Campy Victory Crank bolt snapped
#1
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Campy Victory Crank bolt snapped (self extracting type)
hi there,
whle instaling a pair of Victory cranks on a customer's bike, the left hand crank bolt snapped off. I've heard these bolt were brittle and prone to breaking, but I'm still surprised.
The customer still would like the cranks so I need some advice. My standard 2 prong dust cap remover is a bit narrow and won't line up on the holes. Short of sourcing the campagnolo tool does any one have another trick to get the dust cap off? Let's say I get the dust cap off, what are my options? Do other systems, like Shimano work with the Campagnolo cranks?
I read up a bit and it seems that I can use a standard 15mm crank bolt, but will removeing the crank in the future will require a proprietary LH threaded extractor?
thanks!
whle instaling a pair of Victory cranks on a customer's bike, the left hand crank bolt snapped off. I've heard these bolt were brittle and prone to breaking, but I'm still surprised.
The customer still would like the cranks so I need some advice. My standard 2 prong dust cap remover is a bit narrow and won't line up on the holes. Short of sourcing the campagnolo tool does any one have another trick to get the dust cap off? Let's say I get the dust cap off, what are my options? Do other systems, like Shimano work with the Campagnolo cranks?
I read up a bit and it seems that I can use a standard 15mm crank bolt, but will removeing the crank in the future will require a proprietary LH threaded extractor?
thanks!
Last edited by rideone; 08-24-13 at 03:19 PM.
#2
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You may be able to drive the cap off with a hammer and drift punch. Apply plenty of penetrating oil first and give it some time to soak in. Yes, you'll need the LH extractor tool if you do succeed in removing the cap, unless you're willing to try one of the less elegant solutions (gear puller, Jacobs chuck remover wedges, etc.).
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sorry that happened to you. hope you get it worked out and the customer is understanding.
i use 14mm bolts so a standard socket will fit.
i use 14mm bolts so a standard socket will fit.
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I have used an old spoke, with a 90 degree bend at the tip, insert that into the hole an drive a flat screwdriver on the inside elbow of the bent spoke, flush with the face of the little critter to be removed, GENTLY tap with hammer...it works...if you are careful
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It should not be hard to remove the bolt as all the tension is relieved once the bolt snaps. Also, perhaps it's just the photo, but the crank bolt looks hallow; you have already drilled it for an "easy out"?
Presuming you snapped the self extracting 7mm allen bolt, I would not worry about a dust cover; just use one of these.
Also, since I have the Campy tool, I have not had to try and remove the self extracting ring with a spanner, but there are some adjustable spanners that I'm sure would do the job. Finally, all this is fine until your customer needs the crank arm removed for some purpose. He will either need a Campy reverse thread crank puller, which are still quite available or remove the self extractor ring/bolt from the drive side and use it on the left.
Presuming you snapped the self extracting 7mm allen bolt, I would not worry about a dust cover; just use one of these.
Also, since I have the Campy tool, I have not had to try and remove the self extracting ring with a spanner, but there are some adjustable spanners that I'm sure would do the job. Finally, all this is fine until your customer needs the crank arm removed for some purpose. He will either need a Campy reverse thread crank puller, which are still quite available or remove the self extractor ring/bolt from the drive side and use it on the left.
Last edited by onespeedbiker; 08-24-13 at 06:55 PM.
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take the spindle out and put it on the bench...
a heatgun does wonders!
a heatgun does wonders!
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Find a Dura Ace 'peg spanner' (their techie name for a dust cap tool) and grind/file it to fit. I think these might be left handed caps.
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+1 To BG: I use one of the Park Tool spanners, I think the black one. Line up the two pegs with either end of the dust cap. I used to chew up quite a few covers until I made this change.
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thanks for all the replies. great advice here. i think i'll try two nails and the screwdriver /plier trick first as these things are readily available. i have a green park spanner for BBs but i think the pegs are too thick.
i have some shimano arabesque donor cranks which still have the self extracting bolt installed, but i think shimano used right hand thread for their dust caps. can anyone confirm that?
i have some shimano arabesque donor cranks which still have the self extracting bolt installed, but i think shimano used right hand thread for their dust caps. can anyone confirm that?
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Yes i began drilling and then decided to snap a picture. i will use a left turning screw remover to try and remove the broken bolt..i'd hate to have to trash the BB.
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thanks for all the replies. great advice here. i think i'll try two nails and the screwdriver /plier trick first as these things are readily available. i have a green park spanner for BBs but i think the pegs are too thick.
i have some shimano arabesque donor cranks which still have the self extracting bolt installed, but i think shimano used right hand thread for their dust caps. can anyone confirm that?
i have some shimano arabesque donor cranks which still have the self extracting bolt installed, but i think shimano used right hand thread for their dust caps. can anyone confirm that?
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Red Park pin spanners have the smaller pins. Shimano's cap tool needs to have the insides of the pins ground to widen up the pins . Give the crank area around the cap a quick 2-3 second blast with heat from a propane torch and the caps will easily come off.
