Cold and RPM/Speed

From: Agent 86 (anthonyr(at)aqua.civag.unimelb.EDU.AU)
Date: Wed Nov 05 1997 - 21:53:45 CST


>Still have not got my speedo recalibrated since installing the OD, so it's
>reading quite a bit fast, and when it shows more than 60 mph, it starts the
>wobble - even though the cable and housing are brand new. So, it's kind of
>a guestimate that there is a difference at the speeds I'm normally
>travelling at.
>
Jay,

I'm not sure about others but since I have a new speedo and cable I'll tell
you about mine. The needle sways/wobbles a small amount and fairly slowly
above about 55mph. What I put this down to is the way the odometer counts.
On my speedo (series II) the fractions of a mile only turn in discrete
steps, and it takes about three steps to read 0.1 of a mile. On an open
piece of road it is possible to watch the needle sway as the odometer ticks
on. So I put it down to that.

For the record, at 60mph, were doing 0.1 miles every 6 seconds.

If the counter moves 3 (or 4) times per each 0.1 miles, the needle sways
once every 1.5 to 2 seconds.

That's what I reckon.

Anthony, Series II

For what it's worth a good rebuild job, where they got me new number wheels
for the odometer and a lens for the indicator warning light, cost me $75
which is about $US50.



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