Posted by The Older Gentleman on July 21, 2010, 11:39 am
>
> It's not all that hard to remove and replace the
> ring, though the one time I did it, there were
> certainly tell-tales where it was re-crimped.
That's the point.
> Wouldn't be all that obvious to a buyer though.
Heh. Wanna bet?
>
> With the right tools and maybe a new ring, should
> be a piece of cake.
Trouble is, the rings aren't sold as separate items and they are rolled
onto the clock housing with some rather expensive tooling[1]. It really
is a bastard job to remove and replace without it showing.
There are some specialist instrument restoration companies offering the
service here in the UK now, however. Wouldn't be surprised if there are
some in the US as well.
>I'm speculating it might also be
> possible to do some kind of small incision(s) just to
> roll the leftmost odometer wheel.
Heh. On my BMW, that would change the recorded mileage from 40,000 miles
to 140,000 miles 0r 940,000 miles, dependingwhich way you flicked the
digit. ;-)
[1] I believe it's more or less the same reason that stops people making
pattern copies of original spec metal mudguards for old bikes. Those
guards with rolled edges need expensive tooling to copy.
--
BMW K1100LT Ducati 750SS Triumph Street Triple Honda CB400F
Suzuki TS250 Suzuki GN250 chateaudotmurrayatidnetdotcom
Nothing damages a machine more than an ignoramus with a manual, a
can-do attitude and a set of cheap tools
Posted by Rob Kleinschmidt on July 21, 2010, 2:48 pm
On Jul 21, 7:39 am, totallydeadmail...@yahoo.co.uk (The Older
Gentleman) wrote:
> > It's not all that hard to remove and replace the
> > ring, though the one time I did it, there were
> > certainly tell-tales where it was re-crimped.
> That's the point.
> > Wouldn't be all that obvious to a buyer though.
> Heh. Wanna bet?
The crimp is generally concealed by whatever
plastic the instrument is housed in. On a totally
exposed speedo it'd be visible. On mine, the crimp
isn't visible until you open the headlight assembly
and pull the speedo.
I've also heard that it helps to put a large hose
clamp around the ring when opening or closing
the crimp. Haven't actually tried this one.
> >I'm speculating it might also be
> > possible to do some kind of small incision(s) just to
> > roll the leftmost odometer wheel.
> Heh. On my BMW, that would change the recorded mileage from 40,000 miles
> to 140,000 miles 0r 940,000 miles, dependingwhich way you flicked the
> digit. ;-)
On a six digit odometer, you'd rotate just the highest
order wheel. On a seven digit, you'd have to rotate
two wheels. Not sure if this is doable or not, but
you obviously don't care much about wheels one through
five.
Posted by The Older Gentleman on July 21, 2010, 3:34 pm
> On Jul 21, 7:39 am, totallydeadmail...@yahoo.co.uk (The Older
> Gentleman) wrote:
> >
> The crimp is generally concealed by whatever
> plastic the instrument is housed in. On a totally
> exposed speedo it'd be visible. On mine, the crimp
> isn't visible until you open the headlight assembly
> and pull the speedo.
Er, yeah, I made this point several postings ago, actually.
>
> I've also heard that it helps to put a large hose
> clamp around the ring when opening or closing
> the crimp. Haven't actually tried this one.
Opening it isn't the problem. Closing it without leaving a mark is the
tricky bit. Speaking as one who tried it once.
>
> > >I'm speculating it might also be
> > > possible to do some kind of small incision(s) just to
> > > roll the leftmost odometer wheel.
> >
> > Heh. On my BMW, that would change the recorded mileage from 40,000 miles
> > to 140,000 miles 0r 940,000 miles, dependingwhich way you flicked the
> > digit. ;-)
>
> On a six digit odometer, you'd rotate just the highest
> order wheel. On a seven digit, you'd have to rotate
> two wheels. Not sure if this is doable or not, but
> you obviously don't care much about wheels one through
> five.
I've got an old speedometer lurking in one of my Big Boxes of Buggered
Bike Bitz.
I'll have a look when I get home, and report back. Won't be for about
three weeks, mind.
--
BMW K1100LT Ducati 750SS Triumph Street Triple Honda CB400F
Suzuki TS250 Suzuki GN250 chateaudotmurrayatidnetdotcom
Nothing damages a machine more than an ignoramus with a manual, a
can-do attitude and a set of cheap tools
Posted by Rob Kleinschmidt on July 21, 2010, 10:52 pm
On Jul 21, 11:34 am, totallydeadmail...@yahoo.co.uk (The Older
Gentleman) wrote:
> > On a six digit odometer, you'd rotate just the highest
> > order wheel. On a seven digit, you'd have to rotate
> > two wheels. Not sure if this is doable or not, but
> > you obviously don't care much about wheels one through
> > five.
> I've got an old speedometer lurking in one of my Big Boxes of Buggered
> Bike Bitz.
> I'll have a look when I get home, and report back. Won't be for about
> three weeks, mind.
http://www.mgexperience.net/article/odo-adjustment.html
Of course with everybody moving to digital,
tampering with mechanical odometers is
going to be quaint and amusing in a couple of
years.
Considering that it's supposed to be doable in
less than an hour, I'd say "clocking" definitely
involves surgery and not just driving the odometer
til it rolls over.
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> It's not all that hard to remove and replace the
> ring, though the one time I did it, there were
> certainly tell-tales where it was re-crimped.