PowerTap innards: me likey
#1
Making a kilometer blurry
Thread Starter
PowerTap innards: me likey
I've had this annoying creak for about 2 weeks, following that 8-mile swim/TT I did at lunch that had my PowerTap submerged. I pulled cranks, bb, rings, pedals, cassette, QR. Then I cleaned, blew with compressor, greased, reinstalled. Still creaked.
Lubed spokes, nips, dropouts, cleaned and waxed cleats. Still creaked.
Last night, I pulled the PowerTap SL freehub to clean and lube. The entire operation took about four minutes. really simple piece of engineering in there. Just how I thought it would look. No parts springing out or falling unexpectedly.
There was a bit of water in there (droplets). Nothing major, and it was all beaded up on greasy surfaces. Cleaned and lubed, assembled (seriously, four minutes since I set the wheel in my vice).
Now it has a silent freehub, engages just like it used to, and the creak is gone. I'm very pleased with the ease of service. I didn't pull the freehub off the axle, but I didn't see a reason to do so. Maybe would have added a minute.
Also nice to know that only a tiny bit of water got in there with a complete submersion, and it never dropped one record while the water was in there. It's always been dry on the cap side though.
Lubed spokes, nips, dropouts, cleaned and waxed cleats. Still creaked.
Last night, I pulled the PowerTap SL freehub to clean and lube. The entire operation took about four minutes. really simple piece of engineering in there. Just how I thought it would look. No parts springing out or falling unexpectedly.
There was a bit of water in there (droplets). Nothing major, and it was all beaded up on greasy surfaces. Cleaned and lubed, assembled (seriously, four minutes since I set the wheel in my vice).
Now it has a silent freehub, engages just like it used to, and the creak is gone. I'm very pleased with the ease of service. I didn't pull the freehub off the axle, but I didn't see a reason to do so. Maybe would have added a minute.
Also nice to know that only a tiny bit of water got in there with a complete submersion, and it never dropped one record while the water was in there. It's always been dry on the cap side though.
Last edited by waterrockets; 04-02-08 at 06:49 AM.
#4
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What's the best way to remove/tighten the outside body of the PowerTap hub? I removed mine to replace the batteries a bit ago, but when I tried to reseal it, I found that I wasn't able to apply enough rotational force to get the PT fully sealed. Is there some sort of tool I should be using?
[also with the SL hub]
-bullseye
[also with the SL hub]
-bullseye
#5
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I get high on lactic acid
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Ya, I learned how nice and simple it was when I switched mine out(bought used from a campy user) to a shimano free hub. Took me about 15 minutes to do it all. Now that I have campy I will be switching that back. You have to love when people make things just simple...
#8
Making a kilometer blurry
Thread Starter
What's the best way to remove/tighten the outside body of the PowerTap hub? I removed mine to replace the batteries a bit ago, but when I tried to reseal it, I found that I wasn't able to apply enough rotational force to get the PT fully sealed. Is there some sort of tool I should be using?
[also with the SL hub]
-bullseye
[also with the SL hub]
-bullseye
One trick that someone here mentioned is to use one of those rubber-sheet jar openers. That was good enough to loosen the cap after being tightened with the bench vise method, so this is the route I take now.
It would also be really easy to make a tool out of scrap 1x2s. Just make a rectangle such that the interior width matches the cap's flats. You'll want a fresh cut edge on the wood, off the table saw or jointer.
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this thread is worthless without pics , I want to see the insides without risking screwing mine up!
#10
Making a kilometer blurry
Thread Starter
If I had a 17mm wrench with me, I'd pull it apart for you real quick. There's really nothing to screw up as long as you keep the order on the nuts/washers straight. There are only like 6 pieces, including the axle and hub shell/unit.