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Posted by Joseph Meehan on May 30, 2006, 7:49 am
bill wrote:
> I have an annoying vibration in a Lawnboy mower that that can be felt
> in the handle.
>
> I have 2 lawnboy mowers. The older one (D engine) runs perfectly
> smooth. The newer one (F engine) has the vibration. If I run either
> mower without a blade, the vibration is slight and equal. Neither
> mower seems to have any runout when I look at the shaft while it is
> running bladeless or as I pull the starter and look at the shaft (not
> running). If I put the same blade, flange, washer and nut on each,
> the D mower runs perfectly smooth and the F mower vibrates.
>
> So, it is not the blade, flange, washer or nut. It doesn't have any
> obvious shaft runout and the blade runs even on both sides as it is
> turned (one side is not higher or lower than the other). It doesn't
> vibrate any more than the good one when the blade is off. What could
> it be?
> Please take the spam-bustin 7 out of my address if responding, so my
> e-mail address is actually calbert "at sign" and then mchsi.com
>
> Thanks,
>
> Bill
The blade would make a very small amount of runout very noticeable.
That would be my guess.
--
Joseph Meehan
Dia duit
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