST EMISSION CONTROL SYSTEM MAINTENANCE CHART
Efficient
performance of the Exhaust Emission very important that all of the maintenance require-
Control
System is
dependent
upon precise main-
ments
are performed with extreme care at the
tenance. As indicated in the following chart, it is specific interval indicated.
Thousands of miles* or
OPERATION
number of months whichever occurs first 2 6 12 18 24 30
Inspect engine-driven
belts
for condition and tension R R
Replace positive crankcase ventilation valve
(PCV)
R R
Check
for free operation of exhaust manifold heat control valve O O O O O
Clean
carburetor air cleaner — Oil Bath O O O O O
Replace carburetor air cleaner
element
— Dry Type O
Check
heated air system O O
Engine
tune-up O O
Check
engine
timing R O O O
Adjust
carburetor idle
speed
and mixture R O O O
Perform
factory-recommended road
test
for evaluation of overall performance and handling O O O O O
R
— Required Services O — Recommended Services
*
Miles Kilometers
2,000
—
3,200
6,000
—
9,600
12,000
—
19,200 18,000
—
28,800
24,000
—
38,400
30,000
—
48,000
F2-33.
GENERAL SPECIFICATIONS
Air
Pump Belt Tension 60 lb.
Rotor
Ring Screw Torque . 37 lb-in.
Housing Cover Bolt Torque 10 lb-ft. Speed Ratio, Air Pump to Engine
1
\i to 1
F2-34.
EXHAUST EMISSION CONTROL SYSTEM CARBURETOR SPECIFICATIONS
Make
Rochester Model Designation 2G Code Number
7027082
—
7041185
Choke
Manual
Number of Barrels 2
Throttle
Bore... \W [3,65 cm.]
Main
Metering Jet Production .051" - 60° [1,29 mm.]
High
Altitude — over
5000
ft .049" - 60° [1,24 mm.]
—
over
10,000
ft .047" - 60° [1,19 mm.]
Float
Level
Adjustment* 1%," [2,94 cm.]
Float
Drop Adjustment l%" [4,76 cm.]
Pump Rod Adjustment** 1%" [2,94 cm.]
Engine
Idle
R.P.M.
(In Neutral) 650 to 700
Initial
Idle Speed-screw
setting
3 turns in
Initial
Idle Mixture-screw
setting
2 turns out
Dash
Pot Setting. Y%w [3,75 mm.]
*From
air horn gasket to top of float at toe.
**From
air cleaner ring to top of pump rod.
158
G
COOLING SYSTEM
engine
connections. Insert flushing gun and flush
heater core.
Care
must be taken when applying air
pressure to prevent damage to the heater core.
G-2.
Filling
Cooling System
To
fill
the cooling system, remove the
fill
cap and
fill
the tank to the top. Replace the cap and run
the
engine
at medium speed for approximately one
minute. Remove the cap and recheck the coolant level. Add more coolant if necessary to bring the level back to the top of the tank. If the cooling system is filled when the
engine
is cold, recheck the coolant level after the
engine
has warmed up.
This
will
ensure that the thermostat has opened allow ing complete cooling system circulation.
Always
correct any cooling system leaks before installing antifreeze. A corrosion inhibitor should be used in the cooling system to prevent the forma
tion of rust and scale. A quality brand antifreeze containing a corrosion inhibitor should be used.
When
the antifreeze is drained in the spring, a
corrosion inhibitor should be added with the water.
Note:
Cooling system components for both V6 and
F4
engines
are shown in
Figs.
G-2 and G-3.
G-3. Draining
Cooling System
To
completely
drain
the cooling system, open the
drain
in the
bottom
of the radiator and also a
drain
on the right side of the cylinder block on the
Hurricane
F4 engine. The Dauntless V-6
engine
has two
drain
plugs, one located on each side of the cylinder block. Both plugs must be removed to
completely
drain
the cooling system.
Remove the radiator cap to break any vacuum
that may have developed.
Should
the cooling solution be lost from the system
and
the
engine
become
overheated do not
refill
the system immediately but allow the
engine
to cool or
refill
slowly while the
engine
is running. If
cold solution is poured into the radiator while the
engine
is overheated there is danger of cracking the
cylinder
block and/or cylinder head.
G-4.
Radiator Pressure
Cap
All
radiators are equipped with pressure caps which
reduce evaporation of cooling solution and make the
engines
more efficient by permitting slightly
higher operating temperatures. When operating
properly,
the pressure cap permits pressure build-up
in
the cooling system during periods of severe heat
load.
