Lokar EFI Throttle Cable - Manual

Building American Quality… With A Lifetime Warranty!
General Installation Notes:
Please read these instructions completely before beginning the
installation. If you have any questions please call.
Before beginning the installation, disconnect the negative battery
cable and use wheel chocks to block the vehicle's wheels. Do not
attempt to install or adjust this product while the engine is running.
Make sure the engine, transmission, body and frame are properly
grounded. We recommend applying anti-seize lubricant to all alumi-
num threads before final assembly. Do not over tighten.
NOTE: Lokar’s Throttle Cable Kits are designed to work with Lokar Throttle
Pedals and Throttle Cable Brackets. This throttle cable is designed to be
Cut-To-Fit for your particular application.
Refer to Figs. 1, 2 and 3 for the component names.
The GM Tuned-Port Injection (TPI) kit includes two throttle body fittings. The
aluminum throttle body fitting with two set screws fits early TPI systems up
through 1988 (Fig. 2). The brass throttle body fitting with one set screw is used
on 1989 and later TPI, LT1, and LT4 systems.
Step 1: Install the Lokar throttle pedal and throttle cable bracket if they are
not already installed, following the instructions that are provided with
those parts.
Step 2: The hole in the firewall must line up with the hole in the throttle
pedal. Determine exactly where the throttle cable needs to pass
through the firewall and drill a 5/16" hole.
Step 3: Remove the throttle body fitting and throttle cable adjuster from the
engine end of the new Lokar throttle cable. If you have the braided
stainless steel housing, make sure you
DO NOT remove the ferrule
from the cable housing. Pull the inner wire out of the cable housing.
Step 4: On the pedal end of the cable housing, remove the adjuster nut from
the firewall fitting. Insert the firewall fitting through the firewall from
the engine side, and then reinstall the adjuster nut.
Fig. 3
Step 5: Remove the front adjuster nut from the throttle cable adjuster and
insert the throttle cable adjuster into the throttle cable bracket
(bracket sold separately). Position the rear adjuster nut so that the
throttle cable bracket is approximately centered on the threaded part
of the throttle cable adjuster. Reinstall the front adjuster nut.
Fig. 4
TOLL FREE 1-877-469-7440 • (865) 966-2269 • FAX (865) 671-1999 • [email protected] • www.lokar.com
®
EFI Throttle Cable Installation Instructions
EFI Throttle Cable Installation Instructions
For GM TPI, LT1, LT4, Vortec, LS1, and Ram Jet 350
Ford EFI 1994-95, and Modular Engines
INS0068 Rev. 07/22/14 Page 1 © 2005 Lokar, Inc.
Fig. 1
For GM TPI, LT1, LT4, Vortec, LS1, and Ram Jet 350
Ford EFI 1994-95, and Modular Engines
Step 6: Make sure that the inner wire is removed from the cable housing. If the
cable housing is braided stainless steel, slide the ferrule up the housing
towards the firewall, away from the end that is being cut.
DO NOT remove the ferrule from the braided stainless steel housing!
If the cable housing is black universal, remove the ferrule.
Measure the distance between the throttle cable adjuster and the firewall
fitting. Add 2" to the measurement and cut the cable housing to that
length.
NOTE: Cable housing must not be straight between the throttle cable
adjuster and the firewall. There must be some slack to allow for engine
movement.
If the throttle cable has the braided stainless steel housing, wrap tape
around the area to be cut and use an abrasive cutoff wheel or fine-toothed
hacksaw. If the throttle cable has a black universal housing, cut the cable
housing with heavy duty 8" diagonal cutting pliers or a hacksaw. Lokar
recommends Klein brand Diagonal Cutting Pliers, # D2000-28 available at
The Home Depot or through W. W. Graingers, Part # 4A838.
After cutting the cable housing, put the ferrule back in place at the end
of the cable housing. Insert the cable housing and ferrule into the throttle
cable adjuster.
Step 7: Reinstall the inner wire into the cable housing from inside the passenger
compartment. Connect the clevis on the new Lokar throttle cable to the
throttle pedal.
NOTE: If you are using a factory style pedal with a ball type connection,
the clevis can be removed by simply sliding it off of the inner wire before
you install the inner wire into the cable housing.
Step 8: Depress the throttle pedal to the floor and hold the throttle body at
the wide open throttle position. Pull all the slack out of the inner
wire. Mark the inner wire at the spot that the throttle body fitting
attaches to the throttle lever or fits into the hole on the pulley.
Step 9: On 1988 and earlier TPI with a throttle lever, cut the inner wire 1/4"
shorter than the mark. On all others with a throttle pulley, cut the
inner wire 1/4" longer than the mark.
MAKE SURE you are not cutting
the inner wire too short! Install the throttle body fitting onto the end
of the inner wire and tighten the set screw(s).
Step 10: Still holding the throttle wide open, release the throttle pedal so
that it creates slack in the inner wire. Attach the throttle body
fitting to the throttle lever or insert it into the slot or groove in
the pulley.
Step 11: Release the throttle. Take any slack out of the inner wire with the
adjuster nuts. The throttle cable adjustment should allow
the throttle to close fully, and the pedal should touch the floor
at the same time the throttle reaches wide open.
NOTE: Check to
make sure there is no binding of the throttle cable at both the
throttle pedal and at the throttle linkage before starting the engine
or driving the vehicle.
See Fig. 5 for an example of the throttle cable installed on a GM
LS1 engine, Fig. 6 for an early TPI installation, and Fig. 7 for an
LT1/LT4 installation.
Inner Wire
Throttle Body Fitting
(Varies per Application)
Ferrule
Cable
Housing Throttle Cable
Adjuster
All Except 1988 and Earlier GM TPI
Adjuster Nuts