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nlastovi
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Post subject: Swingarm pivot clearance Posted: Fri May 22, 2015 9:18 pm |
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Joined: Fri May 22, 2015 9:14 pm Posts: 3
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I've purchased a 2nd oversize swingarm pin and an appropriate adjustable hand reamer. What clearance do people use? I was figuring to put the pin in the freezer. And then ream it round until I was just able to push in the pin by hand. Does anyone have a particular clearance that they prefer or technique you've found that works well? '85 750F1A USA.
Thanks mucho. Norm / Colorado USA
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Wolf
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Post subject: Re: Swingarm pivot clearance Posted: Tue May 26, 2015 1:01 pm |
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Joined: Wed Jul 04, 2012 6:50 pm Posts: 101
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Hi Norm,
since a well aligned bore is mandatory, a reamer like shown below may be a good choice...
I would recommend a clearance of 0.03mm to 0.04mm.
I had the same task to do with my TT2 - I have bought the first oversize axle - and surprise: it did fit perfectly in the worn bores. I know this may be not perfect, since the bores may be not perfect round any more, but the swingarm now moves freely without play.....
But: maybe a reamer is a bit to delicate to handle - the possibility of removing too much material is not unlikely (yes, this happened to me...)...you may also use a wooden rod, which is covered with fine sand paper. Apply a slit to the rod to fix/clamp the sand paper. This can be used to enlarge the bore in very small steps..
Cheers
Wolf / Berlin Germany
Attachments: |
reibahle-U.jpg [ 12.05 KiB | Viewed 1031 times ]
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nlastovi
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Post subject: Re: Swingarm pivot clearance Posted: Tue May 26, 2015 1:07 pm |
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Joined: Fri May 22, 2015 9:14 pm Posts: 3
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Thank you Wolf...
For reference, .03mm is 0.0011811 inches. Call it 1 thou.
My existing spindle measured out at 1.102 inches. The larger spindle measures at 1.1065 inches. One set of cases measured 1.104 bushing ID. And the other set did not get measured but definitely feels looser so presumably is bigger still.
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