2004 R1150RTP - noise on deceleration, what is it?
I'm soliciting your help to diagnose an engine noise on my 2004 R1150RTP with 110k. The engine runs great and smooth, but when using engine braking (decelerating with clutch engaged) the engine makes way too much rattling.
I thought it would be the cam chain tensioner, but reading more on the "is this the dreaded death rattle" thread, it doesn't sound like that's it.
I know I should just run it to the dealer for diagnosis, but my nearest one isn't very "near". And I'm wondering if I'm going to damage it by driving it there?
Your input is appreciated.
Update- transmission (not engine)
Thanks for all your input.
The noise seems to be the transmission, and might be the clutch plate as suggested. I wouldn't consider it "normal" sound though. (I have a 1994 R1100RS, and it has never sounded like this.) The deceleration noise doesn't seem RPM related, but it was around 3500-ish when I was hearing it. I checked the throttle body shaft and valve clearances, and those seem fine.
When at idle on the centerstand, in neutral, there is some (slight) rattle noise, which goes away when the clutch is pulled in. This is in addition to the deceleration noise.
Yes, I will have to run it up to Mischler's. My other nearest BMW specific option is Boxer Rebellion, if Norm has time for any projects.
I'll be sure to update the thread again with updates.