This
pressure increases the boiling point of the coolant and thus reduces overflow losses. The
effectiveness
of the cap is limited by its opening
pressure and the boiling point of the coolant (see
note
below). The pressure cap employs a spring-
loaded, rubber-faced pressure seal which presses against a seat in the radiator top tank. Spring pres
sure
determines the opening pressure of the valve.
A
typical pressure cap is shown in Fig. G-5.
Note:
Refer to cooling system specifications (Par.
G-21)
for opening (relief) pressure when the ve
hicle is equipped with either the
Hurricane
F4
or
Dauntless V-6 engine. If a new cap is required, always install a cap of the same type and pressure
rating
specified. It should never be altered or re
placed by a plain cap.
A
vacuum release valve (Fig. G-5) is employed to
prevent undesirable vacuum build-up when the system
cools
down. The vacuum release valve is
held against its seat under light spring pressure.
Vacuum
in the system is relieved by the valve
which
opens
at V2 to 1 psi. [0,035 a 0,07 kg-cm2]
vacuum.
A pressure tester can be used to check and
test
the vacuum pressure rate (see Fig. G-6).
Although the mechanism of the pressure cap re quires no maintenance, the cap should be inspected
periodically for cleanliness and freedom of opera tion. The pressure cap gasket and radiator filler neck seat should also be inspected to be sure they
are
providing a proper seal. If the rubber face of
the valve is defective, a new cap should be installed.
Filler
neck reseating
tools
are commercially
avail
able to correct minor
defects
at the surface of the seat. Follow instructions of the reseating tool manu
facturer.
To
remove the radiator pressure cap when the
engine
coolant temperature is high or boiling, place
a
cloth over the pressure cap and
turn
counter clockwise about Vi
turn
until the first (pressure release)
stop
is reached. Keep the cap in this posi
tion until all pressure is released.
Then
push cap
down and
turn
still
further until cap can be re moved. To install the pressure cap, place it in posi
tion and
turn
it clockwise as far as it
will
go.
Caution:
Use extreme care in removing the radiator
pressure cap. In overheated systems, the sudden release of pressure can cause a steam flash and this
flash,
or the
loosened
cap can cause serious personal
injury.
G-5.
RADIATOR
Maintenance of the radiator consists of keeping
the exterior of the radiator core clean, the interior free from rust and scale, and the radiator free from
leaks.
Check
the cooling system fluid level and for
leaks each
2000
miles
[3.200
km.] or every 30
days, whichever occurs first.
This
exterior of the
radiator
core should be cleaned and the radiator inspected for leaks each
6000
miles
[9.600
km.]
of normal service of the vehicle. Cleaning should be performed by blowing out with air stream or water stream directed from the
rear
of the radiator.
Visual
inspection is not sufficient as the accumula tion of small particles of foreign material on core
surfaces can restrict cooling without closing the core openings.
Radiator
leakage occasionally results from cor
rosion perforation of the metal but most leakage results from mechanical failure of soldered joints
when too much strain has been put on the joint.
Fractures
occur most
often
at the joint where the
radiator
inlet and
outlet
pipes are attached to the
tanks.
When the seams break, the entire soldered
joint
is
exposed
and can corrode, but breakage
rather
than corrosion is the
primary
cause of seam
leakage. Examine the radiator carefully for leaks before and after cleaning. Cleaning may uncover points of leakage already existing but plugged with
rust.
White, rusty, or colored leakage stains indicate 164
'Jeep'
UNIVERSAL SERIES SERVICE
MANUAL
H
ELECTRICAL
SYSTEM
Contents
SUBJECT
PAR.
GENERAL
. -H-l Alternator Charging System H-6, 63 Battery. . . .H-2
Electrical
Instruments. H-l 11 Ignition System H-3
Lighting
System H-8, 125
Primary
Circuit.
.. H-4 Secondary
Circuit
H-5
SparkPlugs H-33
Starting System H-7, 88
DISTRIBUTOR
—
HURRICANE
F4
ENGINE
H-9
Coil
H-19 Condenser
.H-l
2
Disassembly.
.........................
