The New And Improved Unofficial R65 Forum V2
Technical Discussion => BMW Technical Q&A, Primarily R65 => Topic started by: Semper Gumby on December 19, 2007, 01:25:27 PM
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Hi Gang,
It's been a while but here are the pictures. As promised:
The first picture shoes the PAD modification so that the brembo pad will pit in the ATE caliper. You have to cut a square notch down to a depth even with the center of the two mounting holes. Once this is done all you really need to do is fit the pads to the calipers. If they do not move freely in the caliper then you must clean and inspect the caliper. Make sure there is no metal flashing (from casting getting in the way. You might have to take a file to the the caliper or the pad to get this done. These are Brembo Galifer Green Kevlar pads part # FD13-G1532 from www.cyclebrakes.com. Good people who actually called me back when I left a message!
(https://bmwr65.org/smf/proxy.php?request=http%3A%2F%2Fi201.photobucket.com%2Falbums%2Faa12%2FSemper_Gumby%2F20071219BremboBrakepadModtoATEcalip.jpg&hash=0587dbc0a534eb7223fd66022b9324e9cfaad6b5)
Second pictures shows the pads installed with inspection caps off. When the two pads press together enough to almost touch the spring (Metal piece in center then the pads are worn out. Replace them now.
(https://bmwr65.org/smf/proxy.php?request=http%3A%2F%2Fi201.photobucket.com%2Falbums%2Faa12%2FSemper_Gumby%2F20071010R65RHFrontBrake.jpg&hash=9713d49d457052948d9038772de7c584ce3d540d)
Last picture showes the dual EBC disc installation.
(https://bmwr65.org/smf/proxy.php?request=http%3A%2F%2Fi201.photobucket.com%2Falbums%2Faa12%2FSemper_Gumby%2F20071010R65FrontwheelRH.jpg&hash=68b1cf4e0888baf2881ffaa83f6cea5002da7d83)
Hope this works.
TTFN,
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I had to 'modify' the EBC graphite pads # FA18 in the same manner to get them to fit.
Bill, where did you get the fittings to use the stainless flex lines all the way to the caliper ?
There is usually a rigid metal tube that threads into the caliper.
The rust marks on the rim, is this what to expect from using the EBC steel rotors in wet conditions ?
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Interesting. Does nobody carry pads for the ATE caliper anymore or just not in the compound you wanted?
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They do at the shop I help out at, not that that helps you!! LOL
http://www.munichmotorcycles.com.au/product/371
Bill.........................;-)
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I chose the EBC pads, because they were less costly than the OEM, and I had feed back from a co-worker that had installed them on his R100, and said he could tell the difference in braking.
I got them from Bike Bandit the same time I got the EBC steel rotors for about $18US for a set.
Also they worked great with EBC steel rotors from accounts on the internet that I have read.
I was told not to expect more than 30,000 miles out of a set, due to the fact the friction material was 'softer'.
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Bob, did you also modify the pads to make them fit? I think I still have my original ones, at 55,000 miles, but they're not worn out yet. I would probably just be skidding around on wet pavement anyway. I guess it's better than snow and ice, but it gets old.
Bill, is that price for one pair or two pair? Many of us have dual calipers.
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Ed,
I had to modify the EBC pads or more precisely, the steel backing plate, due to no cutout for the anti-rattle spring.
Apparently the FA18 pads are used on a few bikes other than BMW's, and I guess the theory behind it, is if you don't know how to 'make' them work for your bike, you shouldn't be changing the pads in the first place !
Only took about 15 minutes with a rotary file installed on a die-grinder to remove the excess material.
That price was for one caliper, I needed to get two, due to the fact that I also have the dual front discs on my '81.
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Bill, is that price for one pair or two pair? Many of us have dual calipers.
That price is one set, though remember it's in AU$. I populated the products section of the website with descriptions and photo's, so wherever possible, put in a photo of exactly what you get for the price displayed.
Bill......................;-)
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I had to 'modify' the EBC graphite pads # FA18 in the same manner to get them to fit.
Bill, where did you get the fittings to use the stainless flex lines all the way to the caliper ?
There is usually a rigid metal tube that threads into the caliper.
The rust marks on the rim, is this what to expect from using the EBC steel rotors in wet conditions ?
I had a gent hear in Atlanta Make them for me. Aeroquip. He saw the fitting ans asked if I would like the line to go the caliper. I of course said yes.
Rust marks - Yes. The EBC rotors rust when left out in the rain at the company parking lot. Thank goodness it is starting to rain again! Price to pay for really good brakes.
Justin - I have only been able to find BMW pads. I don't know of anybody that makes ATE pads in the Kevlar compound that I like. Now if somebody has a source I would love to know!!!!!! (Yesh!)
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You know I googled "EBC FA57 Kevlar" and came up with
http://www.mawonline.com/google/47665.HTM The picture is wrong and the description is worrying but.....
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A lot of catalogs are flat wrong or at least misleading about the application. FA57 is the correct pad(s) for my '81 with dual ATE calipers. The FA18 is for the Brembo calipers. My local bike shop was kind enough to order in both sets so we could determine which one was acutally correct.
http://www.bobscycle.com/AP/AP.EBC.STREET.BMW.HTML
P.S. I believe that the ATE calipers are NLA and if you have to replace them it will be with Brembos. I don't think ATE rebuild kits are available either....
