Disc Bolts
- Garry
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Disc Bolts
anyone any ideas for removing seized disc bolts other than grinding
the heads off or drilling?
i've got a set of front discs i want to swap but they are really tight and
if i'm not careful i'll end up chewing the centre out. i'm using an attachment on a socket set but they don't seem to want budge - just
the odd creak
wheel is KR1s so theres no hole i can squirt wd40 in to try and free
them
the heads off or drilling?
i've got a set of front discs i want to swap but they are really tight and
if i'm not careful i'll end up chewing the centre out. i'm using an attachment on a socket set but they don't seem to want budge - just
the odd creak
wheel is KR1s so theres no hole i can squirt wd40 in to try and free
them
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This may sound rough but give it a chance............. A good sharp small'ish
cold chisel & medium hammer . First make a nik on the outer edge of the bolt at a right angle to the bolt about 60 degrees of vertical (don't need to go to close to the anodized surface). Then keeping the chisel blade in the nik , tip the chisel clockwise and gently tap (progressively harder as needed) best if someone gently tries to unscrew the bolt with the allen key at the same time. .............don't be in big hurry. "tortoise & hare story" !!!!
This should shock the bolt around, obviously damages the bolt.
With a Hammer + chisel + SKILL & patience it's amazing what can be removed
Garry if you have more than 2 thumbs get someone else to try this
cold chisel & medium hammer . First make a nik on the outer edge of the bolt at a right angle to the bolt about 60 degrees of vertical (don't need to go to close to the anodized surface). Then keeping the chisel blade in the nik , tip the chisel clockwise and gently tap (progressively harder as needed) best if someone gently tries to unscrew the bolt with the allen key at the same time. .............don't be in big hurry. "tortoise & hare story" !!!!
This should shock the bolt around, obviously damages the bolt.
With a Hammer + chisel + SKILL & patience it's amazing what can be removed
Garry if you have more than 2 thumbs get someone else to try this
Two in every one of us is Schiz-oo phrenic
I'd give my right arm to be ambidextrous
Gis the loan of your face I want to worry this rat
I'd give my right arm to be ambidextrous
Gis the loan of your face I want to worry this rat
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anyone heard of pe-nol? very effective penetrating spray, i know there is'nt a lot of space were normal spray such as wd40 would be needed but this stuff is baffling, youd be amazed at were/what it can free off. not sure were to get it from as my dad gets it from work but its in a blue/white tin. those disc bolts can be stubborn little bastards!
- Garry
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- Premix Junkie
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You can get Titanium ones that fit the KR, Pro Bolt do them think they're about 6 quid ish each So that's about eighty quid for a full set, yeah and I'm stupid enough to have bought themheadcoats wrote:On the subject i need some new bolts
Are the standard ones the ones to have or are there aftermarket ones to fit?
I'm sure you can get stainless steel ones as well from either pro bolt or inox they claim that their stuff is of enough tensile strength for this application, I can't comment on that but would check before fitting.
If you're std ones are looking scruffy perhaps getting them replated may be an option.
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Remember disc bolts will have been fitted with thread lock so will be a pain in the butt to remove but won't faill out whilst riding which could be catastrophic.
Two very good methods to help remove stubborn bolts;-
1. Use a drift or steel rod against the bolt head & tap hard with a hammer, the shock un-freezes the threads. An impact driver works well to with an allen key insert !
2. If the bolt is to be discarded & option 1 above has not worked, then gently heat the bolt head with a blow torch, once hot use option 1 to remove the bolt. The heat usually caused the whole setup to expand & free the threads.
Remember to use thread lock when you put the bolts back in !
Two very good methods to help remove stubborn bolts;-
1. Use a drift or steel rod against the bolt head & tap hard with a hammer, the shock un-freezes the threads. An impact driver works well to with an allen key insert !
2. If the bolt is to be discarded & option 1 above has not worked, then gently heat the bolt head with a blow torch, once hot use option 1 to remove the bolt. The heat usually caused the whole setup to expand & free the threads.
Remember to use thread lock when you put the bolts back in !
Half a KR-1S, well the front anyway
- mr_bungholeo
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