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Old 12-22-2012, 11:41 AM   #31
terryckdbf
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Joined: Jun 2006
Location: Perry, Ga
Oddometer: 683
Quote:
Originally Posted by WeazyBuddha View Post
So I had my friend (with lots more mechanical knowledge than I) help me set the valves on my 08 GS for the 24K service. Bike had been running fine.

All valves were about halfway where they should have been, .075mm and .15mm more or less for intake and exhaust.

All other service was done at Lonestar BMW in Austin, this is my first time taking over.

Do dealers set them tight to keep the noise level down?

Does the spec I state above (.075mm/.15mm) so tight that damage might have occurred?

Notwithstanding the single value .15mm and .30mm spec, I assume there is actually a range. What is that range?

Any body else see a problem with this?

Terry
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Old 12-22-2012, 11:56 AM   #32
WeazyBuddha
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Do tell

I've got the worry beads out.

I'm actually just a glorified gopher for my friend who is "helping" i.e. doing this and what he told me is what I posted.

"we" could not get the .15mm and .30mm gauges in and by fiddling around with various gauges my friend determined that they were all at about half where they should have been.
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Old 12-22-2012, 03:42 PM   #33
JimVonBaden
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Quote:
Originally Posted by terryckdbf View Post
Any body else see a problem with this?

Terry

I try not to get into it, but running that tight risks burning a valve because the valve doesn't spend enough time seated.

Jim
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Old 12-22-2012, 07:37 PM   #34
terryckdbf
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On a positive note at least there was some clearance. Adjust them properly and ride it, throw the worry beads away.

Terry
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Old 12-22-2012, 09:57 PM   #35
WeazyBuddha
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Exactly, nothing gained from worrying.

However, I am going to go through them again as suggested by the Oilhead Valve Adjustment for Dummies (OVAD) to get them fine-tuned.

The lateral play was on the edge of spec according to my friend so I think I'm going to go ahead and adjust that too while I'm at it.

Another thing I learned from the OVAD was the tightening of the nut on the valve adjustment. It's clear to me () that I over did it but hopefully did not cause permanent damage. 8 Nm is not a lot of torque. The nut is clearly easy to replace, how about that 3mm allen bolt? I could not make heads or tails of the Max BMW fiche.

Anybody willing to help me id the PN for that allen bolt? The bike is an 08 non adventure GS.

Thanks to everybody that has been helping with this. At some point, once I get my knowledge built up a bit, I can hopefully pay it forward by helping someone else.
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