Speedo not working.

URGENT ASSISTANCE REQUIRED!

Moderator: Moderators

Post Reply
User avatar
RICHARD MANSFIELD2
Project Petrol Head!
Project Petrol Head!
Posts: 547
Joined: Mon May 06, 2013 9:02 am
Model: 1.7
Location: Elmstead Market Essex

Speedo not working.

Post by RICHARD MANSFIELD2 » Wed Feb 19, 2020 3:05 pm

Hi,

I know there are similar threads. I have been through them all. I have started this as a fresh topic due to the fact the previous threads are getting on a bit and someone else since then may have had the same problem and therefor have fresh information to offer that was not posted on the older threads.

Usual thing, driving along speedo stops. Done a gauge check that's okay. Replaced the speedo sensor on gear box. checked fuses (not that any are directly related but just another check). Yes the speedo still does not work.

Anybody able to assist.

Regards,
Richard.
0 x

User avatar
red
Site Administrator
Site Administrator
Posts: 11226
Joined: Wed Oct 03, 2007 4:31 pm
Model: Other
Location: Cambridgeshire
Contact:

Speedo not working.

Post by red » Thu Feb 20, 2020 1:11 pm

When it stops, does it drop to 0 or get stuck where it is?
0 x
FRP#0201 (2000) 2009-2011
Melina Blue (1999) 2006-2009
Moondust Silver (2000) 2006

User avatar
tuonokid
Project Elder
Project Elder
Posts: 3754
Joined: Fri Nov 23, 2012 8:41 pm
Model: 1.7
Location: Huddersfield

Speedo not working.

Post by tuonokid » Thu Feb 20, 2020 2:16 pm

Hi Richard
I could be completely wrong here but I seem to remember someone writing about faulty wires in the plug to the speed sensor.... worth a check?
Barry
0 x
2001 ColOrado red Puma 1.7, work in progress.
Westfield SEIW 1800 Zetec.
Building Westfield SEI 2.0 Zetec Blacktop on TBs.
Fiesta Style 1.25
Aprilia Tuono Factory.
1975 Yamaha TY80
Now working on my sons Anglia 105e

My Project Link - http://www.projectpuma.com/viewtopic.php?f=64&t=23509" onclick="window.open(this.href);return false;

User avatar
RICHARD MANSFIELD2
Project Petrol Head!
Project Petrol Head!
Posts: 547
Joined: Mon May 06, 2013 9:02 am
Model: 1.7
Location: Elmstead Market Essex

Speedo not working.

Post by RICHARD MANSFIELD2 » Thu Feb 20, 2020 3:07 pm

Hi
Thanks for your replies.
The speedo drops to zero. The new sensor I got was not a genuine one . I have sourced a used original to try. If that does not work I think it must be a wiring issue.
I will keep plugging away

Regards,
Rchard
0 x

Stevecvo
Adolescent
Adolescent
Posts: 118
Joined: Sat Oct 31, 2009 5:49 pm
Model: 1.4

Speedo not working.

Post by Stevecvo » Fri Feb 21, 2020 2:47 pm

Failing that it could be that the gear which drives the speed sensor has stripped and needs to be replaced. Try spinning the end of the cable in the speed sensor with an electric drill while it is connected to the harness. If the speedo works this indicates that the sensor is OK and there is a problem with the drive from the gearbox.
0 x

User avatar
RICHARD MANSFIELD2
Project Petrol Head!
Project Petrol Head!
Posts: 547
Joined: Mon May 06, 2013 9:02 am
Model: 1.7
Location: Elmstead Market Essex

Speedo not working.

Post by RICHARD MANSFIELD2 » Sun Feb 23, 2020 12:23 pm

Hi.
Thanks for your interest and replies. All three sensors I have do appear to have the gears intact as when I spin them by hand I can feel the resistance or the gear inside. I think it is time to call in the services of an auto electrician.

Regards
Richard.
0 x

User avatar
RICHARD MANSFIELD2
Project Petrol Head!
Project Petrol Head!
Posts: 547
Joined: Mon May 06, 2013 9:02 am
Model: 1.7
Location: Elmstead Market Essex

Speedo not working.

Post by RICHARD MANSFIELD2 » Tue Feb 25, 2020 2:52 pm

Hi.
I have done the test with the drill on the sensor and the speedo works fine. so it has got to be the transaxle speedo drive.
Regards.
0 x

User avatar
red
Site Administrator
Site Administrator
Posts: 11226
Joined: Wed Oct 03, 2007 4:31 pm
Model: Other
Location: Cambridgeshire
Contact:

Speedo not working.

Post by red » Tue Feb 25, 2020 3:29 pm

One step forwards!
0 x
FRP#0201 (2000) 2009-2011
Melina Blue (1999) 2006-2009
Moondust Silver (2000) 2006

User avatar
RICHARD MANSFIELD2
Project Petrol Head!
Project Petrol Head!
Posts: 547
Joined: Mon May 06, 2013 9:02 am
Model: 1.7
Location: Elmstead Market Essex

Speedo not working.

Post by RICHARD MANSFIELD2 » Thu Feb 27, 2020 11:20 am

Hi again.
I have sourced a new speedo drive for the transaxle. It is the part that can be replaced externally so that is the first option to try. Now, the pin I need to remove from the casing is steel and the casing is aluminum, so I suspect a bit of corrosion will make it stubborn to remove. I have been applying WD40. Has anybody tried this before and can offer any advice before I start. I am always happy to hear other peoples experiences.

Richard
0 x

CherryVimto
Guru!
Guru!
Posts: 2044
Joined: Sun Jul 28, 2013 12:21 pm
Model: Other
Location: Hampshire

Speedo not working.

Post by CherryVimto » Thu Feb 27, 2020 10:34 pm

Richard.... are you potentially talking about a roll pin?

If so, I tried removing one and despite being someone who is VERY persistent and does not give up easily, I didn't succeed.
From what I can remember there didn't seem to be a hole the opposite side which can be used to tap the pin out... unless I missed something obvious! But I will say the gearbox was actually fitted at the time.

Looking at this photo, maybe there is a way to knock the pin out from inside....?

Image

If you are going to try and pull it out all I can say is good luck! :?
0 x

User avatar
RICHARD MANSFIELD2
Project Petrol Head!
Project Petrol Head!
Posts: 547
Joined: Mon May 06, 2013 9:02 am
Model: 1.7
Location: Elmstead Market Essex

Speedo not working.

Post by RICHARD MANSFIELD2 » Sat Feb 29, 2020 11:55 am

Hi
Thanks for that.
Richard
0 x

User avatar
Brian'
Project Petrol Head!
Project Petrol Head!
Posts: 690
Joined: Tue May 07, 2013 6:24 pm
Model: Turbo
Location: Naaldwijk, The Netherlands

Speedo not working.

Post by Brian' » Sat Feb 29, 2020 4:14 pm

I have done this procedure as well. Needed to drill out the roll pin eventually.. Good luck though! :grin:
0 x

Post Reply

Return to “HELP ME!”