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post #1 of 7 (permalink) Old Mar 17th, 2010, 9:42 am Thread Starter
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stuck grub screw

Hi I'm replacing pads and hoses on my 2000 k12rs and can'nt remove the grub screw from the filler adapter on the right front caliper. I have already almost striped it, I will try an easy out today- any suggestions? thanks dave
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post #2 of 7 (permalink) Old Mar 17th, 2010, 11:55 am
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Purchase a bleed nipple and replace the whole filler adaptor.
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post #3 of 7 (permalink) Old Mar 17th, 2010, 12:13 pm
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Grub Screw? You must mean the Bleeder? My bike has no such thing as a grub screw on the caliper. Pics ???

Heat it up, let it cool off a bit then work it back and forth, Yes tighten then loosen.Shield the caliper with some sheet metal that way you can heat the bleeder only.

As soon as you get some movement, lube with penetrating oil and keep working it out back and forth to clear the threads. Do not try to unscrew it all at once, it may jam in there and strip the threads.

If this does not work....more heat. I'l try anything before an Easy Out, if it breaks in there you are really screwed.

Most times I'll use small Vise Grips instead of a wrench, easier to feel movement, and those bleeders are pretty standard, auto parts stores should have them.

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post #4 of 7 (permalink) Old Mar 17th, 2010, 1:16 pm Thread Starter
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My bike has the filler adapter with the grub screw ( see page 471 of clymer k1200rs/gt/lt manual) I tried to easy out the grub and ruined the filler. can I remove the filler(already done) and just screw in a bleeder. thanks dave
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post #5 of 7 (permalink) Old Mar 17th, 2010, 6:19 pm
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Interestingly enough Max does not even list that "Filler Adapter" on any years...! Looking at Clymer, does not show much, just the drawing and procedure. The BMW Shops & Parts manuals I have for those years don't even mention it either.

It depends on what the threads/seat looks like in the caliper as to if you could install a bleeder or not.

You may get a better idea by looking at this catalogue, that one is VIN number specific.
The Logon info is on the homepage.

http://www.sjbmw.com/parts.asp?s=partfinder

You may be able to find a plug to replace the filler adapter, and bleed by loosening it, you'd spill a bit of oil but could get you back on the road.

Benelli 50cc at 14
Yamaha RD 200 at 16
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Honda CB 750 F at 18
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post #6 of 7 (permalink) Old Mar 17th, 2010, 6:31 pm Thread Starter
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looks like removing it and replacing it with a bleeder screw will work- interestly the right caliper didnt have a bleeder on it- the bike is 10 years old and I wounder how they serviced it????? Thanks for the info and input-regards dave
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post #7 of 7 (permalink) Old Mar 24th, 2010, 6:50 am Thread Starter
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Yep, the adapter screwed off without any problem and the bleeder screw fit without a hitch- I assume this is what most dealers did this at the first brake service- that is why not many bike out there still with them. ez fix for a stripped grub screw.
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