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1983 cx650E
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That's what happens when you use regular grease to grease the sliding pins instead of brake caliper Grease !!!

Is that an oem break caliper or a metal gear break caliper?
 

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Is the disc yours/ex-your bike...or a friends?
 

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1978 Honda CX-500.. a work in progress
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Discussion Starter · #4 ·
This is from my current frame up 78 project. I think the farmers that once owned it used it to change sprinkler pipes in the fields. All stock, but I will rebuild the caliper and give it some good organic pads that should re-conform to those ridges. Or maybe I will call in some machinist favors and touch up the surface.
 

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Most regular machine shops aren't really set up to resurface rotors correctly. I've never used this company and am not endorsing them but one of the forum members used this place and was happy. There may be other places out there also? TrueDisk LLC
 

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1982 gl500
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Most machine shops that have a setup for grinding flywheels technically should be able to use that for surfacing rotors, especially if they're just using a Bridgeport mill with a 4th axis rotary or something. Convincing them it will be worth their time and effort is another issue entirely.
 

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I guess we are talking about 2 different types of machine shops. I was assuming he was calling in a favor from somebody he knows at a machine shop. I was a toolmaker and worked in machine shops (not speed shops that did engine work, etc.) and had no type of setup to do any kind of auto related machining.
 

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Call around to auto parts stores. I know oriellys resurfaces rotors for like 10 bucks each. Should be able to do those.
 

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I have a story about trusting "big box" auto stores to do machine work! Years ago had a RWD vehicle that had rotors that had to have bearings, bearing seals, etc. Took them to one of those stores to be turned. Put it all back together (seals, packing with grease, setting torque on the castle nut, etc.), in other words quite a bit of work. They were warped worse than when i took them too them. Had to buy new rotors, bearings seals etc.. and all the labor to do it - twice, real PitA! Never again will i trust one of those places to do any type of machine work! And the fact you can't just go to autozone and get a new CX/GL rotor...
 

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Personally I don't like automotive rotor surfacing machines - they result in a weird pattern because the cut is effectively a large spiral. Often times there is chatter in one portion of the cut or another so they also wear out pads faster. The flywheel surfacing method results in a much more consistent surface with no spiral to it. All new rotors are cut at the factory in the same manner flywheels get surfaced.
 

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Interesting and notes taken. I'm always trying ways to be cheap and save money.
 

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I have a story about trusting "big box" auto stores to do machine work! Years ago had a RWD vehicle that had rotors that had to have bearings, bearing seals, etc. Took them to one of those stores to be turned. Put it all back together (seals, packing with grease, setting torque on the castle nut, etc.), in other words quite a bit of work. They were warped worse than when i took them too them. Had to buy new rotors, bearings seals etc.. and all the labor to do it - twice, real PitA! Never again will i trust one of those places to do any type of machine work! And the fact you can't just go to autozone and get a new CX/GL rotor...
Technically most rotors on bikes need to be ground with specialist machines.....
A lot of rotor resurfaces wont touch "old bikes" here (in OZ) at least.

Yes as per your story..will happen with autobox stores...BUT sometimes "specialist stores" get lazy as well.....
I once got a bike back from a BMW "guru shop" with something corrosive spillt all over the back fender and alloy gear-box.....worse still when confronted with it they gave the "wasn't us reply"

All shops will have an off day...as we all do....the good ones will either say "beyond us" and refer on..... or accept responsibility for any "mishaps" that may happen...they get good "word of mouth"
 

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"\All shops will have an off day....the good ones will either say "beyond us" or accept responsibility for any "mishaps" "

Or give a caveat with a fair assessment of chances of success of any given attempted repair.
 

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Technically most rotors on bikes need to be ground with specialist machines.....
That thought is what sparked my comment. I was envisioning the OP having friends that worked in a standard machine shop "calling in a favor" from them not realizing a regular shop isn't equipped to handle grinding rotors. That was an assumption, maybe his friends do work at specialty shops that are equipped to do so? That's why i posted the link for the shop that specialized in resurfacing bike rotors. 'nuf said...
 
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Discussion Starter · #15 ·
The shop is run by a guy I have known for 30 years, he has the equipment to do it and works on many older vehicles, and I trust if he can't do it correctly or to my satisfaction he will pass on it. Sadly, a week before I was going to take it in he contracted Covid and spent a week in ICU. 52 and almost died. He is home now on O2 and is slowly gaining his strength back. His wife and son are running the business so I do not expect the rotor conversation to happen soon. It OK, going on a 10 day vacation anyway! Thanks for the comments and input.
 

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Sorry to hear that about your friend, this stuff is wicked and some people get hit really hard, yikes! Hopes for a full recovery for your friend. My wife and I are recovering from a bout of covid. She was in the hospital for 3 days, i didn't have to go to the hospital. So far we feel very fortunate that ours can be considered a relatively "mild case" but it still knocked the stuffing out of us and I can see taking several weeks (or longer) to get up and functioning again.
 
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Discussion Starter · #17 ·
Thanks D, sorry you and your wife had a bout with it. I hope you continue to heal and stay safe.
 

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As per ZXtasy...hope a speedy recovery/normalization D-Fresh
 

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Thanks all for the well wishes!
 
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