TRC is primarily funded by ad revenue. If you like the content you find here, don't block the ads check them out instead. Thank you.
Page 2 of 2 FirstFirst 12
Results 16 to 25 of 25

Thread: RT1150 ABS Pump Rebuild

  1. #16
    A Bit Bored Big Red's Avatar
    Join Date
    Jan 2008
    Location
    Fife Scotland
    Posts
    215
    Like
    8
    Liked 67 in 50 posts

    Default Re: RT1150 ABS Pump Rebuild


    TRC is primarily funded by ad revenue. If you like
    the content you find here, don't block the ads check
    them out instead. Thank you.
    An abs lamp illuminated on a bike is not a failure.Tester may choose to advise, maybe not. Plenty bikes will not cancell the abs lamp until they are actually registering a road speed, ie being ridden down the road .

  2. #17
    Should Get Out More KungFooBob's Avatar
    Join Date
    Aug 2012
    Location
    The Forest Moon of Endor
    Posts
    16,198
    Like
    392
    Liked 7,078 in 3,990 posts

    Default Re: RT1150 ABS Pump Rebuild

    Quote Originally Posted by Big Red View Post
    An abs lamp illuminated on a bike is not a failure.Tester may choose to advise, maybe not. Plenty bikes will not cancell the abs lamp until they are actually registering a road speed, ie being ridden down the road .
    Thought as much, didn't think the brake rollers would have got up enough speed to turn the light off.

  3. #18
    A Bit Bored Big Red's Avatar
    Join Date
    Jan 2008
    Location
    Fife Scotland
    Posts
    215
    Like
    8
    Liked 67 in 50 posts

    Default Re: RT1150 ABS Pump Rebuild

    Quote Originally Posted by KungFooBob View Post
    Thought as much, didn't think the brake rollers would have got up enough speed to turn the light off.
    Also only turns one wheel at a time , would need to see a road speed from both wheels or would think it has a brake lock.

  4. #19
    Should Get Out More maccecht's Avatar
    Join Date
    Jan 2008
    Location
    South East England Kent.
    Posts
    6,681
    Like
    168
    Liked 892 in 495 posts

    Default Re: RT1150 ABS Pump Rebuild

    Quote Originally Posted by RiceBurner View Post
    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.
    Callipers are nothing to do with the ABS in the sense that any calliper can be used. It is the wheel sensor pump relays etc that perform the ABS operation by controlling the fluid pressure to the caliper anything goes wrong on these no ABS only manual braking. Unfortunately some BMW systems leave you with little or no braking when the ABS module fails.

  5. #20
    Should Get Out More RiceBurner's Avatar
    Join Date
    Jan 2008
    Location
    Hiding in your blind spot...
    Posts
    14,756
    Like
    3,766
    Liked 1,423 in 818 posts

    Default Re: RT1150 ABS Pump Rebuild

    Quote Originally Posted by maccecht View Post
    Callipers are nothing to do with the ABS in the sense that any calliper can be used. It is the wheel sensor pump relays etc that perform the ABS operation by controlling the fluid pressure to the caliper anything goes wrong on these no ABS only manual braking. Unfortunately some BMW systems leave you with little or no braking when the ABS module fails.
    Yeah - that's what I thought. I was just querying Giant Pygmy's assertion of "stick a set of 'normal' Brembos on".


    Which actually, isn't a bad idea as it goes, assuming the bike in question is using Tokicos. Brembos, ime, ARE better callipers and BMW used them almost randomly on the R259 production runs.

  6. #21
    Should Get Out More Makman's Avatar
    Join Date
    Feb 2008
    Location
    Barking at the moon.
    Posts
    8,532
    Like
    3,368
    Liked 1,766 in 1,083 posts

    Default Re: RT1150 ABS Pump Rebuild

    Quote Originally Posted by maccecht View Post
    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
    This matches his description of using the brakes. He said it really took a lot of effort to haul the bike up as the brakes required inordinate pressure to get them to function. Might hear back from him on whether he is keeping the bike or not. I've doubled the offer that Barnstormers made him for the bike, so who knows, maybe I'll have a project bike....... Either way, I hope he gets it fixed for a reasonable sum of money.

  7. #22
    Should Get Out More Makman's Avatar
    Join Date
    Feb 2008
    Location
    Barking at the moon.
    Posts
    8,532
    Like
    3,368
    Liked 1,766 in 1,083 posts

    Default Re: RT1150 ABS Pump Rebuild

    300 for a full rebuild of the servo/abs unit with a guarantee. Also had seals and bearings on the drive shaft sorted and fresh oil. Says the refurb unit has saved him at least 1500.... worth it! Should have the bike back in 3 days or so as the turnaround is quite quick. Work being done in SE London apparently.

  8. #23
    Should Get Out More RiceBurner's Avatar
    Join Date
    Jan 2008
    Location
    Hiding in your blind spot...
    Posts
    14,756
    Like
    3,766
    Liked 1,423 in 818 posts

    Default Re: RT1150 ABS Pump Rebuild

    Quote Originally Posted by Makman View Post
    300 for a full rebuild of the servo/abs unit with a guarantee. Also had seals and bearings on the drive shaft sorted and fresh oil. Says the refurb unit has saved him at least 1500.... worth it! Should have the bike back in 3 days or so as the turnaround is quite quick. Work being done in SE London apparently.
    Is he getting it done by Vines?? That'll be expensive....

  9. #24
    A Bit Bored
    Join Date
    Aug 2008
    Location
    Gravesend, Kent
    Posts
    19
    Like
    0
    Liked 0 in 0 posts

    Default Re: RT1150 ABS Pump Rebuild

    If it is one of the servo iABS models, I'd forget about fixing it unless you want to buy a whole working unit from another bike and fit it. New will come in at over a grand, and they are known for almost clockwork-like failure rates eventually so unlike the regular ABS units it's definitely not worth repairing.

    It is incredibly easy to remove the iABS and restore regular brakes though, the only part you need is a small pipe for the front brakes which need splitting off. The most common way of doing it doesn't involve any splicing of wires or anything like that so technically it'd be pretty easy going back to servo brakes if your wallet can handle it down the line.

  10. #25
    A Bit Bored
    Join Date
    Nov 2008
    Posts
    250
    Like
    228
    Liked 49 in 39 posts

    Default Re: RT1150 ABS Pump Rebuild

    Get rid


Page 2 of 2 FirstFirst 12
Go Back to Forum My Forum

TRC Affiliates - Help TRC make a small amount of commission