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Post by jeepsteve92xj on Jul 23, 2013 7:12:33 GMT -5
 Apparently during all the stuff I did on the Znen over the weekend, I missed tightening the rear caliper bolts, and lost both on my ride home Monday. Then I lost the mounting plate that the caliper slides on. Luckily I drove back and found it just out of the traffic in that lane. Not damaged, and no one with a flat tire anywhere nearby! I acquired new bolts and lock washers, and began the reassemble the pieces. Of course I had squeezed the brake lever so the pads were together and the pistons needed to pressed in. Here is the tip. Remove the master cylinder cover before pressing in the pistons! I did not, and blew out the sight "glass" lens.  Luckily, when I repaired the crumbled sight glass on the Xingyue, I ordered a few extra 16mm watch crystals. Cleaned out the rest of the broken plastic, brake cleaner and paper towel just in the lens area, black RTV, new crystal, a little more RTV. It will have 20+ hours of cure time by the time I get to it tonight to bleed the line. The same repair on the Xingyue is still holding after 2+ years. The caliper is secure with new bolts, lock washers and red Loctite, since I don't seem to have any blue laying around.
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Post by ramblinman on Jul 23, 2013 7:43:09 GMT -5
The caliper is secure with new bolts, lock washers and red Loctite, since I don't seem to have any blue laying around. isn't red loctite a permanent bond?  hope you don't need to get that apart anytime soon. i know from experience the pain of waiting on parts so you can ride. at least you found the parts and got it back together.  |
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Post by jeepsteve92xj on Jul 23, 2013 8:14:11 GMT -5
Nothing is permanent. May need a little heat to help get it loose, but I've never had a problem with blue or red.
Green is nearly permanent. Lots of heat and some leverage required.
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Post by rockynv on Jul 23, 2013 11:07:57 GMT -5
I have a 650 ft lb impact wrench and yes nothing is permanent.
On my Lance/Znen I didn't bother replacing the glass and just made up a boiler patch (#10 nut and bolt with washers and an appropriate gasket).
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Post by jeepsteve92xj on Jul 23, 2013 11:26:02 GMT -5
I have several crystals already, so repair is easy. I ordered Watch Crystal Flat Round Standard Mineral Glass Crystal, 1 mm Thick, MM Size: 16.1mm, 201100 4 @ $0.  = $3.52. On July 25, 2011. Had to order a couple other items to make a $20 minimum. Looks like no minimum now. If I were ordering more, I might go up to the 1.5 or 2mm but the price goes up exponentially. |
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Post by pmatulew on Jul 23, 2013 17:13:50 GMT -5
A watch crystal? I never would have thought of that! I've never broken one but I'll have to remember that just in case. Question for you: Does your brake caliper rattle around on the mounting plate? I came home from a ride the other day and had to chase down a rattle while sitting at idle and it turned out to be the rear caliper.  |
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Post by jeepsteve92xj on Jul 23, 2013 19:45:53 GMT -5
yea, it does rattle a little bit. I might pull it off and add a touch of grease to the pins it slides on.
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= $3.52. On July 25, 2011. Had to order a couple other items to make a $20 minimum. Looks like no minimum now. 
