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2004 R1200GS valve adjustment left side only

3426 Views 6 Replies 5 Participants Last post by  comatox
Hi all.
I did the service about 1.5k ago and it seems that something is not right in the left side head. Once the engine gets hot I can hear loud mechanical ticking based on the revs. Just like the valves would not be adjusted correctly. (hopefully just that). Note: when doing them first time, we found that the exhaust valves were too tight and we set them to the correct clearance.
The thing is that when we did the service last time we also adjusted the valves. :confused:

BTW I have 30k on the odometer at the moment.

Now the issue / question. I have one brand new gasket set for one head and the noise is only coming from the left side. Is there a way to adjust the valves by taking the valve cover off from the left side only? I know that the right side has the little arrow on the cam chain sprocket to get the right cylinder to TDC (top-dead center). But I think I will need a new gasket if I take the right side off. Any way to set the left side to TDC?

Thank you all in advance. Also if you have other ideas what else could be making those ticking noises once the engine is hot.

:wink2:
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No help with the "tic" but everyone seems to agree that the valve cover gaskets are robust and can be used until and unless they show signs of cracking or other damage.
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What Crucian said regarding valve cover gaskets. While I had a spare set on hand just in case I never used them on my '05 GS. The guy I sold the bike to didn't use the spares, either. Same gaskets for 120-130K miles. I did rotate the inner "donut" every time I had the cover off.

As for ticking noise --- could it be the cam chain tensioner?
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What Crucian said regarding valve cover gaskets. While I had a spare set on hand just in case I never used them on my '05 GS. The guy I sold the bike to didn't use the spares, either. Same gaskets for 120-130K miles. I did rotate the inner "donut" every time I had the cover off.

As for ticking noise --- could it be the cam chain tensioner?
Not sure about the cam chain tensioner. Could check that. Will be taking her apart tomorrow afternoon. Do you know any guides for R1200GS can tensioner and how to spot if its broken/damaged/worn? Thanks
You can easily find TDC without taking the right side valve cover off, one simple way is to use a wooden dowel or similar placed in the spark plug hole than rotate the engine slowly until it stops moving out check the cam positions to make sure you that are on the compression stroke otherwise rotate the mill another 180 degrees.

The left side cam chain tensioner is the one that normally needs replacing, there is not really any guide to figuring out if it is bad or not, you just replace it and see if the noise is gone, I would do this before diving in for another valve adjustment provided that are confident in the quality of work performed on the previous valve adjustment.
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in 2004, it was an 1150, was it not? It was for the roadster, though the GS may be different?

It will be to your advantage to remove both spark plugs to find tdc so you are not fighting against compression

Gaskets last forever and are $$$. I think I have one laying around if in need, from my 2004 roadster

As Marc says, MAKE SURE THE LITTLE DONUT AROUND THE PLUG IS FITTING PROPERLY, otherwise your boot will be FULL of oil.

When the valve cover comes off expect to lose up to a couple of hundred ccs of oil.
Sorted ! :)

First of all! Thank you all for the replies. What an amazing community. Received great advice from you. So yesterday I decided to take both covers off and check all the clearance levels.
Right side was all in spec, however the left side exhaust valve clearance was at 0.5. Also the left gasket seemed to be damaged enough to be replaced with the one new gasket I had, including a new O ring as well.

I put it all together and presto :grin2: its nice and quite as much a boxxer can be. Rode the bike for 25miles and its still quite even with the engine hot. So its a success!!!

Thanks all again!
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