If there is clearance fitting an extra long bolt that passes through the frame (if already drilled) then fit ny-lock nut on other side prevents bolts working loose. A good dose of copper grease on the threads stops corrosion. Once a year spin the bolts out, clean and regrease with copper.
Snapped Bolt in Integrated KSA-18 Kickstand Hole - How to Remove
- Thread starter wiggydiggy
- Start date
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Marchrider
Über Member
very difficult unless you can get it ito a jig on a milling machine.
what is it M5 ? steel bolt in aluminium, it has probably corroded itself in place. and any attempt to drill it, and the drill will wander into the softer metal
If I was to give it a go, (it needs soaked in diesel for a week) then you have to be very accurate with the centre punch, then a centre point drill just to take some material away from where it has sheared. Then try a 3mm left hand drill (a sharp (new) 3mm left hand drill) with plenty cutting fluid, (do not let the drill wander) you never know your luck it may come out during the drilling . if not, your in trouble,, heat it up and stud extractor,
OP
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wiggydiggy
Legendary Member
It's not corroded but I've got reservations about even asking the LBS to do it, I use the bike regularly and don't have the time to strip it for diesel baths for a week!
I think I'm going to order a couple of stay mounted stands, see which fits best and use that. I'm much more aware now most stands are not suitable to hold the bike and luggage so it's not going to be used under heavy load again.
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Ajax Bay
Guru
- Location
- East Devon
The likely corrosion is between the threads. How would you know/think "it is not corroded"? You're in denial.
A stand clamped to the chainstay is the way to go (and I can't see that lack of space will be an issue). One so positioned supports your bike closer to its CoG.
Marchrider
Über Member
Its known as Galvanic corrosion, different metals have different electric potentials and if linked with an electrolyte (and salty water off our winter roads) is an excellent electrolyte, basically the two metals start to act like a battery with the Aluminium becoming the anode and disintegrating.
In the case of a steel bolt in an aluminium stock, the degrading aluminium expands and locks the two parts together
try it in a glass of salty water, a piece of clean steel and a piece of aluminium, put a volt meter across the two metals, you should get about 1 volt
In the case of a steel bolt in an aluminium stock, the degrading aluminium expands and locks the two parts together
try it in a glass of salty water, a piece of clean steel and a piece of aluminium, put a volt meter across the two metals, you should get about 1 volt
fossyant
Ride It Like You Stole It!
- Location
- South Manchester
Do you need a kick stand ?
Personally, I'd drill a small pilot hold (like 1-2mm) then go slightly larger, then get out the 'easy out' bits. If you drill a hole only just large enough for the bit to get purchase, it's not going to snap inside - you've gone too far if you do that.
Personally, I'd drill a small pilot hold (like 1-2mm) then go slightly larger, then get out the 'easy out' bits. If you drill a hole only just large enough for the bit to get purchase, it's not going to snap inside - you've gone too far if you do that.
Moodyman
Legendary Member
I had this same problem on a rack bolt.
As above, I know what to do in principle, but have never done it so wasn’t going to use the bike as a guinea pig.
Couple of bike shops (steel frame builders) refused to touch it as it was aluminium.
I approached Chris Marshall (well know frame builder) in Keighley. He sorted it for £20. Drilled out M5 bolt and re-tapped it with an M6 bolt.
Can provide you his details if you PM me.
As above, I know what to do in principle, but have never done it so wasn’t going to use the bike as a guinea pig.
Couple of bike shops (steel frame builders) refused to touch it as it was aluminium.
I approached Chris Marshall (well know frame builder) in Keighley. He sorted it for £20. Drilled out M5 bolt and re-tapped it with an M6 bolt.
Can provide you his details if you PM me.
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wiggydiggy
Legendary Member
Cheers. Is this him? https://www.keighley.co.uk/info/2563/
It'll be February before I can give him the bike for any length of time though I'll drop him a line before then to see what (if anything) can be done.
Moodyman
Legendary Member
Yes, correct landline number. Will send you his mobile by PM so you can WhatsApp him the pics.
