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Old 11-08-2012, 03:20 PM   #16
rheritage
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Quote:
Originally Posted by MikeO View Post
Video recorded this morning when the engine was cold...

That sounds like the right side TB shaft and bushing are shot. I did mine on my 02 GSA with 90K on it, settled that knocking right down. Then 2K later I did the left side both were pretty well shot. I order the kit from Dan Cata, worked perfectly. If you want to be sure it's the TB shaft, put your finger against the inside of the TB and press on the shaft cover, see if the knocking stops or changes pitch, if so, that's your problem.

Good Luck.
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Old 11-08-2012, 04:31 PM   #17
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Quote:
Originally Posted by MikeO View Post
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...
I'm pretty sure it is you right butterfly shaft. On the right side throttle body put your finger against the right side throttle cable where it is out of the sheaf. You should be able to feel the shaft vibrating. Just use very light pressure and you can probably make the sound go away.

I always found the right side of the boxer engine noisier than the left side.

If you thing it is a HT lead, run the bike in the garage ( doors open ) at night ( lights off ) and see if you can see any arching.
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Old 11-08-2012, 11:56 PM   #18
Jazz62
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If it's the higher pitched tapping sound right around the 12 to 14 seconds mark I'm betting it's the butterfly shaft.
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Old 11-09-2012, 01:57 AM   #19
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Here you go - Posted this before when others have asked about a similar noise , and they've found the same wear - try a search for camshaft wear.
I've also had three other bikes in the workshop since with the same wear
The strange thing is the cams on other side of the engine have been perfect.

Knocking noise from the R/H side - R1100 50K miles.
Cause = Worn cams, cam followers, cam/rocker holder and rocker arms.
The cylinder head after all the rocker gear and camshaft has been removed

Cam/rocker holder.

Cam and cam followers.

Camshaft.


Cam followers in the holder.

Cam followers

New cams and followers
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Old 11-09-2012, 03:57 AM   #20
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Wow, nice post. The followers look awful! Is this type of wear common? I can't recall seeing a follower face look so battered except for cases of extreme misadjustment or oil starvation.
Thanks!
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Old 11-09-2012, 07:22 AM   #21
Mike Ryder
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Steptoe, sir. I am sure that you know that countless 1150 owners are now removing their valve covers in dreaded anticipation. Well done. Thank you.
I just ran out now to have a look at mine. Have you any thoughts as to what may have caused this damage? It looks to me as though that head was over heated a bit.
Great pictures.
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Old 11-09-2012, 11:03 PM   #22
vintagerider
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Two suspected causes of cam follower damage are valve lash too tight and lubrication failure. By the looks of those heavy varnish deposits there was overheating and/or extended oil change interval. The engine calls for API SF/SG. Newer automotive oils are SL/SM with low levels of ZDP.
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Old 11-10-2012, 05:21 AM   #23
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Ok, i'll be the bunny, wtf is "zdp" / and is it a good thing or a bad thing?
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Old 11-10-2012, 05:26 AM   #24
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Ok, i'll be the bunny, wtf is "zdp" / and is it a good thing or a bad thing?
It's known as zddp here -Zinc Dialkyl Dithio Phosphate. A motor oil additive.
It helps to reduce metal-on-metal wear...
This resolution thread may not be an issue for Mike anymore....
http://advrider.com/forums/showthrea...=838185&page=4
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Old 11-10-2012, 05:39 AM   #25
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Well the good news is, I don't have to worry about the noise from the right hand valve gear...



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Old 11-10-2012, 05:53 AM   #26
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Holy shit, what happened? Are you okay?
Quote:
Originally Posted by MikeO View Post
Well the good news is, I don't have to worry about the noise from the right hand valve gear...



Mike
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Old 11-10-2012, 06:34 AM   #27
Mike Ryder
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So was the ticking a bomb then?
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Old 11-10-2012, 07:25 AM   #28
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So much for the answer

I was really looking forward to learning from this one. Here comes a new thread.
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Old 11-10-2012, 10:58 AM   #29
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I was really looking forward to learning from this one. Here comes a new thread.
UNREAL!!!
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Old 11-10-2012, 11:03 AM   #30
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?
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