[Healeys] Drum Balancing

[Bob Spidell]

I pretty much assume we're all 'old farts' on this list.

bs


On 2/20/2018 8:46 AM, Keith Pennell wrote:
> Bob that is exactly what I did to balance several pairs.  Does that 
> make me an "old fart"? :):)
>
>
> -----Original Message-----
> From: Bob Spidell <bspidell at comcast.net>
> To: healeys <healeys at autox.team.net>
> Sent: Tue, Feb 20, 2018 11:17 am
> Subject: Re: [Healeys] Drum Balancing
>
> For my BJ8, we had an 'old fart' at an engine builder's shop balance the
> drums; he welded quarter-inch iron rod lengthwise between the fins (no
> metal removed).
>
> I don't recall if we had the BN2's drums balanced, but there is a large,
> thick rib near the outer edge that had chunks cleanly machined off; it
> appears this would have been done at the factory.
>
> Bob
>
>
> On 2/20/2018 1:14 AM, A H List wrote:
> > Drums are statically out of balance, i.e. there is more metal on one
> > side due to casting/machining tolerances. To correct this only
> > requires basic tools like a file and some patience, or take them to an
> > engine balancer. I prefer to file a small amount over a large area so
> > they don't look any different to originally whereas jobbing shops may
> > use a drill to remove metal and it won't look original if that
> > matters.
> >
> > Andy.
> >
> >
> > On 2/20/18, Keith Pennell <llennep at verizon.net 
> <mailto:llennep at verizon.net>> wrote:
> >> I did not understand that the drums were shaved, but the tires. Shaving
> >> drums merely makes it round around some point and nt necessarily 
> the center
> >> of mass.
> >>
>

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