<Neal>
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Neal will the Brembo calipers fit the same forks as the ATE Calipers? I have a European '79 R65 with dual front brakes and expect I will have to replace the calipers sometime ...possibly soon. I emailed Brembo but never received an answer. Do you have a Brembo part number for the ATE replacement?
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.................. I don't think ATE rebuild kits are available either....
<Neal>
Got plenty here!!
http://www.munichmotorcycles.com.au/product/2154
Bill....................;-)
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Neal will the Brembo calipers fit the same forks as the ATE Calipers? I have a European '79 R65 with dual front brakes and expect I will have to replace the calipers sometime ...possibly soon. I emailed Brembo but never received an answer. Do you have a Brembo part number for the ATE replacement?
The answer is YESH! The same fork leg part number is listed for the Brembo and Ate bikes. But if you can get the rebuild kits for the Ate's why not rebuild 'em. Save a bunch of money.
TTFN,
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My bad on the availability of the ATE repair kit, my memory fails me once again. I think the later model Brembo caliper is a direct replacement afaik.
Has anyone actually rebuilt their calipers? I was just wondering. About 5 years ago I completely removed my calipers and MC and and flushed out everything real good when I put on new pads. I intended to split the calipers open to clean the insides, inspect the seals etc. but was unable to break the bolts loose. I busted a socket trying and quit before I ruined something else :o I am guessing that lots of heat may be required to release the thread sealant??
<Neal>
P.S. I have a new MC sitting on my toolbox waiting for me to install it. The old one has been rebuilt a couple of times but it seeps and sometimes requires a 'diaper' to keep it from soiling itself. Thinking about installing all new brake lines while I am at it. Sources? Prices? Suggestions? OEM?
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I have rebuilt all three Brembo calipers on my '81 R100 and both front Brembos on the '82 R65LS - no problems (other than having to make two caliper pistons...) or surprises.
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I rebuilt both my ATE calipers with kits from BMW. I had no trouble getting them apart. I think I blew the pistons out into a towel with a grease gun! There was crud in my RH caliper that was preventing the piston from retracting. The LH caliper from Bluemoon was in better shape. There was a bit of corrosion in the bottom back which I cleaned out with some Scotch Brite (lightly) and a sharpened wooden dowel. I also payed close attension to cleaning out the groove for the Square O-Ring. That was a while ago so its probably about time to go back for a look to see if the "crud" has returned.
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I hope that the crud happens when the fluid isn't changed regularly. Assuming annual changes, how often do you think those things need to come apart?
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Ed, that's my thought...
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Thanks for the feedback. I will give it another try next time I get ambitious. The brakes still work great and no leaks or seeps (knock on wood) but I suspect that a bit of crud has accumulated over the years.
<Neal>
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The front brakes on my R65 squeal terribly. I have replaced the pads in the ATE calipers with new OEM pads and dressed the rotors with a scotchbrite pad on an air grinder. This stopped the squeal for a short while, but it came back. Is this a disc problem or a caliper problem? Is it common on the dual ATE's?
I have a couple extra sets of F08 Brembo's that I could mount, but I notice that the mounting bolt threads are in the leg and my F08's (from bevel Ducati's) are in the calipers. I could drill them, but if this won't help the problem I don't want to ruin the value of the calipers for Italian bikes.
Any suggestions?
Ron
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Brake squeal is caused by the pads vibrating at a high frequency. The easiest way to "fix" this is to spray a coating on the back to dampen the vibrations. Permatex makes a product called "Disk Brake Quiet" that works very well and I have had wrenches tell me they just spray a couple of heavy coats of some sort of cheapo enamel paint on the back.
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+1 what Justin suggests - assuming that you have checked your rotors and pads first to ensure that there isn't something stuck in there that could be scoring / scraping on your rotors. ( I live on a gravel road and occasionally little bits of stone that seem to be as hard as diamond sometimes can get up in there ). I have used the permatex stuff with good results, though YMMV and it may need to be re applied after some 1000s of miles. I think that any relatively thick enamel pain that sticks well could work, too.
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I hope that the crud happens when the fluid isn't changed regularly. Assuming annual changes, how often do you think those things need to come apart?
Hi Ed,
I change the fluid out once a year and still I get turned color fluid. But my bike spends a lot of time out of doors (in the company parking lot.) I probably should be cleaning out the calipers too. As long as the pistons pull back I am loath to pull them apart.
TTFN,
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I managed to break apart the caliper halves on my Brembos. One piston is still stuck in the cylinder & I'm looking for a rebuild kit. Any web sites you can recommend? The piston size is 48mm. "F09" (?) type
Yes it took my two foot "knuckle breaker" and a great deal of effort to break the two bolts loose once I got it to my vise. :-/
Ed
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There is a BMW rebuild kit for Brembo calipers , part number 34111454807. One kit will rebuild one caliper, cost is about $21 USD.
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Thanks Bob ;)
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I have used them and it is a genuine Brembo rebuild kit. Comes with the square cross-section piston seals, the rubber dust boot/seal, bolts, and a little tube of grease to make everything slide back together real easy. You will also need to get the"34211238059 MOUNTING KIT CALIPER" if your retaining springs and stuff are real bad, about $10 and you need two...