Speedo does not work

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Rob_Jennings
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Speedo does not work

Post by Rob_Jennings »

I hope that someone might be able to give me a few more things to try on this problem....

The speedo was a bit touch and go and then finally gave up all together.

I removed the cable from the gear box end and turning it by hand the needle rises so the head is fine and the cable seems OK.

So next step was to replace the pinion wheel that takes off from the back of the gear box, I removed this yesterday and as expected the nylon wheel was very worn, even flat on one side. So in went the replacement but I still get nothing.

I have a spare cable, but doubt it will make any difference, since it all works fine from that end and it does not look rounded which is the normal problem.

All I can think of is to try and refit the pinion wheel again incase it is misaligned, but that will have to wait until I can get some more oil, as I used the last I had to top the box back up after the first try.

But I'd welcome more ideas at what might be wrong? I assume the cog that drives the take off cant really wear out or become unattached form the shaft?

well I await ideas

oh and one last question.... MOT is on Wednesday, is a broken speedo a failure?

Cheers
Rob
Lizzy 1970 Morris Minor Traveller and Noah 1969 Morris Mini Traveller
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JimK
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Post by JimK »

Speedo is not part of the test, according to this page.

I don't know how authoritative it is, but my car has an MoT and the speedo hasn't been connected for at least three years.

I'm thinking of buying a Road Angel or suchlike as the speedo is not exactly accurate when it is working...
Jim - New Forest, the Wiltshire bit
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d_harris
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Post by d_harris »

I thought the speedo was part of the test.......

JimK
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Post by JimK »

I've done a bit of googling, and several pages agree that the speedo is not part of the test.

It does, however, seem that having a working speedo is a requirement of the construction and use regulations.

So, the test doesn't require it but other law does.
Jim - New Forest, the Wiltshire bit
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d_harris
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Post by d_harris »

I know my dad got done in the 80s for not having a working speedo in his mini

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Post by Packedup »

Dan_Harris wrote:I thought the speedo was part of the test.......
http://www.motuk.co.uk/manual/contents.htm

Nope.

A working speedo (on vehicles fited with one...) is part of the C&U though as pointed out, and might get you a fine if you get pulled by a very anal, very bored, very determined ociffer...
Rob_Jennings
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Post by Rob_Jennings »

Thanks, thats one question sort of answered

But more importantly any more things to check to get it working again?

Cheers
Rob
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Kevin
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Post by Kevin »

I removed the cable from the gear box end and turning it by hand the needle rises so the head is fine and the cable seems OK.
Hi Rob Im surprised that you could turn it fast enough, I would have checked using a drill on the end. The other way to check the gearbox end of things is to see if the cable is turning while driving, removing the speedo is probably easist or if you have a spare cable connect up and run it into the car and see if it turns.
Cheers

Kevin
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Rob_Jennings
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Post by Rob_Jennings »

I did have the speedo out and rolled at low'ish speed holding the cable and could feel no movement ;-( thats why I hoped the swap of the pinion wheel would fix it.

I'm running out of ideas
Rob
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Post by Axolotl »

might get you a fine if you get pulled by a very anal, very bored, very determined ociffer...
Is there another sort?
:P
Cheers, Axolotl.

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I know that you believe you understand what you think I wrote, but I am not sure you realize that what you read is not what I meant.
Rob_Jennings
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Post by Rob_Jennings »

hummm

do you think these cars really have a character, today on the way to the test centre the speedo sprang into life I wonder if it might keep working and am still mistified as to why it stops.

oh, and I'm pretty sure its not a stuck spring/needle as the mile counter stops at the same time.
Rob
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Post by JimK »

That's just odd.

Mine is as dead as a very dead thing so I'm going to try some of these ideas.
Jim - New Forest, the Wiltshire bit
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