Will solder work?

[Wanderer]

The clock case on my R90s was cut in half by a previous owner (I can only imagine in order to fix the inner workings?). When I bought the bike it had been taped together with elecrtical tape.

Replacement clocks (with white numerals) are like rocking horse ****, so I need to fix somehow. I've tried electrical tape, but it came undone. Would solder work in rejoining the two case halves on a more permanent basis?

 

[Packer]

I'm not familiar with those clocks but ordinary (soft) solder has very little strength. Maybe a big stainless jubilee clip right around it with some flexible sealer to keep the moisture out. Hide the tightening mechanism underneath the unit.

If that's all bo..ox it's at least an idea.

 

[jimbo]

Careful glueing?

 

[Wanderer]

Thanks chaps, I didn't realise that solder has so little strength. Thanks for the other suggestions. The way they're mounted jubilee clip may get in the way. I'll take another look.

 

[centaur]

If there's sufficient internal clearance, it may be possible to use a thin metallic or perforated metallic strip (like an elastoplast) coated in some epoxy resin, on the inside of the case. You may need to roughen the case up to get good adhesion. Otherwise, perhaps drill small holes and use rivets and a metal plate ?

 

[Wanderer]

If there's sufficient internal clearance, it may be possible to use a thin metallic or perforated metallic strip (like an elastoplast) coated in some epoxy resin, on the inside of the case. You may need to roughen the case up to get good adhesion. Otherwise, perhaps drill small holes and use rivets and a metal plate ?

Now that's a very neat idea. A thin metal strip glued from the inside on one halve of the case, then slip the other halve of the case on the protruding part of the metal strip. A hidden fix! Any idea on sources for thin very flexible stips of metal?

 

[thornley]

Now that's a very neat idea. A thin metal strip glued from the inside on one halve of the case, then slip the other halve of the case on the protruding part of the metal strip. A hidden fix! Any idea on sources for thin very flexible stips of metal?

I've got some thin aluminium in the garage, tell me the size, I'll cut post a couple of strips. You'll owe me the price of a stamp if it works!

 

[Wanderer]

I've got some thin aluminium in the garage, tell me the size, I'll cut post a couple of strips. You'll owe me the price of a stamp if it works!

I only live in Standish!

 

[thornley]

I only live in Standish!

Standish that's the South!. PM me if you want to collect a couple of bits, probably cheaper to post.No charge for a bit of ali. Had an R90S, R100RT, R100RS, R65, R800RT, R100GSx2 and service one for a friend who lives on the Blackburn road. Have you changed the pin on the clutch actuating mechanism, back of gearbox?. Standard one has circlips at both ends, one circlip comes adrift and the cast support, part of the gearbox cover breaks, I've recently replaced the gearbox end for him as a result. Pin is usually replaced with a bolt with a nylock nut. If you havent, do it, it just cost him a small fortune in parts for the cost of a stainless bolt. I'll give you the bolt if you need one.

 

[Wanderer]

Standish that's the South!. PM me if you want to collect a couple of bits, probably cheaper to post.No charge for a bit of ali. Had an R90S, R100RT, R100RS, R65, R800RT, R100GSx2 and service one for a friend who lives on the Blackburn road. Have you changed the pin on the clutch actuating mechanism, back of gearbox?. Standard one has circlips at both ends, one circlip comes adrift and the cast support, part of the gearbox cover breaks, I've recently replaced the gearbox end for him as a result. Pin is usually replaced with a bolt with a nylock nut. If you havent, do it, it just cost him a small fortune in parts for the cost of a stainless bolt. I'll give you the bolt if you need one.

Many thanks for the tip. PM sent

 

[bustupbiker]

***Have you changed the pin on the clutch actuating mechanism, back of gearbox?. Standard one has circlips at both ends, one circlip comes adrift and the cast support, part of the gearbox cover breaks***

I'm off into the garage to take a look at mine now, many thanks...
Lyn.

 

[Egon]

Now that's a very neat idea. A thin metal strip glued from the inside on one halve of the case, then slip the other halve of the case on the protruding part of the metal strip. A hidden fix! Any idea on sources for thin very flexible stips of metal?

We use aluminium foil that is sticky backed if thats any use to you.
Its 1/3 of a mm thick but still has some strength to it.
You could use a few layers.
Let me know if you want any.

 

[Wanderer]

We use aluminium foil that is sticky backed if thats any use to you.
Its 1/3 of a mm thick but still has some strength to it.
You could use a few layers.
Let me know if you want any.

Thanks very much, very kind offer

I'm going to try the metal strip approach first - in effect a metal collar matching the inside diameter of the clock case. Glue one half of the collar and slide inside one half of the case, leave to dry. Then glue the other half of the collar and slide on. Sounds simple (!) and should produce an 'almost' invisible fix.

 

[Hew]

I was going to suggest that the car parks are full off thin metal strips but there is some even closer to you. Tin and aluminium drink cans

 

[thornley]

***Have you changed the pin on the clutch actuating mechanism, back of gearbox?. Standard one has circlips at both ends, one circlip comes adrift and the cast support, part of the gearbox cover breaks***

I'm off into the garage to take a look at mine now, many thanks...
Lyn.

Post 1981 BMW replaced the pin and circlip arrangement with a bolt because of the problem with lost pins or worst case broken gearbox casing lugs. So check it out, easy to replace with a stainless 8 mm cap head with sufficient un threaded shank cut to length, couple of washers and a nylock nut.