displaying posts 1 to 21 of 21

Author Subject: Help. Speedo on going woes
eliotrw

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Location: Southwark

Registered: 18 Jul 2010

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Post #1
So I've just fit a new speedo after a starter motor change (and battery disconnection) seemed to fry my original ones

The symptoms were.
No rev counter
No speedo.
Odometer increasing at a rate of one mile per like 4 metres
No fuel gauge
No oil gauge

Water temp was still working

I have now fitted a spare set of working clocks
Oil temp seems good
Fuel gauge seems good.
Odometer seems good

Rev counter is off by 1k revs (idles at 0)
Speedo is off by 10 mph. (10 mph is now -10)

Anyideas?

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Ex- Phase 3 China GTi-6 T-Reg
Posted 8th Sep 2018 at 15:38
eliotrw

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Post #2
If it makes a difference, the second the cables go in the back of the cluster, the needles drop

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Posted 8th Sep 2018 at 16:04
Rich E Forum Admin

Location: Hertfordshire

Registered: 27 Apr 2005

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Post #3
I'm assuming this is the cluster I sent you?

It sounds like the needles have drifted. If you take the cover off the dials you can pull the needles off the spindles and reset them to where you need them to be.

Or if there's not a physical stop on the other side of the dial you can turn the needle until it stops and then put a little pressure on it and it'll rotate on the spindle. They aren't very tight on the spindles from memory.

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Rich
Posted 8th Sep 2018 at 16:09
eliotrw

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Post #4
oh so when i turn them, they arent actually turning the spindle they sit on?

I cant work out how to take them off seems like they need a lot of force..

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Posted 8th Sep 2018 at 16:15
Rich E Forum Admin

Location: Hertfordshire

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Post #5
From memory the spindles have a set range of motion so if you move the needle all the way to the end of that range you can then turn the needle on the spindle by pushing the needle further round.

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Rich
Posted 8th Sep 2018 at 16:20
eliotrw

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Post #6
So bit more info

I don't think i'm dealing with an alignment issue perse but lemme know what you think.
Here's the symptoms as it is now.

I can unplug the speedo and then try and manually move the needles, either lightly or by putting a bit of pressure on them then moving it.
And i can get them to 0 no problem like that. (as they are unplugged)
I then reassemble and plug them in (with the key removed)
And the moment they are plugged in the needles drop to -10mph and -1k respectively.
The RPM hand actually moves back a forth a few mil very fast and touches the oil gauge (which is at zero as the car is off).

At this point the key is still not in the car.

After inserting the key and turning two spaces, the Oil gauge does its sweep and seems to work fine at showing the level
The Fuel gauge raises to the correct level as well.
With the oil gauge moved. the RPM needle is no longer flicking but is basically in the same position at -1k rpm

When I start the car.

Water and oil move up slowly as they would, at idle, the RPM needle is now at 0k. If i blip the throttle, it moves up in the increment it normally would, except offset by 1k.
Speedo is obviously in the same place but as I drive around it moves as it would do except 20 mph is actually 30 and so on.

I removed the plastic cover and plugged it back in then moves the needles to the correct resting positions.

AHAH I thought, because now it was all looking good.

But when I turn the car off, I'm back to Square one, at the RPM and Speedo needles are in a minus position, as they were before.

SO.
Given that this happened after a starter motor was fitted (and at that time the battery was reconnected and disconnected,) Is there anything that could have caused this.

So far since the issue i have had
A new battery
A used working cluster

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Ex- Phase 3 China GTi-6 T-Reg
Posted 12th Sep 2018 at 17:29
miki4

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Location: Cologne

Registered: 09 Nov 2015

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Post #7
Should be an alignment issue. With ignition turned off turn the misaligned needles counterclockwise until they are where they should be while ignition is off. Turn ignition on and check they are at 0 mph and 0 revs. Start the engine and check as well.
Posted 13th Sep 2018 at 00:44
eliotrw

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Post #8
I've done that already sadly

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Posted 17th Sep 2018 at 17:09
miki4

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Post #9
Counterclockwise? Can't be that they reset again once you turn the needle on the pin which should be the case as when you turn it counterclockwise the central pin stops turning at some position but you go on turning the pointer needle further (generating an offset of the pointed at value).

