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Old 05-04-2015, 05:22 AM   #1
MassiveLee OP
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Right cylinder chain tensioner

I left Montreal 6 days ago on my 2006 1150GSA SE, rode to Sebring for a 3-day BMWCCA Club Racing event and am currently in the Gulf of Mexico, expecting to reach Panama City tonight and returning North thru Alabama and Tenessee. Since I left (around Delaware), I experienced ocaasional right cylinder chain slack on start-up most of the times, yet intermitent. Maybe my oil is getting thin from the heat (high speed, then stopping for a pay toll), but I think the tensionner's spring might have gotten weak at 120,000 miles.

I am thinking fitting a new tensionner assembly. I understand that the problematic one that triggered a redesign was for the left hand cylinder, and wondering if I can fit the same upgraded design on the right hand cylinder.


MassiveLee screwed with this post 05-04-2015 at 05:37 AM
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Old 05-04-2015, 06:37 AM   #2
mouthfulloflake
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Not sure if they are interchangeable ( left to right) Lee, but I have read here on ADV about a guy that simply used a longer stiffer spring in the old designed tensioner too.

might do in a pinch to keep you from waiting on parts potentially.

edit.

according to Max BMW parts fiche there are different components and part numbers for the RH and LH tensioners for a 1150gs
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Old 05-04-2015, 06:44 AM   #3
ElMartillo
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There is a right-side-specific tensioner, according to MAX's fiche. It includes a spring.
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Old 05-04-2015, 09:53 AM   #4
jetwhine
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The upgraded model is not just the piston. The whole assembly is different. I would not try to adapt it to the right. I would think that with the hot oil and a sloppy piston you are getting leaking around the piston on the old right side. If I remember correctly the right side assembly is shroter than the left to begin with. I would just get the correct one for the right side. The right side tensionor is not problematic due to how it is positioned on the cylinder. I'm sure you know all this though.
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Old 05-04-2015, 12:13 PM   #5
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When my 01 GS was relatively new, the cam chain got noisy. I removed the tensioner and cleaned the parts. There was some junk (likely some assembly lube) in the tensioner. I reoiled the tensioner (with Rislone), reinstalled it and have not had any noise since.
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Old 05-04-2015, 12:16 PM   #6
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What oil are we talking about? How many miles?
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