Speedy speedo repair what’s the usual damage!

[Classic Chim]

My speedo which is the last type fitted such as used on the Cerbera and on my 2000 model Chimaera is erratic. Could be earth behind dash, no probs,,, but if it’s not and it’s bound not to be what’s the usual cost to have one serviced/ repaired. I’m pretty sure it’s the speedo rather than the sensor.
It’s going to take like 2 months to repair too I’d imagine. Is it only speedy cables or whatever there called deep down in darkest Wales or is there anyone else who can do it.

What sort of cost is involved.
Thanks in advance

[TV8]

Hi Al, I have a spare somewhere you can borrow if you want whilst it is repaired?

[Steve_D]

A much earlier model but mine was £128. Took many months.

Steve

[ianwayne]

There's a couple of second-hand ones on the bay of E. £185 + £150 plus postage! A magnolia face and a mint green one, both with analogue odometers.

There's also a black faced early one starting at £10 (along with all the other gauges) but your car is a later car I believe with the silver bezel dials.

[Classic Chim]

Steve_D said:

A much earlier model but mine was £128. Took many months.

Steve

How can a company permanently have a back log of work!
Train some bloody staff!

That’s not good but still fairly reasonable in price.

Thanks for the heads up on other clocks but I want to keep it original and yes mine has the silver bezels.

[Classic Chim]

TV8 said:

Hi Al, I have a spare somewhere you can borrow if you want whilst it is repaired?

That’s a really kind offer, thanks Graham. I’ve used the Rev counter as my speedo and I’ve always done it in the past for some reason on other cars so I’ve been slow to get this sorted.

I’m a bit superstitious and once read if you leave your Tvr with one known fault that you can live with the car will happily run like clockwork

By replacing/ repairing the car I’ve concluded this is a childish myth
And I should have had it repaired ages ago.

Thanks guys

[blaze_away]

Hi Alun I also have one you can borrow.

[Classic Chim]

blaze_away said:

Hi Alun I also have one you can borrow.

Thanks Frank.
I might just put a dummy one in there, I’m sure I have an alarm clock the same size somewhere

Since Mbe my car doesn’t use the speed sensor or black box so it will have an easy life when repaired.
Digital odemeter etc so I want to keep it correct to mileage unless someone knows how to clock them then I’d look into a replacement.

[v8s4me]

Try www.jdo1.com . If the instrument is listed as one of the types they repair then see what they charge. Others on the Forum have had good service from them. If you contact them about an instrument which is of a type not listed the response will be "read the FAQ".

[FlipFlopGriff]

You can buy the bezels separately (check gauge diameter) so if you get a black one you can change the bezel for a chrome version - maybe cheaper?
FFG

[Englishman]

Was £116 to repair the rev counter on my Cerb. Took between 2 and 3 months to repair at Speedy Cables. I got quite used to not having a rev counter but not sure I'd drive a car much without a speedo.

[SILICONEKID 345HP 12.03]

Whey are they called speede cables .Where is the main earth ?.I would check the voltage.

[ChimpOnGas]

We used Speedy Cables quite a bit when I was in the restoration game back in the early 1990's, we renamed them Sleepy Cables because even back then they would take months and months to do anything

It's amazing here we are now in 2018 and they're still working at the same pace 25 years later

Saying that, they're still in business so they must have been doing something right for all those years, they were always super slow but I have to say what we got back always spot on too.

Apparently these people offer repairs and work at a faster pace so could be worth a call?

https://www.etbinstruments.com/

Saying that, Alun's issue sounds like it could be worth him checking his speed sensor and its air gap adjustment before conclusively condemning the speedo itself.

Didn't you have your diff out a while back Alun? Could it be the speed sensor gap needs closing up a fraction, perhaps it's adjustment has slipped? Worth checking mate

[Classic Chim]

It was doing it a little before the diff change but I will check gap anyway.
Team High on the job so unlikely to have come loose
Thanks for the help chaps.

[ChimpOnGas]

Classic Chim said:

It was doing it a little before the diff change but I will check gap anyway.
Team High on the job so unlikely to have come loose
Thanks for the help chaps.

Hmmm maybe not the pickup then mate, still worth a gander though.

Sleazy Cables will certainly do a good job but you'll certainly grow a beard waiting, have you considered getting someone like Speedhut gauges in the USA to put a GPS board and stepper motor inside your current unit?

I think this is what I'll do when my current original Caerbont speedo eventually fails, in theory this approach solves many issues in a stroke and shouldn't be horribly more expensive than Snoozy Cables doing their refurb thing.

[SILICONEKID 345HP 12.03]

My Speedo reads very accurate up to about 40mph then it goes all to cop .

It's 15 mph out at 80mph ,could the 235/45/17 tyres cause the speedometer to be out this much ?

I've have up on the rev counter ,it bounces up and down .

Edited by SILICONEKID 345HP 12.03 on Saturday 19th May 20:15

[ChimpOnGas]

SILICONEKID 345HP 12.03 said:

I gave up on the rev counter, it bounces up and down.

With the Canems system, and very early on, there was an update that solved this bouncing tacho which works perfectly, I know you moved on from MegaSquirt, but surely your new Emerald system corrects the bounce?

For the speedo, I would be tempted to get your current unit converted to GPS, this is becoming increasingly popular in the classic car world as it delivers a number of worthwhile advantages:

• Retains your original speedo body, face & needle... so is a perfect match for the rest of the car's gauges

• Does away with the diff mounted sensor/pulse generator

• 100% accurate irrespective of tyre size

• Uses much more modern and reliable electronic internals

For older cars with cable speedos a kit is offered where the GPG signal controls the speed of a small electric motor which in turn drives a small cable to the original mechanical speedo head. On a more modern speedo like ours which works from a pulse you need someone like Speed Hut gauges in the States to fit one of their GPS speedo units inside your current speedo behind the original face and driving the original needle, the odometer and trip will become a digital display so some cutting of a suitable sized aperture would be required.

The simpler and far cheaper solution would be to replace the original diff mounted sensor/pulse generator with a GPS pulse generator.

https://www.bridgwater-electronics.co.uk/gps-road-...

https://www.carbuildersolutions.com/de/gps-speedo-...

http://www.logena.com/customer_data/upload/editor/...

While easier and cheaper a GPS pulse generator just drives your original speedo internals rather than completely updating them, which would be the preferred option in my opinion.