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Teds new project a CB500 K1 mostly version 0.5 circa 1972.
Matt_Harrington:
--- Quote from: McCabe-Thiele (Ted) on October 08, 2022, 09:44:48 AM ---
--- Quote from: K2-K6 on October 07, 2022, 10:09:45 PM ---They bend if the bike falls off it's sidestsnd when stationary, not particularly strong.
It's usually the right one bent when the bike is parked with bars to left and "rolls" off the stand, or not fully stood onto stand securely.
You can heat it to bend back, but don't quench it afterwards.
--- End quote ---
I only have a Plumbers Calor Gas Torch would this heat it enough or does it need Oxyacetalyne heat?
--- End quote ---
MAPP gas might do it....
Matt
McCabe-Thiele (Ted):
MAPP gas might do it....
Matt
[/quote]
Taking into account the minor top damage if they are about in the UK a used replacement might be the best option.
K2-K6:
That may be hot enough as you've only to get it glowing dull red to get it moving. The very tip of the blue flame is hottest and will let you target the stop easily to try it. There's at least no risk of going over temperature, just that it may soak the heat out into the rest of the structure fast enough to prevent that bit getting hot enough. You'll soon see though if it's possible (if you do it in dim light you'd see colour change more easily) and just tap it gently with a metal hammer.
Roughly if it's red temp you should be able to gently tap it, yellow and it would push with a drift but doubt you'll get it to yellow with just gas.
It's pretty safe as the only risk is not getting warm enough to move.
If you don't want to tap the metal directly, then just place a ring spanner over the peg loosely and you can tap that to move it.
McCabe-Thiele (Ted):
--- Quote from: K2-K6 on October 08, 2022, 10:33:28 AM ---That may be hot enough as you've only to get it glowing dull red to get it moving. The very tip of the blue flame is hottest and will let you target the stop easily to try it. There's at least no risk of going over temperature, just that it may soak the heat out into the rest of the structure fast enough to prevent that bit getting hot enough. You'll soon see though if it's possible (if you do it in dim light you'd see colour change more easily) and just tap it gently with a metal hammer.
Roughly if it's red temp you should be able to gently tap it, yellow and it would push with a drift but doubt you'll get it to yellow with just gas.
It's pretty safe as the only risk is not getting warm enough to move.
If you don't want to tap the metal directly, then just place a ring spanner over the peg loosely and you can tap that to move it.
--- End quote ---
Thanks for the information K2-K6 I will give it a try on Monday - I'm still left with the slight damage to the very top & a less than perfect thread.
Update: I'm going to fit a 550 column from Gary the top threads worry me. I can always play around with the original one later.
Laverdaroo:
Get yerself a thread file Ted, fantastic bit of kit and used surprisingly often taking these old girls apart.
Saved me heaps being able to sort threads out on danaged parts.
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