.H-16
Distributor Cap H-10 Distributor
Points
H-13
Governor Mechanism H-l4
Inspection H-l
7
Installation and Timing H-18
Removal H-15
Rotor H-ll
DISTRIBUTOR
—
DAUNTLESS
V-6
ENGINE
H-20
Ballast
Resistor. H-32
Centrifugal
Advance H-25
Cleaning and Inspection H-28
Coil
H-31
Condenser H-23
Disassembly. H-27
Distributor Cap H-21 Distributor
Points
H-24
Installation and Timing. . .H-30
Reassembly. H-29
Removal H-2 6
Rotor H-2
2
GENERATOR CHARGING SYSTEM SERVICE
H-34 Generator Armature H-3
7
Generator Assembly. H-40
Generator
Brush
Holders H-39
Generator Disassembly H-36
Generator
Field
Coils.
H-38
Generator Maintenance H-35 Generator -
Current
-
Voltage
Regulator. . .H-41
Generator Regulator Quick Checks...... .H-48
Generator Regulator Test Procedure H-47
ALTERNATOR PRECAUTIONS.
H-64
ALTERNATOR CHARGING SYSTEM.
. .H-63 Alternator On-Vehicle Tests. .H-67
Alternator Output Test. .H-70 Isolation
Diode
Test H-69
Regulator Test .H-71 Removal and Installation of
Voltage
Regulator. H-72
SUBJECT
PAR.
Service
Diagnosis
H-66 Test Equipment H-68
Alternator
Field
Circuit
Test H-73
Brush
Insulation and Continuity Test H-75
Brush
Removal and Inspection H-74
Rotor In-Vehicle Tests H-76
ALTERNATOR BENCH TESTS.
.H-77
ALTERNATOR REMOVAL
H-78 Alternator Disassembly H-80 Alternator Installation. H-87
Assembling Alternator H-86
General
Inspection H-81
Diode
Test H-85
Out-Of-Circuit
Rotor Test. .H-82
Out-Of-Circuit
Stator Leakage Test.. . H-83 Rotor Tests H-79
Stator
Coil
Leakage and Continuity Test. .H-84
STARTING
MOTOR
—
PRESTOLITE.
. .H-92
Armature
.H-l
00 Bench Test H-l04
Bendix
Folo-Thru
Drive H-105
Brush
Holder Inspection. .H-102
Brushes H-98
Commutator H-95, 99
Disassembly H-9 7
Field
Coils H-101
Lubrication
of
Folo-Thru
Drive H-l06
Maintenance Procedure H-93
Overhaul
Procedure H-96
Reassembly of Starting Motor. .
H-l
03
Starter
Solenoid
Switch H-10 7 Starter Ignition Switch. .H-89
Wiring.
. . . H-94
STARTING
MOTOR
—DELCO
H-108
Armature
H-101
Brush
Holder Inspection H-l 15 Brushes
H:lll
Commutator H-112
Field
Coils........
H-114
Locked
Armature Test. . . H-l20
Solenoid
Coils H-l 16
Starting Motor Reassembly H-l 17
Starting Motor Cleaning and Inspection.
.H-l
10
Starting Motor Disassembly .H-109 Starting Motor No-Load Test H-119
Starting Motor Test — General H-l 18 Starter Switch —
Solenoid
Type. H-l21
Starter Ignition Switch. .H-89
ELECTRICAL
INSTRUMENTS
H-122 Testing Instrument Gauges H-l24
LIGHTING
SYSTEM
H-l25 Aiming Head Lamps H-132
Backup
Lamps H-135
(continued
on
next
page)
171
H
ELECTRICAL
SYSTEM
the condenser. Replace the condenser. If there is
no jump to full voltage, overhaul or replace the
distributor.
k.
With the points closed, connect the voltmeter
from
a clean, paint-free
post
on the distributor
body to the negative
post
of the battery. The volt
age drop should be practically zero, a hardly
readable deflection on the voltmeter. If the volt meter registers a
voltage
drop, perform the checks
in
steps
1
and m following.
I.
Check
for
voltage
drop in the battery ground
cable.
Clean
the battery
post,
cable terminals, and contact surface on the bellhousing, or on body if
a
noticeable deflection of the voltmeter occurs,
m.
Check
for any
voltage
drop
between
the dis
tributor
body and a clean, paint-free
spot
on the
cylinder
block. If there is any
voltage
drop, remove
the distributor and clean the mounting surfaces of
distributor
body and cylinder block.
H-5.
SECONDARY
CIRCUIT
If
satisfactory ignition is not obtainable with cor
rect
point gap and tension; satisfactory condenser;
sufficient primary voltage; and correctly cleaned, gapped, and installed spark plugs; the secondary
circiut
should be investigated.
a.
Test the coil.
