I think this may be the end of my mk3. Once all the bits are off I will get a better look and then consult my weding expert

Your wife or a welder .

Doesn't look good though .

knackeredMk1 wrote:Your wife or a welder .

Doesn't look good though .

I need to sort out this keyboard

Is there a crack on the piece that the cylinder headbrace goes on - round the weld .

You obviously need to examine the rest of the frame.

Cracking caused by engine vibration (high frequency). No problem getting it TIG welded, do not try any other type of welding on the frame.

I have an AR frame in white With log book that you could have for £50 if you need one, needs a small weld at sidestand mount just like every one I have bought.

helisupp wrote:Cracking caused by engine vibration (high frequency). No problem getting it TIG welded, do not try any other type of welding on the frame.

I have an AR frame in white With log book that you could have for £50 if you need one, needs a small weld at sidestand mount just like every one I have bought.

I'll keep that as the reserve option. Hopefully the Mk3 can live another day to get the nuts thrashed off it and beat some more orange stuff

knackeredMk1 wrote:Is there a crack on the piece that the cylinder headbrace goes on - round the weld .

You obviously need to examine the rest of the frame.

The crack is on the other side as well. I'm not holding out much hope but Helisup will let me have an AR frame so all is not lost. As Helisup says, high frequency vibration probably from no balance shaft and lots and lots of thrashing the wotsits off it.

helisupp wrote:Cracking caused by engine vibration (high frequency). No problem getting it TIG welded, do not try any other type of welding on the frame.

I have an AR frame in white With log book that you could have for £50 if you need one, needs a small weld at sidestand mount just like every one I have bought.

I'll have the frame and plastics off you. Where abouts are you in the country?

No problem getting it TIG welded, do not try any other type of welding on the frame.

why do you say that?

I have had several welded so far, the frames are fairly thin walled and TIG is the most delicate way without blowing holes in it or making a mess.

Amazing how many people want the frame for £50, its only available to mudfacetony due to his cracked frame, or it stays in the shed.

Sorry but its collection only...........

Ouch mud sorry to see that mate hope you get it sorted ok
helisup very generous of you to offer mud the frame for that price nice too see some one helping someone else out :)

Rebuild on the way!

Thanks Helisup for the help.

I might even post some pics when it is done. It won't be to the no1 standard of Helisup or Knack'd as it will be for thrashing the wotsits off it at rallys but it should be a tidy bike - and some one off D&D graphics!

so just need a delicate hand...I would gas weld it and not risk arc for sure, small reinforcement over it and away you go! (but thats cos I can't TIG)




quote="helisupp"]I have had several welded so far, the frames are fairly thin walled and TIG is the most delicate way without blowing holes in it or making a mess.

Amazing how many people want the frame for £50, its only available to mudfacetony due to his cracked frame, or it stays in the shed.

Sorry but its collection only...........[/quote]

The only gas that you could use is for brazing.

Repiared



Now for getting it powder coated, the purists won't like it though