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Snapped speedo cable
Posted: Thu Apr 16, 2009 10:18 pm
by mogatron
Hi team, was driving home the other day and heard a knock and speedo died. the speedo cable has snapped at the gearbox end. any idea what might of caused it?
cheers Ben
Posted: Thu Apr 16, 2009 10:25 pm
by linearaudio
Old age?? These things happen, often an early warning sign is a wobbly needle! New cable is cheap enough, put a smear of grease on it first to show it you care!
Posted: Thu Apr 16, 2009 10:38 pm
by mogatron
IT WAS ONLY ABOUT 4 MONTHS OLD. CHANGED IT COS HAD A NIDDLE WOBBLE. IS THERE ANYTHING IN GEAR BOX THAT CAN GO WRONG?
Posted: Thu Apr 16, 2009 10:49 pm
by bmcecosse
The outer cable sheath may be worn/kinked and causing the problem. Or did you fit a complete new cable last time ?
Posted: Thu Apr 16, 2009 11:24 pm
by mogatron
a fitted a new cable and sheath with a thin smear of grease last time. i tried putting the old one back on this afternoon and that snapped strait away.
Posted: Thu Apr 16, 2009 11:58 pm
by PSL184
Sounds like the drive gear has siezed in the gearbox...
Posted: Fri Apr 17, 2009 12:15 am
by bmcecosse
In which case - the gear would not be turning at all, and would therefore put no strain on the cable. The problem must lie in the speedo - which must be seized up solid. Try it with a (reverse running) electric drill - although I would gently try by hand with a small screwdriver first!
Posted: Fri Apr 17, 2009 12:34 am
by PSL184
Well I thought that first but the speedo head drive is so weak that the cable spinning would sheer the gears. Agree, somethings locking up / binding / siezed but I guess both ends need looking at.....
Posted: Fri Apr 17, 2009 9:46 am
by mogatron
ok, will try the speedo. how do you get it out of the dash?
Posted: Fri Apr 17, 2009 10:09 am
by mike.perry
Theoretically you poke a philips screwdriver through the hole in the side of the gloveboxes, slacken the screws and wiggle the speedo head out.
Practically you remove the gloveboxes so that you can find the screws then slacken them and give the speedo a shove from behind.
Posted: Fri Apr 17, 2009 10:10 am
by bmcecosse
Two little holes - one each side in the glovebox liners - cross head scewdriver in through the holes and loosen (don't undo!) the fixing screws holding the speedo - then pull the speedo forward. Try pulling anyway - most speedos will have been out at least once by now and the screws may be loose enough. How were you replacing the speedo cable if you didn't take the speedo out earlier ??
Posted: Fri Apr 17, 2009 10:51 am
by mogatron
i just took one of the liners out. if speedos broken are they expensive to replace? its a gold ish one from a 64 saloon if that helps
Posted: Fri Apr 17, 2009 12:25 pm
by linearaudio
Ignore- computer running unbeleivably slow!!

Posted: Fri Apr 17, 2009 2:17 pm
by bmcecosse
Secondhand speedos are cheap! Hardly worth repairing an old one.
Posted: Fri Apr 17, 2009 7:11 pm
by linearaudio
bmcecosse wrote:Secondhand speedos are cheap! Hardly worth repairing an old one.
Depends where you are, and how much you want to keep the gold face. I chose to repair mine as I am skint, and don't like throwing anything away!
It was exceedingly easy to strip, clean, and re-grease.
There is a website/pdf document which explains clearly how to do it, very informative!
www.dur.ac.uk/p.d.kuhlmann/speedo.pdf
Posted: Fri Apr 17, 2009 11:00 pm
by bmcecosse
Oh yes - if you can DIY it, always a good idea. But to 'pay' to have one repaired is going to COST!
Posted: Sat Apr 18, 2009 5:47 am
by charlie_morris_minor
i used speedycables to recalibrate my speedo a few years ago
http://www.speedycables.co.uk/
they charge from 55 + Vat it obviously depends how / what the damage is to your speedo what the final bill will be. So as bmce says cheaper to do it your self if you can.
Posted: Sat Apr 18, 2009 10:26 am
by bmcecosse
There's a Gold face one on ebay - £5 when I spotted it yesterday! I didn't save the link, so you can do your own searching!
Posted: Mon Apr 20, 2009 12:36 pm
by mogatron
right i've taken speedo out and it was abit seized. given it a bit of wd40 and a spin with a drill. it does move now but still stiff. should it be alittle stiff any way? also if cann't get it moving sweetly does that mean its dead or is there a way of fixing it easly?
Posted: Mon Apr 20, 2009 6:15 pm
by MarkyB
There shouldn't be any noticeable stiffness.
If you put a matchstick or similar can you turn it? That's how loose it should be.
You could try something with more lubricating properties than WD40, sewing machine oil or similar.
Make a note of the TPM figure and keep your eyes open for another one at a rally or ask here because it sounds like yours is toast.