Katana Owners Club U.K.

Hi, anyone know the best way to repair crankcases with a chunk missing? The lower crankcase on my 1100 project has a chunk missing just at the bottom of the ignition side as it has clearly been dropped at some point. I would say the missing part must be the size of a 10p approx.
Do I bend some ali and try and find a welder that can weld it in and dress it up? or do I buy a bottom crankcase, although from memory you have to buy pairs as I think they may be line bored?
Any ideas please

There's some DIY stuff called Lumi weld...............Google it!

Or take it to a local engineering/ fabrication firm and get them tAlloy weld /fill / repair it then just dress it with file, dremmel ,etc.........Make sure the electrics arnt connected or they can blow with the High voltage used on TIG welding.

chemical metal. its not a stressed area and not full of oil, just chemical metal and smooth it off before you paint it.

Thanks Bobster and Johnr. Wasn,t sure if a build up of weld might distort the cases? I had my efe cases welded a few years ago near to the clutch cover and it distorted the clutch gasket surface. Is there a way of not doing this?
Never used chemical weld, Is it easy to shape?

Even I have used chemical metal successfully!

fossie wrote:Even I have used chemical metal successfully!

its just a 2 part epoxy. make sure everythings clean first. follow the instructions on the pack. dont fret too much, you can smooth it off with wet and dry afterwards!

i know of very good ally welder in manchester if you want to do it properly,

he did some crankcase and block(fin) repairs for me, very reasonable too

Thanks H, if you can message me his details I will have a chat with him and make a call which way to go. Thanks for your help

kickstart motorcycles.
86 Hewitt Street
Manchester
M15 4GB
0161 236 2777