Welding a cracked frame

[FilthyLuka]

I binned my bike, and now the weld that holds on my center stand/rear brake lever mounting is cracked. So, ima gonna strip the bike, take the frame and go get it welded. My ma (manager of a VTNZ station) pointed out that i might need a cert for any major frame welds... the weld is about 3mm thick and about 10mm long, all it holds up is my centerstand/rear brake lever.

Do i need to go and get a engineering cert? or can i get it welded properly, paint it and hope for the best?

Denis

[Ixion]

In theory you need to get it certified. But if you get it neatly welded, and paint it nicely (not obviously different to the rest), waht inspector is going to pick it up?

[degrom]

I binned my bike, and now the weld that holds on my center stand/rear brake lever mounting is cracked. So, ima gonna strip the bike, take the frame and go get it welded. My ma (manager of a VTNZ station) pointed out that i might need a cert for any major frame welds... the weld is about 3mm thick and about 10mm long, all it holds up is my centerstand/rear brake lever.

Do i need to go and get a engineering cert? or can i get it welded properly, paint it and hope for the best?

Denis

You don't need a engineering cert... Just be careful when welding because as you know heat can do wonderful things to straight metal.

Is the bike ridable as is? I have see a few GN frames on TM lately for just over $100. Tell us more... (Are you okay after the bin... )

[degrom]

In theory you need to get it certified. But if you get it neatly welded, and paint it nicely (not obviously different to the rest), waht inspector is going to pick it up?

You don't need a welding cert. to build your own frames,so why would you need one to repair them?

(Nothing wrong to have the cert to keep your mind at rest... )

[Ixion]

Not a welding cert. A LVV cert - that a LVV inspector has inspected the finished job . Same as any major crash repairs. I know it's not a major repair. But because it's the frame it gets caught up in the net.

[degrom]

Not a welding cert. A LVV cert - that a LVV inspector has inspected the finished job . Same as any major crash repairs. I know it's not a major repair. But because it's the frame it gets caught up in the net.

Very true... You can weld your own frame even if you can't weld two plates together!!!

Only problem you have is getting it past the low volume vehicle (lvv) certification or the people that check binned vehicles to see if they can go back on the road.

[Ixion]

And as the OP's bike has not been officially written off (I assume), noone but he will know it's been binned. So if he just turns up at a testing station (NOT his Mum's!) for his next WoF, noone will look twice at that weld. Or even once.

[FilthyLuka]

the bike is rideable. The weld is only cracked because of impact on the center stand... thats pretty much the purpose of that frame section, to hold the center stand. I know who's going to be welding it (not me, i cant weld to save my life) and they do this kinda thing for a living, so hopefully it will be alright. Oh, on a different note, im 15 and scrawny, can i lift out the engine by myself?

denis

[Ixion]

Yeah, a 250 single you should be able to haul in and out. Prolly weighs only 50 or 60 kg.

[degrom]

the bike is rideable. The weld is only cracked because of impact on the center stand... thats pretty much the purpose of that frame section, to hold the center stand. I know who's going to be welding it (not me, i cant weld to save my life) and they do this kinda thing for a living, so hopefully it will be alright. Oh, on a different note, im 15 and scrawny, can i lift out the engine by myself?

denis

If you have been eating three times a day... Yes.

If you have been drinking a lot of fuzzy drinks I suggest you run around the block before you lift out... You might just through it a few miles away... LOL

[FilthyLuka]

Yeah, a 250 single you should be able to haul in and out. Prolly weighs only 50 or 60 kg.

cool... hmm, i think this is an excuse for a front fork rebuild... hehe. Ill get the frame welded up, go get a WOF (expires tommorow ) and let you guys know what happens

Thanks for the help

[FilthyLuka]

If you have been eating three times a day... Yes.

If you have been drinking a lot of fuzzy drinks I suggest you run around the block before you lift out... You might just through it a few miles away... LOL

does guiness count as fuzzy?

[degrom]

the bike is rideable. The weld is only cracked because of impact on the center stand... thats pretty much the purpose of that frame section, to hold the center stand. I know who's going to be welding it (not me, i cant weld to save my life) and they do this kinda thing for a living, so hopefully it will be alright. Oh, on a different note, im 15 and scrawny, can i lift out the engine by myself?

denis

Do you have a manual for the bike... I have seen that one can save a few hours some times if you just prepare your self(even prevent a few sour fingers if you know how to not stick them in the wrong places).

I know there is a online manual going around on this forum.

[degrom]

does guiness count as fuzzy?

Does being 15, add 3 years to your age if you drink Guiness?

[FilthyLuka]

Does being 15, add 3 years to your age if you drink Guiness?

err... about that...

Ive got a service manual (all 300 pages of the bastard) for my bike, so i think it should go well. Im only a bit concerned about the wiring loom, or rather putting it back in...