Quote:
Originally Posted by v2rocket_aka944
thinking back the reason i would set the balance belt 0.5mm off the idler is that, if you get the idler too close to the lower b-shaft gear the belt can jam and shred teeth. that happened to me in maybe 2007? but it all seemed to fit and work better with the 0.5mm set above the idler.
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I just decided to put it together with the 0.5mm clearance below and accept 2mm above.
Reason is I think the lower balance shaft has more chance of skipping a tooth than the upper, and that 0.5mm clearance is likely to prevent that.
Also, the upper belt cover is easy to remove with the rest of the engine together, and maybe after running it a bit the tension will change and I can readjust it. We'll see how it goes.