Girling shock bushing

Does anyone know of a source for the rubber and metal bushings for the stock Girlings?
My MKIII Girlings function well, but the rubber inserts have deteriorated. Thanks in advance for any help.

You could try Alf Hagon, as they took over Girling production, but tell him they are for the Girlings as they have changed dimensions over the years.

RGM do them:
http://www.rgmnorton.co.uk/dept/shock-a ... d01161.htm

Somewhere, there has to be a cheaper generic equivalent but I haven't found it yet. They sell for 50$ for a set of 4 in the states. Time you buy those, you're almost half way to a new pair of shocks.

Thank you for the information.

Perhaps your shocks were on a '73 originally. Maybe they got them made correctly by M3.
http://auto-recalls.justia.com/norton/7 ... index.html

Try this mob maybe
http://www.vintageandclassicshockabsorb ... 4578272652

These guys may have spare parts
http://www.burtonbikebits.net/rear_shocks.htm

I use Ikons so would contact them for parts to fit the ferrules.
http://www.ikonsuspension.com/

or try these places for various Girling spares to suit.
Refer http://www.google.com.au/url?sa=t&sourc ... 0515,d.dGY
Ta.

needing said:

Perhaps your shocks were on a '73 originally. Maybe they got them made correctly by M3.
http://auto-recalls.justia.com/norton/7 ... index.html

Click to expand...

That recall has little to do with "rubber inserts deteriorating" which, after 40 years is to be expected, but was a metal fatigue problem caused by the shock lower eye mount being fastened too rigidly (see: Section F5 of the Mk.3 factory manual http://britmoto.com/manuals/Manuals/850_man.pdf but note that the 0.755" sleeve length given in F5, Fig. 14 appears to be too short!)

Nothing as yet has been said that would suggest nberg's "Mk3 shocks" were either on, or intended for, a pre-850Mk3 model, however, the standard Girling Mk.3 shocks should have wider (0.942") lower mounting bushes/sleeves. If shocks with narrower lower sleeves are fitted to a Mk.3, then the lower mountings may need to be shimmed accordingly to give the required free movement and also that the shocks aren't leaning away from each other.

These bushes can be found listed under their original Girling part numbers, which are:

0.375" (3/8") x 0.942": 64533645/64541661,
0.375" (3/8") x 0.755": 64533658.

Edit: According to Old Britts: "The MK3 top shock frame brackets are a bit farther apart than all the previous Commando frames requiring a wider bushing. You can press out the standard bushing and press in the MK3 bushing or add a couple of washers to fill the gap when the standard top shock mount is used. The standard bushing is .75" thick where the MK3 busking is .95" thick."
http://www.oldbritts.com/13_062179mk3b.html

However, a .95" bush would certainly be too wide to fit between the top shock mount plates of my Mk.3.

Make up a polyurethane bushing? How would that affect the ride?

Stephen Hill

Stephen Hill said:

Make up a polyurethane bushing? How would that affect the ride?

Stephen Hill

Click to expand...

That should work a treat given that the spring is the actual shock absorber with the body unit providing damping.
The rubber bushings exist to provide a cheap mounting design that permits rotational torsion spring movement as the unit is compressed and rebounds.
As LAB points out, the bushes are stuffed because they are 40+ years old (just sitting will perish them) - so the rebound rubbers are probably knackered too and the seals would also be questionable. If the bike has actually been ridden for/during that time the internal mechanicals of the dampers and retainers are likely worn out too.
Ta.