Chapter 36 Restoration Assembly, Week Three 1/1/2007

The New Year itself began with attention turning to the front suspension of the Bloody Beast. The first step was the assembly of the swivel axles. Bruce Phillips at Healey Surgeons rebushed and reamed the axles for me and supplied new swivel or “king” pins.  I then applied a light coating of moly to the pin itself and slid the cork washer, with the chamfered edge down, onto the pin. The swivel pin can then be inserted into the axle and three thrust washers are applied to the top of the pin. One “oilite washer” is sandwiched between two “staybright” washers. The oilite washer was first soaked overnight in motor oil. The top trunnion was then placed over the top of the swivel pin and tightened down with a nylock nut. .002” is the maximum permissible lift.

Swivel Pin Spring

Swivel Axle

Swivel Pin lower trunnion

Upper Trunnion washers 3

Upper Trunnion tightening

 

I then collected the components needed to assemble the swivel axles to the frame. These included two paired control arms, the assembled swivel axle, the control arm and upper trunnion bushings, the necessary cotter pins, the shock damper, the lower trunnion bushings, cork seals and the lower link fulcrum pin.

Front Suspension Assembly 2

The factory workshop manual provides a very helpful illustration of the components and their relationship to each other.

Front Suspension Schematic

 

I had paint inside the journals of the control arms and the shock dampers, as well as the holes for the cotter pins so it was first necessary to clean these areas so the paint would not restrict access.

Control Arm Paint

To assemble, I had the side of the control arms with the flats for the cotter pin nuts facing down. I then fastened the spring plate to the control arms so that the alignment of the assembly would be correct. The grease fittings on the lower trunnion bushes face the front of the car. The cotter nuts should be tight but not so tight as to risk distortion of the bushes. The bushes are tightened to the control arms and then backed off a flat. A .002 feeler should be able to be inserted between the face of the bushing and the control arm.

Control Arm Cotter Pins

Lower trunnion components

Lower trunnion in place 2

Front Suspension Asembly 1

 

Then the time came to secure the swivel axle assembly to the car. Again, the first step was to remove paint from the frame openings that received the pins.

Cleaning hole for pin

Next the small shock rubber bumpers were screwed onto the shock mounting plate. The shock damper sans its valve was fastened to the frame, and Udo Putzke’s tube shock conversion upper bracket was also bolted in.

Front shock 7

 

Getting the face plates of the lower fulcrum pin washers to line up can be a challenge, so before final assembly, I pressed them against the frame fitting and marked a line on the face plate and the frame to make alignment much easier later.

Marking pin placement

The poly bushings were then placed on the pins and the control arms were lifted up to the frame. A screwdriver was used in the upper link to support the weight of the assembly while it was positioned to secure.

Front poly bushings

 

As per the workshop manual, a two inch block of wood was inserted under the lever shock to lift it to the proper ride height and then the shock and the lower fulcrum pins were tightened. A split pin was inserted into the hole through each fulcrum pin and bent back.

Temporary pin for shock

suspension spacer

Installed axle assemblies

 

The next task was to install the spring plate and springs, the lowering spacers and bolts, the bilstein shocks, the disc brake dust shield and the caliper mounting bracket. These steps were complete for the left and right hand side of the car.

I used four pieces of 3/8” fine thread rod to help install the springs. The two rear rods were cut to about 7” lengths and the two front rods were about 5.” I also used long extension couplers and a flat washer on the rods below the spring plates to make it easy to access the nut with the wrench. A single regular nut would “hide” under the plate and be hard to get to. This arrangement worked well.

Installing coil springs

The spacers from Denis Welch were inserted between the spring plate and the control arm and the lower nuts were screwed up tight with the spring in place. Then one at a time the nut was taken off the top of the rod, the rod was tapped out of the hole through the control arm and spring plate and the longer than normal fastening bolt from the Welch lowering kit was installed.

Lowering Spacers 2

 

The Bilstein tube shock was then put in place and tightened with nylock nuts. This required lifting the shock with a bottle jack so that its bottom fixing hole would line up with the bracket on the control arm. 

