Balancer adjustment
#1
Balancer adjustment
Thought I'd have a go at adjusting the balancer shaft as Sir trout had reminded me with a how too.
Now unfortunately I twisted my balancer shaft anticlockwise and it just keeps going , doesn't stop at all?
So I fiddled with it with the motor running and it seemed to smooth the tick-over out so tightened it back up (pinch-bolt) and left it at that.
But the question on my mind is why won't it stop turning? Has something dropped off inside or am I just cocking things up ?
Now unfortunately I twisted my balancer shaft anticlockwise and it just keeps going , doesn't stop at all?
So I fiddled with it with the motor running and it seemed to smooth the tick-over out so tightened it back up (pinch-bolt) and left it at that.
But the question on my mind is why won't it stop turning? Has something dropped off inside or am I just cocking things up ?
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When you turn your balancer shaft it isn't tightening a bolt, or threading back and forth. It's running on an eccentric, moving closer to and further from a drive (or driven) gear within the eccentric's limits. I'm not sure - so take this next with a grain of salt - but think that when everything was new the eccentric would most likely place the drive and driven gears tight enough that the shaft would move no further. Everything has most likely worn and loosened with time so the gears no longer will mesh that tightly, letting the shaft turn forever.
The best you can do is find the spot with the least vibration and set it there. At its tightest you should hear a whine when the engine's running, at its loosest you get vibration. I set mine with the engine running, by the way. There has been some discussion in the past with varying opinions as to the wisdom of that. You'll have to make up your own mind as to how you perform the adjustment.
The best you can do is find the spot with the least vibration and set it there. At its tightest you should hear a whine when the engine's running, at its loosest you get vibration. I set mine with the engine running, by the way. There has been some discussion in the past with varying opinions as to the wisdom of that. You'll have to make up your own mind as to how you perform the adjustment.
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