ninjette.org - View Single Post - Metal Shavings in Oil, Bad Cam Chain Tensioner?

manorat · August 5th, 2010, 08:58 PM

So, I've written about this in another thread, but I think i've gotten to a new point in this problem that the subject line needs to change. So here it goes. My '07 250 w/ 7200 miles just got put on the road 2 days ago. After taking it for a ride I noticed an occasional grinding sound. The kind of sound that makes you shut the engine off immediately (out of fear). As suggested in my last thread I checked to see the condition of the oil to see if there was any signs of debris in the engine case. Sure enough there were TONS of particles and shavings, mostly very very fine. I did however find just one tiny semi-circular shaving (idk if that means anything to anyone). The cam chain tensioner was suggested as a possible problem. I pulled it just now, and everything looks to be intact. How exactly do you know if the tensioner is shot, looks to me like nothing could go wrong? What gets replaced? Is it the whole assembly? Has anyone else out there had metal in their oil? What did it turn out to be?

Thanks,

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August 5th, 2010, 08:58 PM	#1
manorat ninjette.org member Name: Jeremy Location: New York and Rhode Island Join Date: Jul 2010 Motorcycle(s): 2007 Ninja 250 Posts: 15	Metal Shavings in Oil, Bad Cam Chain Tensioner? So, I've written about this in another thread, but I think i've gotten to a new point in this problem that the subject line needs to change. So here it goes. My '07 250 w/ 7200 miles just got put on the road 2 days ago. After taking it for a ride I noticed an occasional grinding sound. The kind of sound that makes you shut the engine off immediately (out of fear). As suggested in my last thread I checked to see the condition of the oil to see if there was any signs of debris in the engine case. Sure enough there were TONS of particles and shavings, mostly very very fine. I did however find just one tiny semi-circular shaving (idk if that means anything to anyone). The cam chain tensioner was suggested as a possible problem. I pulled it just now, and everything looks to be intact. How exactly do you know if the tensioner is shot, looks to me like nothing could go wrong? What gets replaced? Is it the whole assembly? Has anyone else out there had metal in their oil? What did it turn out to be? Thanks, Uploaded with ImageShack.us