This procedure takes some time to hit the right alignment. If you have trouble you could take the needles off using a fork and some tissue to prevent scratches and put them on in the right position with the engine running. The pins move very easily so it can be difficult to get the alignment right.
Posted 17th Sep 2018 at 20:56
eliotrw

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Post #10
quote:
[quote="miki4"]Counterclockwise? Can't be that they reset again once you turn the needle on the pin which should be the case as when you turn it counterclockwise the central pin stops turning at some position but you go on turning the pointer needle further (generating an offset of the pointed at value).

This procedure takes some time to hit the right alignment. If you have trouble you could take the needles off using a fork and some tissue to prevent scratches and put them on in the right position with the engine running. The pins move very easily so it can be difficult to get the alignment right.


But they wont go any further counterclockwise as they hit the oil gauge needle?

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Ex- Phase 3 China GTi-6 T-Reg
Posted 18th Sep 2018 at 10:37
miki4

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Post #11
You are right. I forgot that. I can't remember exactly how I did it the last time but you will need to take off the needle, put it on with it pointing on like 8k rpm or 120 mph and then turn it counterclockwise until it points at the right value - everything with ignition off. Turn on/off ignition and recheck.

Following scan of my 1.6 NFT dials could be of some help as I marked the resting positions of the pointer needles with a pencil.

https://imgur.com/TC1NaBG
Posted 18th Sep 2018 at 11:22
eliotrw

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Post #12
Nice scan could be useful!

I'l have another crack at it then.
Anymore tips for removing the needles?
Or is it basically Fork+force+sacrifice to peugeot gods

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Ex- Phase 3 China GTi-6 T-Reg
Posted 18th Sep 2018 at 11:32
miki4

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Post #13
Just be careful, use some gentle force and wiggle the needles a bit so you pull them right up and not tilted or else you may break the plastic of the needle. Smile
Posted 20th Sep 2018 at 11:58
eliotrw

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Post #14
Question

Do ECU's have the mileage recorded in them or just the clocks?
Does anyone know?

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Ex- Phase 3 China GTi-6 T-Reg
Posted 2nd Oct 2018 at 16:20
pug_306

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Post #15
Just the clocks buddy.

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1998 Supercharged White Rallye
1992 205 GTi6
205 Turbo 340bhp
Posted 2nd Oct 2018 at 16:43
miki4

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Post #16
Ditto Thumbs up
Posted 2nd Oct 2018 at 21:56
gnrlee Forum Admin

Location: Leeds

Registered: 20 Aug 2005

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Post #17
There's a chip that's holds that info
You can have the milage changed to suit,..
You managed to resolve your issues?

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Proud Member of the ASTOR Owners Club
Posted 4th Oct 2018 at 07:07
eliotrw

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Post #18
Not yet gonna have a crack tonight

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Ex- Phase 3 China GTi-6 T-Reg
Posted 4th Oct 2018 at 07:53
eliotrw

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Location: Southwark

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Post #19
Winner winner chicken dinner. (Trusty ol fork)

Working perfect now

Just need the mileage sorted and i have a trouble free car

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Ex- Phase 3 China GTi-6 T-Reg
Posted 4th Oct 2018 at 20:00
gnrlee Forum Admin

Location: Leeds

Registered: 20 Aug 2005

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Post #20
Thumbs up

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Proud Member of the ASTOR Owners Club
Posted 5th Oct 2018 at 22:51
miki4

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Post #21
Great! Happy you worked it out. Thumbs up

If you can't find someone to adjust the mileage in your clocks then just get someone to swap the relevant IC on the board with the one from the original. I'm pretty sure it will be a 2x4 pin SPI EEPROM where the data is stored.
Posted 8th Oct 2018 at 20:02

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