Bring
the coil up to operating
temperature using the coil heat feature of a coil tester, if available. Refer to the coil tester manu
facturer's
instructions for specific hook-ups for
performing the checks given in
steps
b, c, and d following.
b. Connect the positive lead of the tester to the
battery terminal of the coil primary winding.
Con
nect the tester ground lead to the coil tower. Mea
sure
the resistance of the secondary winding. If the
resistance is more than
20,000
ohms, a fault in the
secondary winding is indicated.
c.
Check
for a grounded secondary by touching the tester ground lead to the coil cover. If resistance
is not over
100,000
ohms, the secondary is grounded
to the cover.
d.
If the secondary winding is satisfactory, mea
sure
the primary current draw in accordance with
the instructions of the
test
equipment manu
facturer.
e.
Check
the secondary circuit for leakage. With the coil primary in the circuit with the breaker unit of the tester, connect a long, high-tension
test
lead
to the coil tower.
Check
the secondary circuit for
leakage by performing the checks given in
steps
f. g, h, and i following.
Note:
In the following
tests,
a slight sparking and
meter deflection
will
usually be
seen
just as contact
is made.
This
is caused by capacitance and
does
not
indicate defective insulation.
f.
Check
distributor cap. Remove the coil lead from the cap and touch the
test
lead to the center contact
inside the cap. If the meter reading drops when the contact is touched or if sparking is seen, a leakage
path is present
between
the center contact and one
of the plug towers.
This
leakage path
will
be in the
form
of a
crack
or carbon track in the cap. Discon nect the spark plug wires from the cap one at a
time and
test
each plug contact with the high-
voltage
lead and with all other plug wires con
nected. Any sparking or meter drop indicates that
a
leakage path exists
between
that particular con
tact and an adjacent one. Testing the adjacent contacts
will
determine which pair is at fault,
g-
Check
distributor rotor. Touch the
test
lead to
the spring contact in the center of the distributor
rotor.
Any leakage in the rotor insulation
between
the contact and the shaft
will
cause a drop in the meter reading and usually sparking
will
be seen.
h.
Check
spark plug wires. Disconnect the spark
plug wires from the plugs and
test
the plug terminal of each. The meter reading should not drop below
the open secondary value (value before making contact). If it
does
or if a large spark occurs when
the
test
lead and the plug wire are separated, there
is a break in the insulation on that wire.
i.
Check
the coil tower insulation. Remove the
high-tension
test
lead from the coil tower and touch
the ground lead of the coil tester to several points
around
the base of the tower. Any sparking or deflection of the meter indicates a leakage path in
the tower insulation.
H-6.
Alternator Charging System
All
Jeep
Universal
Series vehicles have, as standard
equipment a 35-amp., 12-volt, negative ground
alternator and a transistorized
voltage
regulator.
For
repairing the alternator, many of its major components are furnished as complete assemblies
including:
complete brush assembly which requires no soldering or unsoldering of leads; two complete
rectifying
diode
assemblies which eliminate the need for removing and replacing individual diodes;
a
complete isolation
diode
assembly; and a rotor assembly complete with shaft,
pole
pieces, field coil,
and
slip rings.
The
transistorized
voltage
regulator is an electronic
switching device. It
senses
the
voltage
appearing at the auxiliary terminal of the alternator and
supplies the necessary field current for maintaining the system
voltage
at the output
terminal.
The out
put current is determined by the battery electrical
load;
such as headlights, heater, etc.
The
transistorized
voltage
regulator is a sealed unit,
has no adjustments, and must be replaced as a
complete unit.
H-7.
Starting System
The
operation of the starter motor is controlled by
the ignition switch. The starter is made up of a
frame,
field coil, armature, and brushes.
The
starter solenoid electrically
closes
the circuit
between
the battery and the starter motor. When the ignition key is turned to its extreme right, the
solenoid is energized and
closes
the battery-to- starter-motor circuit.
Note:
All Jeep Universal Series vehicles have the
starter
solenoid switch secured to the starter motor
assembly. The Hurricane F4 and Dauntless V-6
engine
Prestolite starter drive is of the inertia type
(rexr
continued on
page
176) 174
H
ELECTRICAL
SYSTEM
11474
FIG.
H-3—WIRING
DIAGRAM—MODELS
CJ-5, CJ-6, DJ-5 AND DJ-6—F4
ENGINE
(Model CJ-5 after Serial No.
49248,
Model CJ-6 after Serial No.
