Author Topic: Side stand without its pin - repairable?  (Read 740 times)

Online Greybeard

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Re: Side stand without its pin - repairable?
« Reply #15 on: 31.10. 2018 07:51 »
I have a feeling that 'MAPP' is a gas 'cocktail' possibly including some butane, but I'm not sure, no expert.
It is certainly hot enough for brazing and silver soldering, no problem heating steel to red hot.
Perhaps it's Propane or contains it. I know that Propane burns hotter than Butane.
Greybeard (Neil)
1955 Golden Flash, sprung frame
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A Distinguished Gentleman Riding his 1955 Plunger Golden Flash

Offline duTch

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Re: Side stand without its pin - repairable?
« Reply #16 on: 31.10. 2018 09:12 »

 I looked this up a while ago, but just so sI get it 'right'...;

 https://en.wikipedia.org/wiki/MAPP_gas
Started building in about 1977/8 a on average '52 A10 -built from bits 'n pieces never resto intended -maybe 'personalised'
Have a '74 850T Moto Guzzi since '92-best thing I ever bought doesn't need a kickstart 'cos it bump starts sooooooooo(mostly) easy
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Online RDfella

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Re: Side stand without its pin - repairable?
« Reply #17 on: 31.10. 2018 16:10 »
If Muskrat is right and those are cracks, that would account for the pin failure, as the pin would no longer be a good fit in the hole. Unless the leg is welded before a new pin is brazed / silver soldered in, it will fail again. Too risky in my view, especially as new legs are readily available.
'49 B31, '49 M21, '53 DOT, '58 Flash, '00 Firestorm, Weslake sprint bike.

Offline bakerlonglegs

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Re: Side stand without its pin - repairable?
« Reply #18 on: 01.11. 2018 22:12 »
If Muskrat is right and those are cracks, that would account for the pin failure, as the pin would no longer be a good fit in the hole. Unless the leg is welded before a new pin is brazed / silver soldered in, it will fail again. Too risky in my view, especially as new legs are readily available.

Sounds like a good diagnosis.

Unfortunately new legs for ‘53 and earlier plunger frame bikes aren’t that easy to find. I’ve got a search on eBay for them but no one sells them new.