Longacre 78250 Camber Gauge User Manual
Warning, Instructions for caster/camber gauge, Q turn wheels 20
Instructions For Caster/Camber Gauge
1) Find a level place to set up your front end.
Q
Read to the center of the bubble.
Q
Camber uses outside vials and reads in 1/4
O
.
Q
Turn wheels 20
O
to R & L of center when setting caster w. vial type gauges.
Warning:
Do Not leave the gauge in the hot
sunlite or store in a place over
120
O
F. Breakage of the vials
could occur due to heat expan-
sion.
Replacements can be ordered from any authorized
dealer or the factory. Replacement is simple with no loss
of accuracy.
2) Attach the gauge to the spindle. If you have a magnetic adaptor be sure that the surface you
attach to is machined square to the spindle and doesn't have any nicks or burrs.
BE SURE WHEELS ARE POINTED STRAIGHT AHEAD WHEN SETTING CAMBER.
With the thread-on type adaptor be certain the spindle threads are free of burrs. Usually there are a few extra threads
on the spindle. If not you will need to remove the spindle nut and install the adaptor in its place.
3) Rotate the gauge until the small vial at the end of the gauge shows level.
4) Read the CAMBER directly on one of the two vials on either side of the gauge. Note that they
are marked + and -. Read the line nearest to the center of the bubble. Each line is 1/4
O
.
5) To read CASTER first turn the wheels 20
O
to the right when setting the RF and to the left when
setting LF. If you don't have a set of turn plates you can use the angles machined on the corners
of the gauge as a reference. Turn the wheels until the angle is parallel to the side of the car.
Rotate the gauge until it is level.
6) Turn the knurled nob in the center until the center caster vial reads 0
O
. Now turn the wheels
back past center to 20
O
the opposite way - for a total of 40
O
. Rotate the gauge again to level
(DON’T turn knurled knob). Read the caster directly on the center vial. Read to the center of the
bubble. Each line is 1/2
O
.
NOTE: If you need to measure more than 12
O
caster - racing karts for example - turn
the wheel 20
O
and set the enter vial at negative 4
O
instead of 0
O
. Proceed as above and
add 4
O
to the reading. This will give you a total range of 16
O
.
NOTE: Adjusting the caster may have an effect on
the camber and vice versa. Double check all your
settings before finishing. Be sure to tighten all
suspension bolts when done.
7) Adjust the caster and camber as needed. Each time you make a change bounce on the front
end to settle the suspension. Remove the gauge and reinstall the spindle nut if needed.
20
O
20
O
VIAL TYPE CASTER ONLY
Turn wheels 20
O
each way
when using a vial type gauge