4.2.6 Lower wishbone bushes
Press in the new lower wishbone bushes using an improvised puller as shown in Figure 1 or similar. Now fit
the lower wishbones to the chassis using the 13/16” diameter pivot pins pushed through from the rear and
installing the 3/8” spacers between the rear wishbone bush inner edge and the chassis tube (fig 4) also install
one serrated washer between the spacer and the wishbone and one serrated wishbone in front of the chassis
between the chassis and the wishbone bush. Loosely fit the large serrated washer and castellated nut.
4.2.7 Hub and brake disc
Assemble the brake disc onto the hub using the bolts supplied, before installing the wheel bearings. The
wheel bearings are supplied in matched pairs and you must keep each wheel bearing inner and outer race
together so it’s best to fit one side of the car at a time. Start with the smaller outer bearing and take the inner
bearing surface (the one without the ball race) and fit into the hub with the bearing surface facing out, ideally
this should be done with a bearing puller or on a press but it can be done with a brass drift gradually going
around taping the bearing the edge in square until it stops on the shoulder inside the hub, make sure you
don’t hit and damage the bearing surface although these are hardened and won’t damage easily. Then turn
over and move to the larger inner bearing and again take the inner surface and fit as above to the hub with
the bearing surface facing out, once both bearing surfaces have been pressed in grease the larger inner
bearing thoroughly preferably using a bearing greaser before inserting into its inner surface in the hub,
follow this by taping in the inner seal supplied in the kit before turning it over to grease and install the
smaller outer bearing.
4.2.8 Fitting the hub
After ensuring that the hub bearings are correctly charged with grease. Install the hub on the stub axle and fit
it with the D washer and hub nut. Adjust the front hub bearing running clearance as per Haynes manual
Chapter 11, section 5, most importantly make sure both front wheels have the same resistance as if one
wheel is tighter the car will pull to that direction. Once tight fit the split pin cap and split pin before fitting
the end cap. The bearing can now be packed with grease using the grease nipple until grease comes through
the hole in the end cap.
4.2.9 Coil over dampers
Next take the front coil over dampers and fit the coil springs to the dampers using a coil spring
compressor, this may have already been done by Suffolk Sportscars if not take care when compressing coil
springs
as they can slip without warning. Set the spring height and damper setting to the base settings
advised in figure 23.
4.2.10 Coil over
damper mounting plate and steering lock stop
Fit a coil over damper unit to its lower mounting plate (1/2”UNF x 21/2” bolt & nyloc nut with nut facing
rearwards) torque damper mounting bolts to 50 ft-lb. After mounting to the plate attach under the wishbone
using two 3/8”UNF x 2 3/4” bolts & nyloc nuts and two 3/8”UNF x 1” set screws plus plain washers &
spring washers. Its not unknown for the nyloc nut at the bottom to need to be shortened slightly as it’s a tight
fit between the wishbone, this is best done on a lathe, Suffolk Sportscars can send thinner nuts if required.
At the same time as fitting the plate below the wishbone on the top of the wishbone fit the steering lock stop
with the tab at the front and pointing towards the hub, this stops the steering from going to far and the
steering rack lock nut catching on the wishbone, these can only be adjusted fully when the car has settled on
the ground.
4.2.11 Coil top mount
Now attach the top of the coil over damper units using the 1/2” UNF x 31/2” bolts placing the 1/2” ID x 1/2”
spacers either side of the bush for the upper mounting to centralise it and keep the bushes from moving,
torque damper mounting bolts to 50 ft-lb.
4.2.12 Dummy André Hartford, wish bone nuts
Fit the dummy André Hartford shock absorber mount to the front upper & lower wishbone pivot pins. Now
torque the upper wishbone pivot nuts to 50ft-lb and the lower pivot shaft castellated nut to 45ft-lb and fit a
split pin. The dummy adjuster and star can also now be fitted.
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