damper mount allen keys

[adrain]

Waht sizes is the allen key thingies at the bottom of the front dampers and top rears 🤔 (2002 SV.) They seem like imperial sizes to me, which is a bit odd. If so, where to you get the keys to fit a 1/2 inch sq drive??

 

Thanks

 

Large viperblue/yellow 1.6 S/S

[Frying Pan]

Front lower is 5/16"

 

Can't remember what the rear uppers are (if not as above)

 

Guy

 

See some pictures of the build here. 4000 miles completed!

[Shaun_E]

Top rear is 3/8". Halfords sell them on a sort of keyring affair so not that good quality but ok for the job. I couldn't find a 1/2" drive allen key in imperial sizes. I used the Halfords one and hit it with a rubber mallet to "break the seal" and was then able to do it by hand. I think Guy is right about the front lower.

 

Yellow SL #32

[Ray Pearce]

Assuming that you have imperial size sockets, then just buy a cheap set of imperial allen keys, cut off a length of the key (it's easier to cut cheap ones) and use it in the matching sized socket.

[F355GTS]

Adrian

 

if your lower fronts are anything like Angus's you'll need an air impact wrench to get them out

 

Sizes quoted are spot on 5/16 and 3/8 and i did as Ray suggested

 

Mark

[caterhamnut]

air impact wrench, lots of penetrating spray, a weekend of air wrenching 😳 and cherry red heat if I recall...hope yours come out more easily!

 

HUGE UPDATE ALMOST WITH VIDEO

here

70,000miles in 3 years

[adrain]

Thanks very much, chaps.

 

I've now found a key for the the fronts, I'm sure there's a 3/8" somewhere here in the back of the garage .

I was just puzzled that they should be imperial sizes on a 2002 build car - just a Caterham quirk ❗

 

Large viperblue/yellow 1.6 S/S

[F355GTS]

Adrian

 

the chassis/suspension is Imperial, running gear is Metric on a K

 

Mark

[_Tim_]

5.5mm is an exact fit if you have only metric.

 

- Tim

- 2004 evo Caterham Academy, Group 2 Runner Up

build diary here