LT brake piston - BMW Luxury Touring Community
 
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post #1 of 6 Old Aug 18th, 2013, 7:45 pm Thread Starter
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LT brake piston

Doing the rear brake on my lt and all was well until I went to put my pucks in after the flush. I had not noticed that the right spacer had fallen out during the process. Anyway I now can put my left puck in but the right pistons are all the way out and I am not sure how to get them back in so I can put my brake in. They just seem to be stuck and I can't move them fear of the unknown!

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post #2 of 6 Old Aug 18th, 2013, 7:51 pm
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Re: LT brake piston

If they are not puking fluid then you should be able to push them back. Best way is use a wooden shim (home depot etc used for shimming up door frames). This is the easiest way as you can insert the one pad and a couple of shims to push the pistons back. I'll be passing through MO tomorrow on the way to CCR but not anywhere close to you, Festus then St Joseph.

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post #3 of 6 Old Aug 18th, 2013, 10:18 pm
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Re: LT brake piston

It takes a bit of force. Some leverage like John suggested will help. I assume the caliper is not mounted since you don't want to lever against the brake disc.

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post #4 of 6 Old Aug 18th, 2013, 10:37 pm Thread Starter
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Re: LT brake piston

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Originally Posted by jzeiler
If they are not puking fluid then you should be able to push them back. Best way is use a wooden shim (home depot etc used for shimming up door frames). This is the easiest way as you can insert the one pad and a couple of shims to push the pistons back. I'll be passing through MO tomorrow on the way to CCR but not anywhere close to you, Festus then St Joseph.
Thanks for the quick reply Guys the wood shims worked great, but wow I had to drive those right side pistons back in withe the wood shim with the back of a hammer. Case and point "keep the pucks or shims in place" while doing the procedure.
John your 2005 th 2009 LT brake CD was oh so worth witting for, your expert advise a made it easy. You all be safe on your trip to Oregon

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94 Hon RX 100cc going strong
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87 Suz 750 gone
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post #5 of 6 Old Aug 19th, 2013, 6:50 am
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Re: LT brake piston

Quote:
Originally Posted by Bajasteve
Thanks for the quick reply Guys the wood shims worked great, but wow I had to drive those right side pistons back in withe the wood shim with the back of a hammer. Case and point "keep the pucks or shims in place" while doing the procedure.
John your 2005 th 2009 LT brake CD was oh so worth witting for, your expert advise a made it easy. You all be safe on your trip to Oregon
I made wood blocks that are a snug fit in each caliper to use after I push the pistons in with an automotive compression tool. Works great for flushing and other times I have the brakes off and don't want to worry about a lever getting squeezed inadvertently.

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post #6 of 6 Old Aug 19th, 2013, 7:20 am
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Re: LT brake piston

with the calipers off I used a C clamp to push in the pistons but went a little too fast and ended up with some fluid on the floor..

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