Tilton Overhung-Mount (98-1206) - Manual

Description
Minimizing friction and flex in the pedal assembly and the master cylinders maximizes driver
control. The Tilton overhung pedal assembly with overhung mounted master cylinders effective-
ly handles these critical issues. In addition this assembly is highly adjustable for different drivers
and tracks, easy to install and maintain, and does all of this in a very lightweight package.
Master cylinDer anD peDal asseMbly installation
1. A pedal assembly can only be as rigid as its mounting system in the car.
See Recommended Chassis Modification on page 2 for suggested mounting techniques.
2. Select the brake pedal motion ratio (6.25:1, 5.37:1, 4.70:1). They are marked on the balance
bar mount. Make sure that the balance bar mount is firmly against the back face of the brake
pedal and tighten the two fasteners to 72 in-lbs.
3. The balance bar clevises are of two different lengths. The longer clevis is used with the master
cylinder for the front brakes. If you wish to reverse the position of the clevises do it now.
4. Set the center-to-center distance on the two balance bar clevises at 2.60". A good place to
start is with both clevises equally spaced from the pedal (middle balance bar position).
5. Remove the long bolt that mounts the three master cylinders. Remove the four master cylin-
der spacers from the frame.
6. Reinstall the two center master cylinder spacers in the frame. A small amount of RTV will keep
the spacers in place during assembly.
7. It is best to install the master cylinders on the pedal assembly before placing the assembly in
the car. Reinstall the mounting bolt through the three master cylinders, and tighten the nut
to 120 in-lbs.
8. Thread the three pushrods in the clevises eight revolutions. This will be .333". Final pedal posi-
tion adjustment will be made later.
9. Since the brake pushrods are threaded equal amounts and the clevises have two different
lengths, the balance bar will be at a 5° angle. This is by design and will be addressed in the
Pedal Positioning section below.
10. Mount the pedal assembly into the car. Use of high strength fasteners and safety wire for the
four mounting bolts is recommended.
peDal positioning
1. Thread the clutch master cylinder pushrod in until the desired pedal height is achieved.
Keep at least .300" of pushrod threaded into the clevis. Tighten the pushrod locking nut.
2. If your hydraulic release bearing requires the use of a positive stop, a bolt that threads into
the back of the clutch pedal and a locking nut have been provided. You may need to use a
bolt of a different length. See your hydraulic release bearing instructions for adjusting the
pedal stop.
3. Adjust the brake pedal height by threading both brake master cylinder pushrods in or out of
the clevises equal amounts. Keep at least .300" of pushrod threaded into the clevises. Tighten
the two pushrod locknuts once the proper pedal position is achieved. The pushrod has two
flats to accept a 5/16" wrench.
4. The front master cylinder will require more stroke to operate than the rear once the system
has been bled. After bleeding, check to make sure the balance bar is parallel with the firewall
when the brakes have been applied with the normal wheel locking force. If not, loosen the
locknuts, readjust, and retighten the locknuts.
5. The footpad positions can be adjusted left and right in .26" increments. The bolt pattern is
offset, so, turning the pad 180° allows the smaller increments. Always use all four mounting
screws per pad and a removable thread locking compound.
900 Series Overhung-mount Pedal Assembly
INSTALLATION INSTRUCTIONS 98
-12
06