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Old 11-07-2012, 02:06 PM   #1
MikeO OP
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Question New noise from RH Head area - high mileage 1150 ADV...

Hi all,

For the last few days I've noticed a new noise from the RH head area on my 2002 1150 Adv - 160k miles.

I've embedded a couple of videos - simply because I don't have a facility just to record sound. The noise is a high pitched clicking - I'm wondering if it's arcing from the HT lead - although there's no visible sign of that.

Plus the whole thing clanks like a Victorian central heating system, but frankly, I'm used to that...







Any ideas?

Mike :cool:
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Old 11-07-2012, 02:15 PM   #2
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Any ideas?
locknut fallen off valve adjuster? (or just a loose valve)

I'm amazed you can put up with all that racket - Certainly seems like self destruction is imminent but if it's been doing that for a long time already, perhaps not. At 160K miles, it doesn't owe you much anyway.
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Old 11-07-2012, 02:19 PM   #3
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Cam chain tensioner? Sounds like it's flopping around pretty good.
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Old 11-07-2012, 02:28 PM   #4
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Sorry - should have mentioned that there has been no roughness, drop in performance or change in fuel consumption. The video was taken at the end of a 250 mile day and the engine was hot, for what it's worth.

It doesn't sound as rough as a nut floating about, it's quite a delicate sound - plus I would expect the tappet in question to adjust itself without a locknut and produce some other symptom - typically performance.

I did the left hand cam chain tensioner mod about three years ago.

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Old 11-07-2012, 04:05 PM   #5
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Did you check throttle shaft bushing on that side? Small thing but can be noisy.
Could also be a breaking up cam chain guide. Look in the oil for black plastic crumbs.
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Old 11-07-2012, 05:28 PM   #6
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He'll of a coincidence.

I just took video of the same thing. Same problem, same sound, same side. I hear a " delicate" chain type sound like you describe. 2004 1150GS. I figured I would crack it open this weekend and do the valve check and rocker arm end play first. After that I guess it's cam chain tensioner or chain guide. I will be watching your thread and will report anything I find.
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Old 11-08-2012, 02:56 AM   #7
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Any chance to share the bikes history? At that mileage it's hard to guess.

However, also due to a clonking noise, I recently pulled apart my 1150 with 70k miles, 1 out of 4 cam chain guides were left. The rest broke off and ended in pieces. Even the tensioner piston, right hand side, was badly worn due to direct contact with the chain.

Mind you the bike was running fine if not for the noise.

I changed the set, as well as he chains but held back on valves, to keep costs down.

Now an inlet valve is bent, discernible by trying to spin it in place but it won't.

I am still waiting for the parts to come and provide an update.
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Old 11-08-2012, 07:48 AM   #8
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Sounds like it may be a loose pushrod head. It has shown up on higher mileage engines.
There is a thread on this site that deals with that subject.
http://www.advrider.com/forums/showthread.php?t=215134
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Old 11-08-2012, 08:33 AM   #9
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Thanks for all replies.

History:

I have owned the bike from new (Mar 2002). Main dealer serviced for the first two years (up to 42k miles IIRC) - by me thereafter. The heads have not been off the bike. 6k oil changes using dino oil. Cam chain tensioner mod fitted about three years ago.

Mike
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Old 11-08-2012, 09:27 AM   #10
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Pull the valve cover and look for debris from a tensioner....hopefully it's not more than that.
If it is tensioner debris, remove what you can and ride on.
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Old 11-08-2012, 09:30 AM   #11
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Video recorded this morning when the engine was cold...

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Old 11-08-2012, 10:08 AM   #12
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More vids

So is the knocking normal?

pcwirepro screwed with this post 11-09-2012 at 05:41 AM
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Old 11-08-2012, 12:15 PM   #13
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Quote:
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Video recorded this morning when the engine was cold...
There's a tapping throttle butterfly (worn shaft) but I don't think that's the noise we heard when it was hot
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Old 11-08-2012, 12:46 PM   #14
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Quote:
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There's a tapping throttle butterfly (worn shaft) but I don't think that's the noise we heard when it was hot
Yes, I only noticed how bad that was when I played the video back - you can hardly hear it

I have my original TBs in a drawer - I think I'll have them refurbed over the winter.

It's a lot quieter when it's cold, isn't it?

I'm still thinking in terms of HT arcing, from the type of sound it is...
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Old 11-08-2012, 01:46 PM   #15
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Id be looking for the simple things first up. Suggest a hands on inspection of your crash bars to rule out a crack or break. If a stethoscope is not available improvise with a large and long screwdriver to try and locate where the noise is emanating from. Next , off with the valve cover to see if anything obvious as other posters have suggested, ie missing or loose locknut etc. You mention suspect arcing, makes me think a loose spark plug rocking around in it's hole. Good luck and good hunting.
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