Repairing old wishbone

[kaszal]

Does anyone have any ideas how to repair this vintage wishbone? The previous owner used a nail for a hinge pin which increased the hole diameter. The 2mm pin is now loose and there is a lot of wheel wobble. I was thinking of packing it with epoxy resin then pushing through a 2mm pin, allow it to set then remove the pin. I'm afraid the pin will just get glued in there with it. Any ideas welcome.

http://i103.photobucket.com/albums/m134/kaszal/IMG_3895edited.jpg

[Oscar]

First coat the pin with grease or vaseline maybe?

[kaszal]

Oh yes, or maybe GT85 (teflon)

[mole2k]

Pack it up with epoxy then re-drill the hole?

[kaszal]

Thanks, another good idea.

I've not tried drilling epoxy (Araldite) before. Does it tend to shatter?

[mpg200]

Try sleeving the hole with some 2mm ID brass (or what ever metal you can get tube)

[bigred5765]

milliput liquid metal
fill it up and re drill

[kaszal]

Try sleeving the hole with some 2mm ID brass (or what ever metal you can get tube)

Thanks. Yes, I like that solution the most so far.

K&S do some thin walled brass tubing 2.5mm O.D. wall thickness 0.225 and 2.05mm I.D. which is ideal. I would need just need to drill out the wishbone a bit first.

There is also some 3/32" O.D. tube which seems more abundant but it the inner diameter is about 1.4mm so I would have to ream it out (I have a 2mm reamer) but I'm not sure... is it possible to a do a good job with such narrow walls?

Anyone know where the 2.5mm is in stock?

[metalmickey0]

Cant you just get a new wishbone?

[kaszal]

Too rare I'm afraid. If I can salvage this one I will. Unless you know an unlimited supply of Schumacher U268C (T268) :)

4D Models had the K&S 2.5mm thin wall tubing in stock :thumbsup:

Will post photos in the usual place when it's done...

http://www.oople.com/forums/showpost.php?p=652218&postcount=593

[metalmickey0]

Try this bloke , hes got some i see

http://forum.racing-cars.com/forum_posts.asp?TID=12643&title=procat-parts

[kaszal]

Thank you very much for the link but I already sent him a PM... he read it but didn't reply :(

[adam_u]

Too rare I'm afraid. If I can salvage this one I will. Unless you know an unlimited supply of Schumacher U268C (T268) :)

4D Models had the K&S 2.5mm thin wall tubing in stock :thumbsup:

Will post photos in the usual place when it's done...

http://www.oople.com/forums/showpost.php?p=652218&postcount=593

You don't really need an unlimited supply do you? One would do!

I think the insert would be the best option if the tolerance between it and the hinge pin isn't too tight - good luck!

[kaszal]

Well, maybe not "unlimited" but I do need to preserve as many spares as possible.

I still race my pride and joy alongside modern buggies.

Thanks for all your helpful suggestions... Oople rocks!

http://i103.photobucket.com/albums/m134/kaszal/IMG_2243.jpg

[Appie53]

Can't you 2.5mm steeldrill:(

[kaszal]

Can't you 2.5mm steeldrill:(

Not sure what you mean :confused:

[DCM]

Araldite will crumble, the sleeving method would be best, but I would suggest a reamer rather than drilling it.

[kaszal]

Araldite will crumble, the sleeving method would be best, but I would suggest a reamer rather than drilling it.

True, true... anyone want to lend me a 2.5mm hand reamer?

They seem to be around £20 :(

[MattW]

Sleeving for sure, i've done it a number of times. If required, I used to then hand drill. The tubing I used to use was aluminium - but I know you can get brass as well.

[kaszal]

The inner diameter of that K&S tubing is 2.1mm so it should be OK with the 2mm pivot pins.

[bodgit]

try http://www.greenweld.co.uk/acatalog/Shop_Aluminium_185.html
decent prices good lengths for spares

[Appie53]

Not sure what you mean :confused:

I mean this: Can't you make pins out of the tophalf from a drill, if long enough you can get it in the thicknish you need? There are drills in 2.1mm, 2.2mm etc............
In other words, make new pins from drills:yawn:
(sorry for my broken English)

[kaszal]

Thanks for clarifying. Good idea. I did think of that but I didn't want to enlarge the holes on the hub carriers too.

By the way, drill blanks of all sizes are available here...

http://www.drill-service.co.uk/Product.asp?Parent=020680040000&Tool=363

[kaszal]

4D Models were ace... I ordered about 4:00pm and got it the next morning!

http://i103.photobucket.com/albums/m134/kaszal/IMG_3903.jpg

http://i103.photobucket.com/albums/m134/kaszal/IMG_3905.jpg

http://i103.photobucket.com/albums/m134/kaszal/IMG_3910.jpg

[mpg200]

Top Fix:thumbsup:

[kaszal]

Cheers :)

I think a 2.1mm drill blank might be an even better fit... but it's still much better than it was before.