Started on the rear suspension upgrade today. Really rather straight forward. As the car has (by the looks off it) never seen some serious rain or dirt, all the bolts came out without a problem. The only parts that had really suffered were the bump-stops ...
On the left the remains of one of the original ones and on the right the new polybush one (Superpro).
Working on the rear suspension I prefer the car to be on the ground so you can use a trolley jack under the axle to adjust and manoeuvre it, so it is easier to put the bolts back in.
As you can see in the picture the car was fitted with Spax dampers, and they were indeed past their prime. If you pushed the rear off the car down it would take several seconds for the back to rise again despite it being almost on it's lowest setting and having rather strong rear springs. Luckily I had a set off brand new (very old stock) Koni's lying around (got them for free from the owner off an old Leyland garage).
They look like Koni Classic's but they are not. They are in fact "Special D" dampers, which means that both in and outgoing strokes are adjustable. As they are rather old I am curious how long they will last ... Also the springs were changed from something very firm for 200 lbs ones as supplied by Neil Revington.
Next job is to adjust the valve clearances, some machining on the top cones off the front suspension and replacing the front suspension.