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tried the "nail" method mentioned before with an adjustable wrench and the dust cap didn't budge. i'll check my trusted LBS to see if they have the proper campy tool.
another question, what kind of replacement bolt should i be looking for? found another self extracting bolt (it's black) in my spares box. would this work with the campy dust cap? just wondering if they all are designed similar.
another question, what kind of replacement bolt should i be looking for? found another self extracting bolt (it's black) in my spares box. would this work with the campy dust cap? just wondering if they all are designed similar.
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I have worked on a few older Victory cranksets and they always worried while campy they just look like there almost ready to break from the start. While maybe a little costly and seriuos pain this should fairly easy to fix.
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just came up on this tool called "circlip" pliers. the look like they'd do the trick. and not all that expensive. the ends are 1.6mm.
Last edited by rideone; 08-25-13 at 02:09 PM.
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Red measure 2.3mm
Green measure 3.0mm
The right angle circlip plier should work.
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so i made my rounds today and hit up a few shops. nobody had the campy specific tool and in one shop, we managed to break his circlip pliers, so the verdict is out. the steel dust cap has very likely bonded to the aluminum.
but just to be sure, we should be turning right to loosen? the dust cap threads in opposite, righty loosey, lefty tighty so to say?
i don't own a heat gun or torch, so i'll stop by another shop who has helped me out with stuck parts before. now it starts to get interesting. i'l lreturn soon with an update.
but just to be sure, we should be turning right to loosen? the dust cap threads in opposite, righty loosey, lefty tighty so to say?
i don't own a heat gun or torch, so i'll stop by another shop who has helped me out with stuck parts before. now it starts to get interesting. i'l lreturn soon with an update.
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Victory cranks? Aren't they regular 'ole right hand thread like most other cranks? I know some Campy cranks have that odd ball left hand thread on the nds but isn't that on the later cranks with self extractors? Money in the bank says its regular right hand thread and all you've been doing is tightening it. Heat with propane torch for a 2 or 3 seconds and it'll come off.
Rideone...send me the crank arm and I'll get the cap off, all it'll cost you is shipping to and from Tampa. Maybe $10 round trip. Oh...Berlin, Germany or Delaware?
Rideone...send me the crank arm and I'll get the cap off, all it'll cost you is shipping to and from Tampa. Maybe $10 round trip. Oh...Berlin, Germany or Delaware?
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I think the normal crank bolts take an 8mm hex, while the self extractors use 7mm? Could be wrong...
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so i made my rounds today and hit up a few shops. nobody had the campy specific tool and in one shop, we managed to break his circlip pliers, so the verdict is out. the steel dust cap has very likely bonded to the aluminum.
but just to be sure, we should be turning right to loosen? the dust cap threads in opposite, righty loosey, lefty tighty so to say?
i don't own a heat gun or torch, so i'll stop by another shop who has helped me out with stuck parts before. now it starts to get interesting. i'l lreturn soon with an update.
but just to be sure, we should be turning right to loosen? the dust cap threads in opposite, righty loosey, lefty tighty so to say?
i don't own a heat gun or torch, so i'll stop by another shop who has helped me out with stuck parts before. now it starts to get interesting. i'l lreturn soon with an update.
Last edited by onespeedbiker; 08-27-13 at 01:17 AM.
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Victory cranks? Aren't they regular 'ole right hand thread like most other cranks? I know some Campy cranks have that odd ball left hand thread on the nds but isn't that on the later cranks with self extractors? Money in the bank says its regular right hand thread and all you've been doing is tightening it. Heat with propane torch for a 2 or 3 seconds and it'll come off.
Rideone...send me the crank arm and I'll get the cap off, all it'll cost you is shipping to and from Tampa. Maybe $10 round trip. Oh...Berlin, Germany or Delaware?
Rideone...send me the crank arm and I'll get the cap off, all it'll cost you is shipping to and from Tampa. Maybe $10 round trip. Oh...Berlin, Germany or Delaware?
#23
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Victory cranks? Aren't they regular 'ole right hand thread like most other cranks? I know some Campy cranks have that odd ball left hand thread on the nds but isn't that on the later cranks with self extractors? Money in the bank says its regular right hand thread and all you've been doing is tightening it. Heat with propane torch for a 2 or 3 seconds and it'll come off.
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thanks miamijim and onespeedbiker. unfortunately i'm located in berlin germany. shipping can't be all that expensive for such a small part, but there is risk in trusting the USPS. i'll have to search for the proper tool then, because all the attempts at removing the dust cap have left their marks on an otherwise perfect crank and it would be a shame to do more damage. there's one shop in mind that should have it. only the proprietor is often way too cocky for my taste and i refuse to give him my business. if anyone has the tool for sale, then I might consider buying it.
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hm. 32 euro is a bit pricey for a tool i'll probably only have to use once.
https://www.defietsenmaker.nl/index.p...d=2037&lang=EN
might just do it though.
https://www.defietsenmaker.nl/index.p...d=2037&lang=EN
might just do it though.