Peat,
I'm not positive about the 505, but in most cable
driven speedo/odos, the odometer is directly driven
via the cable, so there is a direct link between the
tranny output and the odometer. Thus, variations in
the accuracy of the speedometer does not necessarily
equate to inaccuracy in the odometer. I would measure
the odometer against the milemarkers and simply
calculate the error. As long as the tire size doesnt
change and the cable doesnt break, that error shouldnt
change, and can be integrated into milage
calculations. And the error in the odo will be
completely independent of the speedo error, which can,
and will, change over time as the spring looses its
tension, since there is no direct link between the
cable and the needle.
Regards,
Ben Pender
- pyoung <bf135@scn.org> wrote:
> Someone on the list mentioned the inherent
> unreliability of the 505
> odometers and speedo cables. I can bear witness to
> this. When I first
> got my XN6 I was getting 26-27 mpg highway and 22
> around town. The
> speedometer would swing slightly at low speed and
> smooth out at highway
> speed. Now I'm getting (according to the odometer)
> 22-24 mpg highway
> and 16-18 around town. The speedo swings much more
> at low speed but
> also varies at highway speed.
> I know what the major cause is (lower speedo cable
> inner sheath melt
> down from running to close to the exhaust) but
> haven't gotten around to
> fixing it.
> I've checked the odometer against milepost markers
> on the highway and
> it is wrong. I'm putting more miles on the car than
> is being registered
> by the odometer.
> As for the Twagon, it used to have a clicking sound
> coming from the
> speedo and you could see the needle jump with each
> click. A little
> duralube in the back of the speedo cured the click
> and the jump but
> I've never checked it against the mileposts since I
> seem to be getting
> what the 'book of words' says I should be getting.
>
> In this case maybe it is the messenger that should
> be
> killed.....(fixed).
>
>
>
> Peat
> 85 505 STI XN6
> 86 gas Twagon
>
> On Apr 7, 2005, at 7:07 PM, Mike Aube wrote:
>
> >
> > A bad O2 sensor will make the computer go to
> "limp" mode and give you
> > maximum rich mixture. A properly adjusted system
> with a good O2 sensor
> > will
> > be fairly economical, (for most drivers) I always
> get worst mileage
> > with an
> > XN6 than I do with the turbo or V6
> > ----- Original Message -----
> > From: "libstudent44" <mrwood@u.washington.edu>
> > To: <peugeot-L@yahoogroups.com>
> > Sent: Thursday, April 07, 2005 9:18 PM
> > Subject: [Peugeot-L] O2 sensor function: What if
> its clogged up?
> >
> >
> >>
> >>
> >> My old sensor is white and burned up on the end.
> It was run with a
> >> massive blowby problem and for a short time with
> a blown head gasket.
> >> I was wondering what efffect this may have on
> engine operation of a
> >> 505 gas wagon... Does an XN6 that runs ok anyway
> and gets bad mileage
> >> do better with a new one? [good used engine
> installed now]
> >>
> >> mikey
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
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Received on Thu Apr 7 21:37:59 2005
