lower crankcase damage

spondonchris · Post by **spondonchris** » Thu Feb 06, 2014 6:15 pm

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

bobster · Post by **bobster** » Thu Feb 06, 2014 6:54 pm

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.

johnr · Post by **johnr** » Thu Feb 06, 2014 7:05 pm

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

spondonchris · Post by **spondonchris** » Thu Feb 06, 2014 9:44 pm

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?

fossie · Post by **fossie** » Thu Feb 06, 2014 10:12 pm

Even I have used chemical metal successfully!

spondonchris · Post by **spondonchris** » Thu Feb 06, 2014 10:17 pm

fossie wrote:Even I have used chemical metal successfully!

johnr · Post by **johnr** » Sun Feb 09, 2014 6:16 pm

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!

lomsavage · Post by **lomsavage** » Sun Feb 09, 2014 8:14 pm

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

spondonchris · Post by **spondonchris** » Mon Feb 10, 2014 5:54 pm

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

lomsavage · Post by **lomsavage** » Tue Feb 11, 2014 9:57 am

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

Katana Owners Club U.K.

lower crankcase damage

lower crankcase damage

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