Era Replica Automobiles 427 ROADSTER, Assembly And Service Manual

Page: 146 / 165

SECTION H -FINAL OPERATIONS -
146
ALIGNMENT
Specifications below are for street driving. Competition
settings will differ.
See pages 97 for suspension assembly. The chassis height
should be within the specifications given on page 145.
f\camber
FRONT
Note! Some automated alignment machines require a
specific car to tell the operator how to move shims. The
closest production car is the ’73-’76 Chevrolet Monte Carlo.
Camber 0 deg. +/- 1 /
4

Adding a
1
/
8
" shim at each bracket bolt will increase
camber by approximately 1 /
2
deg. Use standard 1975
Chevrolet Camaro shims or their equivalent.

All ball joints, outer tie-rod ends and wheel bearings
are Chevrolet. The upper control arm pivot shaft is
an aftermarket part for the same application, but is
offset for more camber adjustment. Replacement
part numbers are on page 154.
Caster 4 1 /
2
deg. +/- 1 /
2

The caster value of the left and right sides of the car
should differ by less than
1 /
2
deg., and the right
caster should always be equal or greater than the
left to compensate for road crown.

Shifting a 1 /
8
" shim from the front of the bracket to
the rear will decrease the caster by about 1 1 /
4
deg.
Toe-in:
1
/
16
"- 1 /
8
" (0.1-0.2 deg/side)

Loosen the jam nut on each tie rod. Rotate the inner
tie rod inside the rack boot to adjust. Each turn of
the tie rod relative to the end will change the toe by
about
3
/
16
". With the ERA steering gear , equalize
the distance between the tie rod center and the end of
the inner sleeve.

Once the toe is correct, remove the steering
wheel/hub from the splines and re-install so that is
centered. Temporarily install the large washer, wave
washer and nut, torquing to 10 lb-ft. Final
adjustment of the wheel can be done after the car is
test-driven. When the steering wheel orientation is
correct, tighten the column hub nut to 25 lb-ft.
Install the hub center cap as described on page 115.
REAR (JAGUAR)
Camber - 3 /
4
deg. +/- 1 /
4
Toe-in 0.00 to
1
/
16
" (0 to ¼ deg) toe-in per side

Adjust Camber by adding or removing shims from
between the brake rotor and the inner drive-axle
flange. A 0.020” shim will change camber by ¼
degree. Most setups will require only one shim, less
than is normally used in the original car so you will
have extra ones left over. New shims are available
from us, your local Jaguar dealer, or Special Interest
Car Parts.

The rear wheel toe-in is not individually adjustable.
If the toe is out of range, the lower control arms must
be bent or replaced. Tracking (longitudinal
alignment of the front and rear suspensions) may be
changed by adjusting the length of the trailing arms
at the rod end to shift the assembly in the chassis.