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#Post#: 101010--------------------------------------------------
Inaccurate Speedo
By: micsimps Date: March 10, 2016, 2:30 pm
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Now here's a thing; my speedo shows roughly half the speed I'm
actually doing... Not that I'm doing a lot of course, but a pain
when in a 30 limit with speed cameras.
Presume it's just a buggered speedo, or can there be another
reason?
#Post#: 101011--------------------------------------------------
Re: Inaccurate Speedo
By: samc88 Date: March 10, 2016, 2:31 pm
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Have you fitted bigger wheels? Or different diffs?
#Post#: 101012--------------------------------------------------
Re: Inaccurate Speedo
By: micsimps Date: March 10, 2016, 2:49 pm
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No, bog standard wheels, road tyres, diffs all original....
#Post#: 101013--------------------------------------------------
Re: Inaccurate Speedo
By: hippydave Date: March 10, 2016, 3:25 pm
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Could be worn where the speedo cable fits in to the rear of the
transfer box, a new cable normally sorts it or if not its the
drive gear that has worn which can be quite common.
#Post#: 101017--------------------------------------------------
Re: Inaccurate Speedo
By: Hissing Sid Date: March 11, 2016, 7:11 am
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Would say the speedo needs overhauling. The magnetic cup that
spins around needs to be re-magnetised.
#Post#: 101023--------------------------------------------------
Re: Inaccurate Speedo
By: micsimps Date: March 11, 2016, 1:12 pm
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I'll try a new cable and see if that sorts it.
Is the drive gear in the speedo unit or the transfer box?
Would a speedo overhaul be a relatively easy job?
#Post#: 101024--------------------------------------------------
Re: Inaccurate Speedo
By: hippydave Date: March 11, 2016, 1:18 pm
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Its in the rear of the transfer box dude, where the cable fits
in. Speedo is quite technical and can cost quite a bit t have
refurbed.
#Post#: 101026--------------------------------------------------
Re: Inaccurate Speedo
By: ashcrroft752 Date: March 11, 2016, 4:17 pm
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Speedo drive housing tight, pre load correct? I'm thinking the
drive works on friction? Not enough friction= not enough turny
action?
#Post#: 101031--------------------------------------------------
Re: Inaccurate Speedo
By: micsimps Date: March 12, 2016, 4:53 am
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I'll get in there and have a butchers soon, will report in
when/if I suss it out. Thanks for the advice guys..
#Post#: 101032--------------------------------------------------
Re: Inaccurate Speedo
By: Snailer Date: March 12, 2016, 7:13 am
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i use a GPS speedo and work out what speeds are what. Mine is
about 8-15mph out.
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