The rubber seals were then glued to the dust shield. I discovered that they probably did not need to be glued as they are a tight fit once the dust shield and the brake bracket come together. The steering arm, brake bracket and dust shield were then bolted to the swivel axle. A tab washer is used on the lower two bolts. The wood spacer block will remain in place until the wheels/tires are installed and the car is lowered to the ground.

Dust shield installed

Chapter 18 – Cleaning and Trial Fitting

April 18, 2004

Front Suspension Installation Continued 

I had the front swivel or king pins refurbished by Bruce Phillips at Healey Surgeons. I then followed the steps in the workshop manual:

Fit the new lower fulcrum pin into the lower trunnion being careful to center it, and then secure it with the two cotter pins. 

Placed the cork rings in their recesses on the lower trunnion and then fit the lower wishbone arms to the trunnion. Ensured that the half-moon cotters were correctly positioned and then greased and screwed the new steel bushes partially home.

Bolted the lower spring plate to the wishbone arms to establish proper positioning.

Threaded the steel bushes home evenly and then backed off a flat or two until .002” feeler gauge will fit between wishbone arm and the bush. Tighten cotters but was careful not to overtighten. The lower trunnion assembly should operate freely in the screwed bushes.

Place the cork washer on the top of the swivel pin and pushed it down to the bottom. Smeared swivel pin shaft with engine oil and placed the hub assembly on the swivel pin.

Fit a staybright washer followed by an oilite washer and then another staybright washer on top of the hub assembly on the pin. I soaked the oilite washer in oil overnight so that it would absorb the oil into its pores. 

Fit the upper trunnion and swivel nut. Nut should be tightened down (40 to 60lbs of torque) to allow a maximum of .002” lift. Pin should turn freely but snuggly.

Then released swivel pin nut.

Removed the spring plate from the wishbone arms to gain some flexibility in fitting the arms to the frame brackets.

Fit the two poly bushes to each lower wishbone link and pushed them into the frame brackets. 

Replaced the spring plate.

Inserted the fulcrum pins through the bushes and installed the second set of bushes through the frame bracket. Put the special washer with tab locator on the back of the bracket and lightly secured with a castel nut, not screwed home.

Fit the lever shock to the shock tower and insert mounting bolts. Fit the Putzke’s tube shock conversion bracket on the front of the lever shock with special long bolts and tightened lightly.

Front suspension left 6

Front suspension left 7

Placed the new upper trunnion bushes in place. I used poly bushes supplied from Udo Putzke.

Loosened the shock absorber arm mounting bolt.

Placed the upper trunnion with the bushes in position between the shock arms. Refit the fulcrum pin and tightened lightly after securing to the shock absorber.

Then set the assembly under proper load position. Accomplished by placing a two inch block (distance piece) under the shock arm opposite the rubber buffer.

Front suspension left 4

Tightened the fulcrum pin castle nuts for the lower wishbone arms in the frame brackets and insert split pins.

Tightened the four shock bolts to the shock tower plate. 

Tightened the upper trunnion fulcrum pin nut and place split pin.

Removed the spring plate and then used 3/8” threaded rod in seven inch lengths to hold new coil spring and plate in place. The lower mounting bracket for the Putzke tube shock conversion was attached to the rear lower wishbone arm at this time.

Front suspension left 2

Gradually tightened the rods until fully in place. Then replaced rods with proper spring plate bolts and tightened.

Installed new tube shock which required jacking up the shock tube slightly to align the mounting holes.

Front suspension left 5

April 24, 2004

Front Shroud Grill 

I couldn’t resist finding out how the grill would look in the shroud so I polished the original upper surround piece and installed it along with the Austin Healey motif on the shroud. The motif came from Hemphills and looked good. The upper surround uses 1/4” – 28 x 5/8” with two #10 – 32 x 1/2” screws on the left and right sides. The motif pieces has #8 posts.

