Read installation instructions in its entirety
before installing your Coil-Rite Kit
NOTE 1:
If your vehicle is equipped with vibration dampers
between the turns of the coil, it is necessary that these be
removed before installing the air springs.
NOTE 2:
Some mid-size General Motors vehicles have a solid
surface located on the lower spring seat which will not
allow the air line to exit the coil. Removal of this cup is
mandatory before installing the Coil-Rite air helper springs.
The cup is spot welded and can be removed by using a
chisel.
NOTE 3:
1991 and up Ford Crown Victoria, Mercury Grand
Marquis, Chevy Suburban, Tahoe, GMC Yukon, Honda
Passport and Isuzu Amigo, Rodeo, Trooper, and Nissan
Patrol use Step 2B.
VEHICLE P REPERATION
With the vehicle on a solid level surface chock the front
wheels. Raise the vehicle using a lift or platform jack
rated for your vehicle weight to lift the rear wheels off the
surface. Remove the rear wheels. Lower the vehicle
onto jack stands rated for your vehicles weight making
sure the suspension is fully extended. (Do NOT use wood
or concrete blocks to support the weight of the vehicle.)
4108 / 4110 / 4113 / 4114 / 4115 / 4116
4129 / 4136 / 4143 / 4145 / 4147 / 4149
WARNING
Do not inflate the air springs when unrestricted.
They must be restricted by a coil spring. Do not
inflate beyond recommended operating pressures
for your specific vehicle. Improper use or over
inflation may cause property damage or severe
personal injury.
SHOCK ABSORBERS
If necessary, additional clearance between the coil
spring turns may be obtained by removing the shock
absorbers from the lower mounts and lowering the
suspension an additional one to two inches. (CAUTION:
Do not put strain or tension on the flexible brake line.)
STEP 1 AIR SPRING PREPARATION
Cut a section of air line tubing 3 inches in length and
install into the push-to-connect fitting on the air spring.
Exhaust the air from the air spring by rolling it up toward
the air inlet. Install the plug into the tubing coming out of
the air spring.
STEP 2A INSTALLING THE AIR SPRING
Insert the flattened air spring into the coil spring through
the lowest opening with the push-to-connect air inlet at the
bottom of the coil spring refer to Figure "AA".
STEP 2B INSTALLING THE AIR SPRING
Insert the flattened air spring into the coil spring through
the lowest opening with the push-to-connect air inlet at the
top of the coil spring as shown in Figure "AB".
STEP 3 ADJUSTING THE AIR SPRING
HEAT SHIELD
Before beginning the installation of your Coil-Rite kit,
check the clearance from the coil spring to the exhaust.
If there is less than two inches you will need to move the
exhaust pipe for additional clearance. Heat shield
instructions are on a supplemental sheet included with
your kit. (Note: Heat shield is not used in the 4110 kit)
PARTS LIST
AIR SPRINGS 2
LOWER SUPPORTS 2
18' AIR LINE 1
NYLON TIE 6
PUSH-TO-CONNECT
INFLATION VALVE 2
5/16" FLAT WASHER 4
23-8508 09-07 NCD-5848-7
Push the air spring up into the coil spring by hand or with
a blunt tool, such as a spoon shaped tire iron or 1/2"
extension. Do NOT use anything with sharp edges or
corners as this may damage the air spring.
STEP 4 PLACING SUPPORTS
When the air spring is completely within the coil spring,
remove the plug and short piece of air line by pushing the
collar of the fitting towards the air spring. Allow the air
spring to return to its normal shape. Push the air spring to
the top of the coil spring. Insert the support between the
air spring and the coil spring seat as shown in Figures
"BA", "BB" and "C".
OPERATING PRESSURES
PASSENGER CARS 5-30 p.s.i.
1/2 TON VEHICLES 5-30 p.s.i.
SUV's 5-25 p.s.i.
AIR INLET
STEP 5 REATTACH THE SHOCK ABSORBER
Attach shock absorbers if removed earlier in the installation.
AIR
INLET
Figure "AA"
AIR LINE IN FRONT
OF THE AXLE
Figure "BA"
GM 1967-1972 vehicles,
Ford 1966-1978 vehicles air
line behind the axle.
UPPER SPRING SEAT
BLUNT TOOL
Figure "AB"
AIR LINE BEHIND
THE AXLE
Figure "BB"
GM 1973 & up Passenger
Cars, Ford 1979-1990 vehicles
air line behind the axle.
STEP 6 ROUTE THE AIR LINE
Cut the air line tubing into two equal lengths (cut the
tubing as squarely as possible). Select a location for
the inflation valves in a protected area, such as: on the
bumper or body (Note: The inflation valve will be
installed in step 8).
Insert the air line tubing into the push-to-connect
fitting on the air spring as far as possible. Route the air
line from the air spring to the desired inflation valve
location.
STEP 7 HOSE ATTACHMENT TO THE VEHICLE
With the tubing routed from the air spring to the
location of the inflation valve. Use the nylon ties
supplied to secure the air line tubing to the vehicle as
shown in Figure "D". Be careful to avoid heat and
sharp edges when fastening the tubing to the vehicle.
Route the tubing away from the exhaust system.
STEP 8 INSTALLING THE INFLATION VALVE
Drill a 5/16" hole where you wish to mount the
inflation valve. Remember to keep the inflation valve
in a protected area that is easily accessible. Attach the
inflation valve to the bumper or body of the vehicle as
shown in Figure "E". Tighten all nuts at this time.
Cut the excess air line tubing so that it will fit easily
into the inflation valve, making sure the end is cut
squarely (a "saw" cut with a sharp knife is preferred).
Push the end of the tubing into the inflation valve as far
as possible.
Figure "C"
1991 and up Ford Crown Victoria
1991 and up Mercury Grand Marquis
NYLON TIES
AIR LINE
Figure "D"
FOLLOW STEPS 1-8 FOR THE OTHER SIDE
STEP 9 INFLATE AND TEST
Inflate the air springs to recommended maximum
operating pressure (see page 1 for operating pressures). With a soap and water solution, check for air
leaks around the fittings and valve core. Remove the
jack stands and lower the vehicle to the ground. Inflating and deflating in 5 p.s.i. increments to find the ideal
riding condition for your vehicle.
AIR LINE
FLAT WASHER
PUSH-TO-CONNECT
INFLATION VALVE
BODY OF
VEHICLE
Figure "E"
HEX NUT
VALVE CAP
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