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Cam chain tensioner upgrade.


mikeR1100R

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I know this has been discussed in previous threads, but my question is this: If I buy replacement tensioners are they all the upgraded part or do I have to make sure to specify that I want the upgraded version?

Thanks,

Mike

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Only the LH tensioner needs the upgraded part, which is the one specified for the R1200xx. I would ask for that to be sure of getting the right one.

 

Andy

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I know this has been discussed in previous threads, but my question is this: If I buy replacement tensioners are they all the upgraded part or do I have to make sure to specify that I want the upgraded version?

Thanks,

Mike

 

I just finished changing out the LH tensioner. I've got the part numbers somewhere at home, so I'll try to hunt them down and post tonight for you.

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Joe Frickin' Friday
Only the LH tensioner needs the upgraded part, which is the one specified for the R1200xx. I would ask for that to be sure of getting the right one.

 

Never understood this. Why is only the LH cam chain prone to rattling? Why not the RH one?

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Only the LH tensioner needs the upgraded part, which is the one specified for the R1200xx. I would ask for that to be sure of getting the right one.

 

Never understood this. Why is only the LH cam chain prone to rattling? Why not the RH one?

 

Because it is the other way up. The tensioners are oil-filled and rely on oil pressure to do the job. The LH one drains down and so leads to rattle. The RH one is the other way up and stays full.

 

Andy

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Here are the part numbers for the upgrade that I ordered last year.

 

cylinder 11317688629

piston 11317656922

seal ring 7119963308

 

 

 

 

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[

Because it is the other way up. The tensioners are oil-filled and rely on oil pressure to do the job. The LH one drains down and so leads to rattle. The RH one is the other way up and stays full.

 

Andy

 

Kinda makes you wonder what BMW engineers were thinkin' about when they devised this jewel?

 

MB>

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Kinda makes you wonder what BMW engineers were thinkin' about when they devised this jewel?

 

MB>

The engineers did an OK job on this part. It is only to satisfy the likes of me who don't like that initial clatter that they changed the design.

The tensioner (clatter or no clatter) has shown itself to be totally reliable.

 

Now as to HES, Stick coils, Rear brake callipers, headlight usefulness and gearbox alignment, then you have a point.

 

Andy

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Now as to.... Rear brake callipers,

 

What's wrong with them?

 

A lot of owners find that the left hand pad wears much faster than the right also you will find many instances of rear discs running Very hot because the rear calliper often drags lightly.

This is not true for every 1150RT, but certainly for many.

 

 

Andy

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Now as to.... Rear brake calipers,

 

What's wrong with them?

 

A lot of owners find that the left hand pad wears much faster than the right also you will find many instances of rear discs running Very hot because the rear caliper often drags lightly.

This is not true for every 1150RT, but certainly for many.

 

 

Andy

 

The reason I asked was that in the past few weeks I've noticed just that :mad:

 

Can one perhaps disassemble the caliper, clean &/or hone to eliminate this?

 

In the past I've noticed some slight dragging of at least one front caliper piston immediately after replacing the pads but after wearing in a bit, all seems OK (on the front).

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Now as to.... Rear brake callipers,

 

What's wrong with them?

 

I had the same issue on my 1100R. A quick sanding of the retention pins with 1000 wet/dry sand paper polished them up and eliminated the sticking pad. The initial pad was gone at 17k miles, the second set post-polishing were barely worn at 33k miles when I sold the bike.

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Now as to.... Rear brake callipers,

 

What's wrong with them?

 

A lot of owners find that the left hand pad wears much faster than the right also you will find many instances of rear discs running Very hot because the rear calliper often drags lightly.

This is not true for every 1150RT, but certainly for many.

 

 

Andy

 

More than you ever wanted to know how to address this issue

 

http://advwisdom.hogranch.com/Wisdom/BFDRear2.1.1.pdf

 

 

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