Tilton 600 Series Balance Bar (98-1250) - Manual

How It works
The balance bar takes the force you apply to the pedal and distributes it
to the front and rear master cylinders. The percentage of force that goes
to each master cylinder depends on the balance bar adjustment position.
If the center spherical joint (located in the tube) is positioned exactly in
the center of the two master cylinder pushrod clevises, then each master
cylinder sees the same amount of pushrod force. Rotating the threaded
adjusting shaft moves the spherical joint relative to the two clevises. For
example, if you turn the shaft and the spherical joint moves closer to the
left clevis, then the left clevis will see more of the force from the pedal
than the right clevis.
A common misconception is that changing the length of the master cyl-
inder pushrod will alter how much force each master cylinder sees, or that
it will decide which master cylinder builds pressure first. This is not true.
Both master cylinders will start to build pressure at the same time and the
balance bar adjustment position will decide how much force is distributed
to each master cylinder.
There are three areas of which you must pay particular attention in the
installation of the balance bar. First, the assembly must not bind-up or
bottom-out in any manner. Its ability to pivot freely is what allows it to
function. Secondly, we are concerned with the balance bar’s position
with the pedal depressed every bit as much as we are with the pedal in its
relaxed position. Diagram B shows the correct setup with the pedal de-
pressed and Diagram C shows the wrong setup with the pedal depressed.
Third, make sure there is enough firewall clearance to allow at least 1" of
stroke for all master cylinders.
B. InstallatIon
(Proceed to Step #6 if you are not fabricating a pedal)
1. Drill a hole in the existing pedal to the diameter listed in Chart 1,
based on Pivot Sleeve diameter (Item 5 in Diagram A) and balance bar
part number. This should be in-line with the horizontal centerline of
the existing master cylinder. Master cylinder center-to-center distance
should not vary more than .100" from the balance bar’s center- to-cen-
ter distance, as this would result in premature master cylinder failure.
2. Before welding the pivot sleeve, remove the pivot sleeve from the
balance bar assembly.
3. Position the pivot sleeve in the pedal and weld into place.
4. After welding is complete, slide the adjusting shaft (Item 8 in Diagram
A) through the pivot sleeve and make sure that the spherical bearing
slides freely from side-to-side without binding in the pivot sleeve.
5. If the bearing binds in the sleeve, the sleeve may have shrunk or gone
out of round during the welding process. If so, bore the pivot sleeve to
1.007" (P/N 72-250) or 1.002" (P/N 72-260).
6. Remove one clevis/barrel nut, then insert the adjusting shaft through
the pivot sleeve towards the outside of the pedal.
Chart 1
Part Number
Threaded
Diameter
Clevis-to-Clevis
Center Distance
Drill Diameter
72-250 3/8" 2.50" 1 3/16"
72-260 7/16" 2.63" 1 3/16"
Center
7
Adjustment
9
1
2 3
5
6
8
4
1. Clevis 4. Retaining Ring Clips 7. Pushrod
2. Barrel Nuts 5. Pivot Sleeve 8. Adjusting Shaft
3. Jam Nuts 6. Spherical Bearing 9. Jam Nuts (Pushrod)
Diagram A
Balance Bars
INSTALLATION INSTRUCTIONS 98
-12
50