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Old 01-03-12, 08:46 AM   #1
cpingenot
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Chaincase pieplate

I have a 70's Raleigh Lady's sports, which I've retrofitted with one of the Asian made repro chaincases from Yellow Jersey. Somehow either the chaincase or the "pieplate" that covers the chainring have gotten bent or torqued, and the chaincase no longer stays snapped in. I can press fit it using 6 or 7 clamps, but as soon as I remove a clamp it pops back out. I found a place where the pieplate rim was slightly bent, and bent it back, but it didn't help.

Any suggestions for getting it to stay in place?
I've thought about putting little springy metal V shaped shims in to increase the friction in the rim. I could "glue" it in, but that seems like a bad solution for the long term. I've also contemplated tiny magnets or very tiny sheet metal screws through the rim, but that would be really really fiddly.

I'd love to hear if anyone else has encountered this problem and has a solution
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Old 01-03-12, 09:10 AM   #2
Alan Edwards
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I need a picture, I understand how all the parts go together but need to see how close they don't fit. Screws and magnets all sound wrong, the plate should be flat and if not bend it flat?
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Old 01-03-12, 09:18 AM   #3
cpingenot
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I don't have a photo handy, but you can see what I did to originally pop it in here
http://bikinginheels-cycler.blogspot...-problems.html
It "appears" flat, but the chaincase is such thin stuff, that it torques a lot while you're trying to pop the plate in.
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Old 01-03-12, 12:09 PM   #4
michael k
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Its a Very tight press fit and the paint maybe interfering with it also.Maybe try heat and cold.Put thethe bike (and chaincase) inside near a heat source and the cover plate in a arctic enviroment.
Mine,the cover plate was damaged trying to remove it.
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Old 01-03-12, 12:54 PM   #5
cpingenot
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I can get it _in_just fine

It just won't STAY in- pops out just as soon as I remove the clamps. I am sure it's completely in- it "pops" and the lip is flush against the case all the way around, but it won't stay in anymore.
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