The BSA A7-A10 Forum
Technical (Descriptive Topic Titles - Stay on Topic) => A7 1946-1950 => Topic started by: Craig on 30.09. 2016 19:18
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Morning
I removed the rear mud guard for the first time and notice the center stand bracket look strange.
Seems like ti has been brazed to the frame at some stage.
Is thins normal? I cannot see how this plate is fixed to the frame otherwise?
Should I be looking to repair this problem?
Regards
Craig
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Craig, sorry for the delay just saw your post and just been dealing with centre stand on LOngstroke project "Y" frame. My centre stand mount looked very 'added on' but with weld not braze. First I thought it might have been one of the telescopic stand frames converted but I believe they were on just the first 600 bikes so not applicable to a Y frame. Before rebuild I had to have my bracket cut off and put "straight" on frame. (Originally it was rotated and could see stand binding on lugs.) On first ride found centre stand falling down onto road over every bump. Spring was standard one going around these days with loop end. Local spring factory shortened hook end by 5mm and now works well. Yours ok?
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Thanks Harry
when my bike in on the center stand - back wheel is not 100% clear of the floor. few mm of the tire catching. easy enough to still rotate by hand.
usually I put plank of wood under the stand to raise it up little further. Not easy to do on your own and normally requires another person.
I was more concerned by the look of that brazing, which looks non standard and cracked.
At some stage will get to take the whole thing apart and have a better look. As always who knows what has been done over the last 60 years.
Cheers
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I have to say , that's a fairly crap lug setup uber-elbodgeo... There's pics of others if you research some
just a tip regarding packing up the stand. I have to do it with my Gutzzi, and over time I've figured is best to just roll it on as-is, and pack up one side at a time by rocking it over, and then back again- use as many packers as you need and don't need to be big area....and then there's wedges (not wedgies)..can work wonders *smile*
I struggled with doing a single 20mm bit of ply for both feet for a while and then smartened up *bright idea*
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Top tip Dutch - thanks.
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Thanks Harry
when my bike in on the center stand - back wheel is not 100% clear of the floor. few mm of the tire catching. easy enough to still rotate by hand.
usually I put plank of wood under the stand to raise it up little further. Not easy to do on your own and normally requires another person.
I was more concerned by the look of that brazing, which looks non standard and cracked.
At some stage will get to take the whole thing apart and have a better look. As always who knows what has been done over the last 60 years.
Cheers
Yes some do not under stand the difference between welding and brazing.
And more important which to use where.
That is a crappy braze repair and needs to be redressed,
bad news is once you have put copper on the joint you can not go back in with steel.
So after you have ground & filed all that shit away you will have to take it to a welder and get high strength nickel welding done.
Brazing has absolutely no strength and less fatigue resistance.
It should only be used to join close fitting parts similar to solder.