Which tool for this BB cup
I just got this 1980 Nishiki and am wondering what I should use to remove this cup. Looks like a open end wrench but I don't wanna screw nothing up.
http://farm4.static.flickr.com/3265/...51dd3307f1.jpg |
looks like you could undo that with a park HCW-5 wrench. they are about $15 at any reasonable shop. use the end with only 1 notch.
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If you mean the lockring holding the cup in the frame, you'll need a lockring wrench, or you can take a -blunt- cold chisel and a mallet and carefully, gently tap the inside of the notches in the correct direction to undo it. If you do that, be careful not to chip or dent the frame. Here's a lockring wrench:
http://www.parktool.com/images/produ...5630_79816.jpg If you can't undo the cup by hand once you remove the lockring, you'll need a fixed cup wrench. Here's one: http://www.parktool.com/images/produ...05630_1986.jpg The cup's 'wrenchable' area may be larger or smaller than 36mm, I would measure it first, but that's a general idea of what you'll need. Edit: If you end up using a fixed cup wrench, remember to apply lateral pressure (press the wrench against the cup with one hand) against the wrench while using it, otherwise it could slip off the cup while you're trying to loosen it, and you'll hurt your hands. |
Or a water pump pliers or larger curved jaw vise grips, or....
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Use a lockring wrench, or a peg spanner (or a hammer and flat-ended punch carefully) to loosen and remove the outer lock ring. Then use a large adjustable or correct size open-ended spanner on the centre flats of the bearing cup. I've never had any trouble with this style of BB!
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Yes I have a C spanner wrench for the lockring and I have Pin wrenchs that I bought for the adjusting cup on one of my other bikes (I used to use a pipe wrench for lockrings) but the adjusting cup on this bike has wrench flats that aren't very deep and I new there had to be a tool or a trick of the trade for this kind of cup.
thanks for saving me again. Wayne |
sounds like a flatwrench candidate. unfortunately without measurements we cannot suggest much. got a tape measure handy?
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when all else fails: channel locks.
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Park Tool HCW-11 is specifically made for that type of cup. The HCW-11 is discontinued, but if you really want one, you can probably find a shop that'll sell you one. If you have a decent 5/8-inch or 16mm open-end wrench, you can also try that. If it isn't corroded in place, a 16mm cone wrench can also be used.
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Loosen that lockring first...
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Originally Posted by mechBgon
(Post 6840257)
Park Tool HCW-11 is specifically made for that type of cup. The HCW-11 is discontinued, but if you really want one, you can probably find a shop that'll sell you one. If you have a decent 5/8-inch or 16mm open-end wrench, you can also try that. If it isn't corroded in place, a 16mm cone wrench can also be used.
Unfortunately it's a discountined product. |
Originally Posted by dsm iv tr
(Post 6838681)
If you can't undo the cup by hand once you remove the lockring, you'll need a fixed cup wrench. Here's one:
http://www.parktool.com/images/produ...05630_1986.jpg The cup's 'wrenchable' area may be larger or smaller than 36mm, I would measure it first, but that's a general idea of what you'll need. |
Originally Posted by operator
(Post 6841207)
Took 9 posts for a correct answer.
Unfortunately it's a discountined product.
Originally Posted by cizzlak
(Post 6838540)
looks like you could undo that with a park HCW-5 wrench. they are about $15 at any reasonable shop. use the end with only 1 notch.
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well technically i am wrong because he asked about removing the cup, not the lockring. i was just thinking of where to start. its all good.
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Originally Posted by operator
(Post 6841221)
Incorrect. The wrencheable area is definitley smaller than 36mm, guaranteed. That is not the correct tool.
Perhaps park should bring back the hcw-11, there's still quite a few of these cups kicking around. I could have used one of them as early as last week... |
I've had success with a crescent wrench on those flats. Also an option to put in a bench vise and unscrew using the frame.
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