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Speedometer cable

Posted: Mon Aug 21, 2006 10:11 pm
by pim123
Hi, I have to check my fuel gauge and my ignition light. If I try to pull out my speedometer, it would not come out for more then an inch or so. Not enough space to check my problems. Should I pull it harder to give the cable more slack ? I am afraid to brake something.

Posted: Mon Aug 21, 2006 10:31 pm
by bmcecosse
It's tricky - you may have to take the gloveboxes out (maybe one will do) to get your hand in there - and unscrew the speedo drive connection. Don't just pull - there is not that much slack.

Posted: Mon Aug 21, 2006 10:35 pm
by pim123
You mean leave the cable where it is and just get the speedo out. Thats an answer to my problem, but is it normal to have only a little slack on the cable ?

Posted: Mon Aug 21, 2006 10:39 pm
by bigginger
Perfectly normal. The cable can't be too loose, as any bends when it goes back in would mean it could fail.

Posted: Mon Aug 21, 2006 10:41 pm
by pim123
Ok, tnx to you both. I was hoping to pull out the speedometer and work on my problems with lots of room...

Posted: Tue Aug 22, 2006 12:54 am
by bigginger
You can generally undo the cable, honest. It'll still be restricted by wires, but they unplug too if you need more room :D

Posted: Tue Aug 22, 2006 5:41 am
by Kevin
Thin fingers or small hands can be useful but it is fiddly.

Posted: Tue Aug 22, 2006 7:37 am
by markattard
Best if you get the glove compartment out of the way, you must be extra carefull if these are old, the cardboard just rips off....good luck

Posted: Tue Aug 22, 2006 7:12 pm
by pim123
Well, that's a lot more work than I had imagined, but then again I learn a lot about my Minor while taking it partly apart :wink:

Posted: Wed Aug 23, 2006 11:02 am
by Axolotl
If you can get a second person to help, you should be able to "feed" the speedometer cable through from the engine side of the bulkhead as you ease the speedo out of the dashboard. (Don't just pull the speedo).

There is enough slack on mine to get the speedo all the way out (with the back of the speedo about 3" clear of the dash), then you can get at the speedo nut and undo it easily.

Putting it back is the opposite. Get your third hand to pull gently on the cable from the engine side as you fit the speedo back. That way, you can avoid kinks in the cable.

The wires have a lot more slack once the speedo cable is disconnected.

Posted: Wed Aug 23, 2006 12:10 pm
by pim123
Tnx for the tip Axolotl !
Does the cable com through the bulkhead in the engine room or under the car near the gearbox ?

Posted: Wed Aug 23, 2006 12:34 pm
by ColinP
pim wrote :-
Does the cable com through the bulkhead in the engine room or under the car near the gearbox ?
The cable goes through the engine bulkhead at the same height as the Battery/fuel pump. (well it does on my 1098cc !).

Should be quite obvious as it is a thick (diameter) cable, with large diameter curve.

I don't know if the Left Hand Drive versions have the same layout - in my car it is on the left of the car.

Colin

Posted: Wed Aug 23, 2006 1:01 pm
by pim123
I will check it out after work !!

Posted: Wed Aug 23, 2006 1:29 pm
by Axolotl
That's interesting. On my 1971 Traveller, it comes out of the bulkhead on a level with the speedo, on the left hand side (as viewed from the back looking forwards) of the scuttle over the battery.

It then curves down in a big arc to go under the car, still on the same side, behind the carburettor and above the exhaust under the body to the fitting on the gearbox.

Maybe that's why I can easily feed mine through the bulkehead when I take the speedo out?

Posted: Wed Aug 23, 2006 2:07 pm
by pim123
Aha...there's a lot more to it then we first thought !! It's the start of the Speedo-cable mystery serie of comments ! 8)

Posted: Wed Aug 23, 2006 3:54 pm
by pim123
In my car it is the same posisioned as in Axolotl's car.
I've pushed (no force needed at all) it from the engine bay and the speedo fell out !!! Checked why the ignitionlight didn't work...it was out of the socket of the speedo, pushed it back in...first problem solved. Just the fuel gauge problem to solve now.

Posted: Wed Aug 23, 2006 4:13 pm
by simmitc
SAFETY TIP

Before removing the speedo for the first time, disconnect the battery. Some of the components in the dash can have live terminals exposed - eg ignition switch, headlight switch, not to mention modifications by previous owners! Once you know what's what then you can relax a bit and next time leave the battery connected, but you can easily pull bits around and/or knock a switch and earth something that is better left alone.

Posted: Wed Aug 23, 2006 4:30 pm
by Axolotl
Good point. I always disconnect the battery when juggling wiring unless I need the power on to test something.

Also, take your wrist watch off before ging anywhere near wiring or the engine bay. I have seen a horrific burn on someone who shorted their watch strap across live and earth. Melted the strap into their wrist. Ouch!

Posted: Wed Aug 23, 2006 4:42 pm
by Packedup
Axolotl wrote:Also, take your wrist watch off before ging anywhere near wiring or the engine bay. I have seen a horrific burn on someone who shorted their watch strap across live and earth. Melted the strap into their wrist. Ouch!
I've done something similar in the past. Anyone who's met me can probably guess my method of inficting painful burns accidentally when playing with wiring...

Ypu'd think I'd learn, but oh no, still do it, though now have an almost relfex reaction to the sound of errant sparking and usually manage to pull my arm away before it gets too hot.

Posted: Wed Aug 23, 2006 4:49 pm
by pim123
TNX Simtic !! good tip, luckely with me all seems to be simple and neatly installed...