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Thread: RT1150 ABS Pump Rebuild

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    Should Get Out More Makman's Avatar
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    Default RT1150 ABS Pump Rebuild


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    Does anyone know a specialist that does ABS Pump rebuilds. I've a colleague (Director in my charity) who has a lovely RT1150 with 15k on the clocks sitting at Barnstormers with a failed ABS pump. They quoted him over 1200 to replace it.

    I'm assuming he can get a rebuilt one for way less and a warranty. Any people know of engineers who do such magic on those parts?

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    Should Get Out More KungFooBob's Avatar
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    Default Re: RT1150 ABS Pump Rebuild

    There are do it yourself guides on the tinternets.

    I used a guide for a K series to help me repair the pump on my 330 car.

    I can almost guarantee it will be sticky brushes. A temp fix is to give the pump motor housing (the round black bit, not the alloy valve body) a few knocks with a big 'ammer.

    To proper fix it you have to drill in a specific place to release the internal tang that hold the pump motor cover on and then you can get at the brushes to replace them.

    The biggest most popular repair company for car ABS is probably BBA-Reman, dunno if they do bike ones.

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    Should Get Out More Horse's Avatar
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    Default Re: RT1150 ABS Pump Rebuild

    Are SH ones available?

    My RT's ABS packed up- Hughendon couldn't get their diagnostics to talk to the system, so it could be anything from a dodgy connector for their cable, 'inwards' to far more complicated and expensive.

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    Should Get Out More maccecht's Avatar
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    Default Re: RT1150 ABS Pump Rebuild

    Makman ask on here very knowledgeable chaps and very helpful
    https://www.bmbikes.org.uk/index.php

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    Default Re: RT1150 ABS Pump Rebuild

    Word on the street is can't be done. Quote from a BMW mechanic friend on UKGSR when several folks asked about repairing the module.
    I quite like the ABS Happily could do without the Servo assist if I could retain ABS

    I have worked on these bikes since the First 1150RT were released in 2003

    I hate the complexity of the system and the fact that you have no fall back to standard brakes if they fail

    Having watched Hunda67's thoroughness in his thread on the rebuild? I would say If you cannot afford a new servo? Go straight for servo removal End off I have seen so many variations of servo failure The only ones I know still okay were the ones that I did ANNUAL full brake fluid flushes One at 98K just recently Only 26K on my 1200GS

    They are just too much of a toss of a coin to be risking your life on a Maybe / if / Possibly !!!

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    Should Get Out More Makman's Avatar
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    Default Re: RT1150 ABS Pump Rebuild

    Thanks all. I've pointed him at the mentioned site and told him to register. He is in the middle of buying a house and does not want to spend to much on the bike. Barnstormers offered him 250 for the bike....

    Saying that, he only paid 1200 for it when he bought it and it is really mint, as in looks brand new! Bugger all mileage on it and the ABS unit goes pop.... daft really.

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    Should Get Out More Horse's Avatar
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    Default Re: RT1150 ABS Pump Rebuild

    Quote Originally Posted by maccecht View Post
    Word on the street is can't be done. Quote from a BMW mechanic friend on UKGSR when several folks asked about repairing the module.
    That's talking about servo assisted brakes, not ABS, isn't it? On 'normal' braked bikes, if the ABS fails the braking still works as normal.

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    Should Get Out More Horse's Avatar
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    Default Re: RT1150 ABS Pump Rebuild

    Quote Originally Posted by Makman View Post
    Thanks all. I've pointed him at the mentioned site and told him to register. He is in the middle of buying a house and does not want to spend to much on the bike. Barnstormers offered him 250 for the bike....

    Saying that, he only paid 1200 for it when he bought it and it is really mint, as in looks brand new! Bugger all mileage on it and the ABS unit goes pop.... daft really.
    Legendary BMW reliability Don't know why I'm smiling, my Beemers have cost me a fortune in repairs . . .

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    Default Re: RT1150 ABS Pump Rebuild

    Quote Originally Posted by Horse View Post
    That's talking about servo assisted brakes, not ABS, isn't it? On 'normal' braked bikes, if the ABS fails the braking still works as normal.
    The failures on the R1150 versions are well documented. What years are your respective bikes?
    If you want to get rid and have normal brakes Drfarkoff did an excellent post here
    http://www.ukgser.com/forums/showthr...50-IABS-system

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    Default Re: RT1150 ABS Pump Rebuild

    Quote Originally Posted by maccecht View Post
    The failures on the R1150 versions are well documented. What years are your respective bikes?
    If you want to get rid and have normal brakes Drfarkoff did an excellent post here
    http://www.ukgser.com/forums/showthr...50-IABS-system

    This. Strip the abs/servos out and ride with traditional brakes.

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    Should Get Out More Horse's Avatar
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    Default Re: RT1150 ABS Pump Rebuild

    Quote Originally Posted by maccecht View Post
    What years are your respective bikes?
    If you want to get rid and have normal brakes Drfarkoff did an excellent post here
    http://www.ukgser.com/forums/showthr...50-IABS-system
    Mine is an R850RT, age-wise it's contemporary with the R1100RT, so ABS but no servo. As I said earlier, ABS failure leaves you with a normal set of brakes.

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    Default Re: RT1150 ABS Pump Rebuild

    Stick a set of 'normal' Brembos on, jobs a good'un

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    Default Re: RT1150 ABS Pump Rebuild

    Do we have a friendly forum MOT tester?

    If a car is fitted with ABS it has too work, the light must come on and go out as required... if no light or it stays on it's a failure.

    All my bikes that have had ABS have lights that work the same way too, is it an MOT fail for a motorcycle or just a car?

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    Default Re: RT1150 ABS Pump Rebuild

    Quote Originally Posted by Horse View Post
    Mine is an R850RT, age-wise it's contemporary with the R1100RT, so ABS but no servo. As I said earlier, ABS failure leaves you with a normal set of brakes.
    Makman's mate may have IABS which is not like ABS 1 and 2 if it goes you need to be superman to get enough pressure to bypass the servos to get any braking. Depends o the model year

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    Default Re: RT1150 ABS Pump Rebuild

    Quote Originally Posted by GiantPygmy View Post
    Stick a set of 'normal' Brembos on, jobs a good'un
    Are the callipers actually different for ABS/non-ABS?

    I was always under the impression (IIRC) that it was just the control boxes and (oddly) the lever microswitch operating the other way around*, that were the main differences.




    * Standard brakes - lever switch is 'open' until lever is pulled, thus 'closing' the circuit to light the brake light.
    ABS - lever switch is 'closed' until lever is pulled, thus 'opening'/'breaking' the circuit to tell the control box to active servos, and turn the brake light on.

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