• Welcome, Guest! We hope you enjoy the excellent technical knowledge, event information and discussions that the BMW MOA forum provides. Some forum content will be hidden from you if you remain logged out. If you want to view all content, please click the 'Log in' button above and enter your BMW MOA username and password.

    If you are not an MOA member, why not take the time to join the club, so you can enjoy posting on the forum, the BMW Owners News magazine, and all of the discounts and benefits the BMW MOA offers?

  • Beginning April 1st, and running through April 30th, there is a new 2024 BMW MOA Election discussion area within The Club section of the forum. Within this forum area is also a sticky post that provides the ground rules for participating in the Election forum area. Also, the candidates statements are provided. Please read before joining the conversation, because the rules are very specific to maintain civility.

    The Election forum is here: Election Forum

1992 k1100lt Brake Line and Bleed

tourunigo

New member
Putting Spiegler brake lines on bike. Clymers states that bleeding on ABS K1100 must be done with a power bleeder. Is this gospel or is there another way? Seems that the non ABS can be done the old fashion way but not the ABS equipped. Never did this particular job before so any guidance will be helpful. BTW, this LONG overdue job is being done because of a rear brake applying itself. This, as it turns out, is due to the breakdown of flex hose liner and the subsequent spewing of debris internally. ( I know, I have been a real slacker in attending to brake line maintenance so this is how the gods are making me serve penance, I suppose :nono) Thanks for comments. - Bob
 
Last edited:
Maybe I'm overthinking this procedure but....I also read a reference to removing the front pads when bleeding front brakes. :scratch In addition to my original inquiry, is this removal also standard procedure? - Bob

Edit Update: I think that I found a good response to my question over at Motobrick.com. http://www.motobrick.com/index.php?topic=1135.0 Will bypass the power bleeder approach but use the front pad removal/compressed calipers plan (maybe that is common knowledge but new to me). Looking forward to accomplishing this obvious upgrade to system.
 
Bob,

I use this bleeder: http://t.harborfreight.com/brake-fluid-bleeder-92924.html It works well. I made an adapter for the refill bottle using an old master reservoir lid for the front.

The reason they recommend compressing the pistons is to minimize the amount of old fluid in the system thereby increasing the odds of getting all the old fluid replaced with new. I remove the pads and use two plastic door frame shims (most hardware stores) between the rotor and the piston to hold them back.



:dance:dance:dance
 
Bob,

I use this bleeder: http://t.harborfreight.com/brake-fluid-bleeder-92924.html It works well. I made an adapter for the refill bottle using an old master reservoir lid for the front.

The reason they recommend compressing the pistons is to minimize the amount of old fluid in the system thereby increasing the odds of getting all the old fluid replaced with new. I remove the pads and use two plastic door frame shims (most hardware stores) between the rotor and the piston to hold them back.



:dance:dance:dance

thanks, will proceed without bleeder but will make a the shims out of wood and proceed as suggested. - Bob
 
Bob,

Before you start to bleed by pumping the lever, squeeze the lever to see what the normal operateing travel is. Tape a block of wood to the grip so that the lever will not go closer to the grip than normal.

Inside the master cylinder there is an area that the piston seal normally doesn't reach. Settled out moisture in the fluid will cause this area to corrode and pit. When you pull the lever all the way to the grip during bleeding, the piston seal travels over these pits and can damage the seal. Be safe and avoid this possible failure.

Same on the rear. Although there is no convenient place to tape a block, try to avoid using more than 1/2 stroke.




:dance:dance:dance
 
Bob,

Before you start to bleed by pumping the lever, squeeze the lever to see what the normal operateing travel is. Tape a block of wood to the grip so that the lever will not go closer to the grip than normal.

Inside the master cylinder there is an area that the piston seal normally doesn't reach. Settled out moisture in the fluid will cause this area to corrode and pit. When you pull the lever all the way to the grip during bleeding, the piston seal travels over these pits and can damage the seal. Be safe and avoid this possible failure.

Same on the rear. Although there is no convenient place to tape a block, try to avoid using more than 1/2 stroke.




:dance:dance:dance

Thank you for that. Read a variation of that on another site but you have confirmed it even moreso. - Bob
 
Back
Top