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Join Date: Nov 2007
Location: Chandler, Arizona
I agree that the tab is not necessary, but it is welded to the oil line, and I still feel that bending it might damage the oil line. If you do bend it when you remove the tensioner, I would then go ahead and cut off the tab, as you now have plenty of room to do it. It will be a lot neater and cleaner (yes, I'm very picky about such things).
If the "Grambo trick" made no difference at all, that makes me wonder if it is the cam chain tensioners. I did that trick several times, I also turned the screw counterclockwise just a bit, both stopped the noise temporarily, but it came right back. In order to work properly, the tensioners have to be designed so that once they advance, they cannot back out. But apparently they do, and fairly quickly. The "coffee grinder noise" only happens when the bike is in gear, as you are releasing the clutch. It will not happen with the bike in neutral, idling on the centerstand. I have noticed that mine only makes that noise when the engine is cold, after it warms up, it goes away. So since I always warm up my engine until the needle on the temp gauge reaches the second mark from the left before riding it, I almost never have a problem with that issue. The coffee grinder thing is almost always accompanied by a jerking and lurching as you release the clutch.
If your bike is making a rattling noise while on the centerstand, right after start up, while idling in neutral, and the noise goes away, or almost goes away after the engine warms up, I can't think of anything else it might be but the cam chain tensioners. If the noise changes or goes away after the engine gets warm, it is definitely an abnormal noise, there is nothing in the Vulcan engine that should do that. It should sound the same, whether warm or cold. Oh, there is one exception, but I doubt that is it. The VN750 engine uses hydraulic lifters, and if you let it set for a few days, it can make a slight rattle as the lifters fill up with oil, but that goes away after about 2-3 seconds. Jerry.
I am a motorcyclist, NOT a biker.
1997 Vulcan 750, purchased about a week ago
2006 Sportster 1200 Low
2013 Royal Enfield Bullet 500, converted to carb
2001 Yamaha XT225, heavily modified
2004 Honda Rebel 250
1979 Vespa P200E
2002 Vulcan 750 parts bike
1994 Yamaha XT225 parts bike