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Offline johnyvilla

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aftermarket caliper?
« on: January 09, 2007, 06:19:47 PM »
Soo, my caliper nipple is froze and I need another option for my k6. Does anyone know of any aftermarket calipers for this bike? Or would a caliper of another bike work? Ive had no luck finding an affordable OEM.
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Offline nomadwarmachine

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Re: aftermarket caliper?
« Reply #1 on: January 09, 2007, 06:28:15 PM »
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Offline nomadwarmachine

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Re: aftermarket caliper?
« Reply #2 on: January 09, 2007, 06:37:29 PM »
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Offline MRieck

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Re: aftermarket caliper?
« Reply #3 on: January 09, 2007, 06:55:13 PM »
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Offline johnyvilla

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Re: aftermarket caliper?
« Reply #4 on: January 09, 2007, 07:08:26 PM »
so that wont fit?
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Offline mkramer1121

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Re: aftermarket caliper?
« Reply #5 on: January 09, 2007, 09:19:11 PM »
You can pull the new (ebay) caliper off the older arm and use your existing arm.  Then put the older arm back on ebay to make some $$$ back.  ;D
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Offline kghost

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Re: aftermarket caliper?
« Reply #6 on: January 09, 2007, 10:33:48 PM »
Am I confused or do you just need a plain ol' caliper?

I think the caliper itself is pretty much a standard item. Is the K6 different?

And that being said can you not get the nipple out or what?
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Offline nomadwarmachine

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Re: aftermarket caliper?
« Reply #7 on: January 10, 2007, 01:23:02 PM »
Caliper is identical through the K6 so you can swap it out without any problem at all, but I am also confused about the precise nature of the trouble that you are having.  Is the bleed screw just stuck in the caliper?   If so, you may have much more (and sooner) success with an easy-out than you will with sourcing a new caliper.  If you are having trouble with a frozen-piston, there are also various solutions (from grease to air) that you can employ to free it, though some of them will not come out without substantial damage to the bore (I had such a problem with my K6).
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Offline johnyvilla

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Re: aftermarket caliper?
« Reply #8 on: January 10, 2007, 08:37:20 PM »
yea my nipple is frozen. Ive soaked it overnight twice in liquid wrench with no results. A bench-leg lifted trying to free nipple from caliper in vice, so I think an easyout would break. I'm going to try a torch as a last result. Commpressed air has not freed the piston, but Ive spent most my time with this confound nipple.
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Offline Jerry Rxman Griffin aka MuthaF'er

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Re: aftermarket caliper?
« Reply #9 on: January 10, 2007, 10:02:28 PM »
I only like frozen nipples on women (refer to avatar)! You really have 2 non problems. Forget compressed air for the piston. It will/might work on a slightly stuck piston and can be dangerous when that projectile comes free at 125lb of pressure. Use a grease gun threaded into the brake line hole to pump it free. As far as the nipple, if it breaks off it can be drilled out. When you finally decide to go for it after all the soaking, use a 6 point socket over the nipple and strike the socket wrench sharply rather than trying to hand turn it. Kits are available to refit a larger nipple also if the hole needs to be tapped out larger. Perhaps your best option (provided you need expert assistance) would be to send your caliper to Speed Bleeder and they will remove it and replace it with a Speed Bleeder (which you really need anyway) for cheap! Now, with all this in mind, your only real potential problem might be what condition the piston and inside walls of the caliper are in. Grease gun the piston out for starters then check the conditions. If reuseable, ship your caliper to Speed Bleeder, get a new gasket/seal, and put it all back together. If everything is totally eaten up perhaps you need to find a new used donor caliper and hope it's in good shape.
And I thought you had a problem?!  ;) :D ;D
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Offline Bob Wessner

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Re: aftermarket caliper?
« Reply #10 on: January 11, 2007, 02:26:27 AM »
Quote
Use a grease gun threaded into the brake line hole to pump it free.

I second that.
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Offline johnyvilla

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Re: aftermarket caliper?
« Reply #11 on: January 11, 2007, 08:48:44 AM »
thanks, Ill give it a try.
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Offline bryanj

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Re: aftermarket caliper?
« Reply #12 on: January 11, 2007, 08:55:51 AM »
Get one of those portable gas torches and warm the caliper housing and spray wd40 or similar  on whilst warm IT WILL SMOKE AND STINK, maybe even a flame or two so BE CAREFUL---nipple will then undo

WARNING Do not try this on the wife/girlfriend/significant other or pain will occur TO YOU AS WELL
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Offline johnyvilla

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Re: aftermarket caliper?
« Reply #13 on: January 11, 2007, 10:01:50 AM »
The grease gun worked and to my relief the piston is nice and shiny. Just a little oxidation on the inside of the caliper. Should clean up without pitting. thanks
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Offline nomadwarmachine

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Re: aftermarket caliper?
« Reply #14 on: January 15, 2007, 08:56:10 AM »
Excellent!

On a related note, can somebody explain to me why a grease gun or compressed air is preferable to just hooking the offending caliper up to a working master?  Why not just pump out the piston normally?  Grease and air pressure sound unnecessarily dangerous (and messy!)
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Offline bryanj

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Re: aftermarket caliper?
« Reply #15 on: January 15, 2007, 09:15:39 AM »
Because, having taken it off and with a frozen bleed nipple you cant bleed it to make the master work!

If the FIRST thing you do is split the caliper then you can use the master as suggested---problem is most people remove the hydraulic pipe first
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Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

Remember "Its always in the last place you look" COURSE IT IS YOU STOP LOOKIN THEN!
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