Grill brow mounting

Grill brow

Grill exterior side mounting

Healey Shroud Motif

May 9, 2004

I borrowed Jeremy Turner’s cert nut pliers and installed cert nuts where the original fixed nuts were once located – light relay, insulation panels, dimmer switch, boot floor tie down staple and etc. Slow job but the nuts seem to work effectively. You drill a 9/32” hole for the #10 cert nuts and a 3/8” hole for the 1/4” cert nut. Then I installed the spare tire bump block on the left side of the boot wall. This block is supposed to use fixed nuts but I decided to use nuts with lock washers instead.

Spare Tire block

Motor Mounts – Removed the motor mounts from the motor to take to Jeremey’s for blasting and painting.

Motor Mount – Left 1

Motor Mount – Left 2

Motor Mount – Left 3

Motor Mount – Left 4

May 16, 2004

Front Suspension Again

Front Shocks – Installed right front lever shock. Left the rear bolts loose and fit the Putzke tube shock mounting bracket to the front two mounting holes. Inserted the two inch wood block spacer to set the height of the suspension. Loosened the shock absorber arm bolt and nut so that the shock will receive the trunnion.

Putzke shock adaptor – right front

suspension install – right

Control Arm Base Plate – Used 3/8” threaded rods to install coil spring with plate

coil spring install

Disk Brake Dust Shield – Attached dust cover assembly to the front left spindle axle with two short bolts at top. I installed with the caliper attached but it will need to be removed before installing the rotor and hub. Attached new stainless steel brake hose from pipe to caliper bracket. Secured the left steering arm to the back of the swivel axle and used the tab washer to lock both bolts.

Dust shield – left

Brake hose connection left front

Steering arm – left installed

Tab washer on suspension

Front Brake Rotors and Hubs – Fastened rotor disk to the hub extension with 5 nylock nuts. Placed bearing races in the freezer so they would be easier to install in the front hub extensions. Then inserted inside bearing race with proper driver with application of a hammer!, being careful to keep the race/driver straight. Turned the hub over and did the same procedure with the outside bearing race.

Inside front bearing race install

Left front inside bearing – 126-000 GHB105

SET 6 LM67048 – LM67010

20031255

Left front outside bearing – 620-234 GHB182

07196

20030322

Left front bearing race- 620-231

07087

20030522

Right front inside bearing – 126-000 GHB105

SET 6 LM67048 – LM67010

20031255

Right front inside bearing – 620-234 GHB182

07087

20030522

Right front bearing race – 620-232

07196

20020422

Front Hub Bearings – I followed directions from Bruce at Healey Surgeons and put 90 weight oil on the inner bearing and offered it up to the spindle. The oil will provide protection from damage due to bearing running dry but at the same time, not give a false reading when trying to shim the bearings.

I then placed the spacer (cone) on the spindle followed by the hub extension. I then put an oil filled outer bearing on the axle followed by the tab washer and castle nut. The seal and shims were NOT added at this stage. The nut was tightened down to seat everything and then the works were disassembled. It can be difficult to get the outer bearing and the tab washer off – I used a magnet that worked quite well.

I then put the inner bearings, the spacer and selected shims on the axle. Starting with the thickest one .030, then .010, .050, .030, ( one of each ). I then put the hub extension on the axle followed by the outer bearing, tab washer and nut. I tightened to 40 lbs of torque and determined if one of the castle nut slots lined up with the hole in the axle for the split pin. Need to take care that the shims are all the way up on the shoulder of the spindle axle so that they do not get mangled when the nut is tightened. The final proper adjustment is correct when you can tighten on the nut and the wheel does not show any reduction in ease of turning with no play. 

If it drags when you tighten the castle nut, then you need to add shims. If it is to loose, you need to remove the shims, When it is correct, re-tighten to the correct specs. At this point, the hub should be turning freely, with no end float and no pre-load.

Once you are satisfied that you have the bearings set up correctly, then remove everything. Make sure you keep track of the shims! Now pack the wheel bearings with wheel bearing grease and install your front seal (don’t forget this step). You need to place the spacer in the hub extension and bearings in first, and then reassemble unit.

Place the split pin through the hole in the spindle axle, and then pull one tab of the pin forward and bend it back over the axle end. Then push the grease cap on to the axle ( do not fill it with grease). Reinstall brake caliper.

Front Suspension Installed

Front suspension installed 2