12577)
1—
Left
Headlamp
B—Turn
Signal Indicator 17—Directional Signal Switch
2—
Left
Parking and Directional Lamp C—Instrument Lights 18—Light Switch
3— Right Parking and Directional Lamp
D—Oil
Pressure Indicator
19—Stop
Light Switch
4— Right Headlamp E—Charging Indicator 20—Foot Dimmer Switch
5— Battery Ground Cable F—Temperature Gauge 21—Directional Signal Flasher
6— Generator
G—Fuel
Gauge 22—Fuse 7— Distributor H—Instrument Voltage Regulator
23—Solenoid
Switch
8— Ignition
Coil
12—Right
Tail
and
Stop
Lamp 24—Temperature Sending Unit
9— Starting Motor 13—Left
Tail
and
Stop
Lamp 25—Oil Pressure Signal Switch
10— Voltage Regulator 14—Fuel Gauge
Tank
Unit 26—Horn
11— Instrument Cluster 15—Ignition and Starter Switch 27—Junction Block
A—Upper
Beam Indicator 16—Horn Button
whereas the Dauntless V-6
engine
Delco starter
ignition
switch. If trouble
develops
in this switch, drive is of the clutch
type.
it must be replaced.
The
ignition
switch
serves
both
to
energize
the
The
starter circuit is
opened
when the
ignition
key
ignition
system
and
also
to
engage
the starter
sole-
is allowed to return to the "Ignition On"
position.
miod switch. With the key in the vertical
position,
No repairs or adjustments can be
made
to the the electrical
system
is off. This is the
only
position
176
'Jeep'
UNIVERSAL
SERIES SERVICE
MANUAL
H
12955
FIG.
H-8—PRESTOLITE
DISTRIBUTOR—DAUNTLESS V-6 ENGINE 1—
Cap
2—
Rotor
3—
Lubricating
Wick
4—
Snap
Ring
5—
Condenser
6—
Contact
Set 7—
Breaker
Plate
8—
Cam
and Stop Plate 9—
Spring
(2)
10—
Governor
Weight
11— Cam
Spacer
12—
Gear
13—
Gear
Pin
14—
Washer
15—
O-Ring
Seal
16—
Bushing
17—
Distributor
Housing 18—
Vacuum
Chamber
19—
Washer
(Nylon)
20—
—Cap
Clamp
and Rings
21—
—Primary
Lead
22—
Washer
(outer upper,
23—
Washer
(inner upper)
2".—Drive
Shaft
H-14. Governor Mechanism
The
centrifugal advance mechanism consists of
an
automatic cam actuated by two spring con
trolled centrifugal weights. As the
speed
of the distributor shaft increases with
engine
speed, the
weights
are thrown outward against the pull of the springs.
This
advances the cam causing the contact
points
to
open
earlier and thus advancing the
spark.
The centrifugal
type
governor should be checked for free operation. Hold the governor shaft
and
turn the cam to the
left
as far as possible
and
release it. The cam should immediately return to the original position without drag. Should a distributor
test
fixture be available it is
best
to make a check through the entire advance
range, following the instructions of the fixture manufacturer.
The
vacuum control unit is mounted separately
on the
outside
of the distributor housing on the
V6
Prestolite distributor.
The
vacuum control unit consists of an enclosed
spring-loaded diaphragm linked mechanically to the distributor. The air-tight side of the diaphragm
is connected to the intake manifold side of the
carburetor.
Under part throttle operation, the intake manifold vacuum is sufficient to actuate the
diaphragm and cause the distributor to rotate in
its mount, thus advancing the spark and increasing fuel
economy.
During acceleration or when the
engine
is pulling heavily, the vacuum is not suf
ficient to actuate the diaphragm and the distributor
is held in the retarded position by a calibrated
return
spring which bears against the vacuum
diaphragm.
H-15.
Distributor Removal
a.
Remove high-tension wires from the distributor cap terminal towers, noting the order in which
they
are
assembled to ensure correct reassembly.
b. Remove the primary lead from the terminal
post
at the coil.
c. Unlatch the two distributor cap springs and re
move
the cap.
d.
Note
the position of the rotor in relation to the
base.
This
should be remembered to facilitate re installing and timing.
e. Remove the screw holding the distributor to the
crankcase
and lift the assembly from the
engine.
H-16.
Prestolite Distributor Disassembly
Refer
to Fig. H-8 and H-9.
a.
Remove the rotor. b. Remove the condenser.
c. Remove the distributor points.
d.
Remove nylon washer attaching vacuum advance arm to breaker plate, V6 only. Remove two 181