Speedometer calibration - Defender Source
Defender Source  

Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions


Reply
 
Thread Tools
  #1  
Old August 12th, 2012, 07:22 PM
AgRover's Avatar
AgRover
Status: Offline
Adin
1997 Defender 90 SW Badge #2493
Member
 
Join Date: May 2010
Location: Dallas, TX, USA
Posts: 73
Speedometer calibration

I recently completed a engine conversion on a 1997 NAS D90 SW. I am now running a 2.8 TGV and 4.10 rear differentials with stock wheels and tires. The truck is running great, but my speedometer is off after the conversion. Is there a way to calibrate it so that it reads my speed and mileage accurately?
Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old August 12th, 2012, 08:23 PM
leastonce's Avatar
leastonce
Status: Offline
Jason England
D-90 White 95 SW #65
Site Team
 
Join Date: Jul 2009
Location: NYC
Posts: 6,078
Registry
I think there is a gear you can change out in the transfer box ...
__________________
Quote:
Soapy water / KY jelly, etc. is is basically a must. Yes, good idea to remove trim panels - only takes 5 more minutes to do so.
Car Camping Collective founding member and Chief Executive Officer
Cat Camping Collective founding member and Chief Executive Officer
Reply With Quote
  #3  
Old August 12th, 2012, 08:39 PM
Manimal's Avatar
Manimal
Status: Offline
Carl Jonsson
1995 NAS D90 #219
Site Team
 
Join Date: Sep 2008
Location: Portland, OR
Posts: 3,236
Easiest way to deal with this is to upgrade to a VDO speedometer. Calibrating a VDO is easy.
__________________
Land Rovers. A loosely associated collection of parts, generally traveling in the same direction.
Reply With Quote
Sponsored Links
Advertisement
 
  #4  
Old August 12th, 2012, 08:42 PM
Rocky's Avatar
Rocky
Status: Online
Chris
72 + D1 drivetrain
Member
 
Join Date: Sep 2006
Location: Colonies Aka Boston
Posts: 8,791
How far off us the speedo v say your gos?
__________________
A friend of mine runs a land rover / range rover specialty repair shop. Based on his experience, they are capable of stopping anywhere, anytime, at any cost.

I don't know about the brakes, only their unreliability.
Reply With Quote
  #5  
Old August 12th, 2012, 08:59 PM
leastonce's Avatar
leastonce
Status: Offline
Jason England
D-90 White 95 SW #65
Site Team
 
Join Date: Jul 2009
Location: NYC
Posts: 6,078
Registry
Quote:
Originally Posted by Manimal View Post
Easiest way to deal with this is to upgrade to a VDO speedometer. Calibrating a VDO is easy.
is it possible to set a VDO to current mileage ... I like to see mileage continuity
__________________
Quote:
Soapy water / KY jelly, etc. is is basically a must. Yes, good idea to remove trim panels - only takes 5 more minutes to do so.
Car Camping Collective founding member and Chief Executive Officer
Cat Camping Collective founding member and Chief Executive Officer
Reply With Quote
  #6  
Old August 12th, 2012, 09:08 PM
AgRover's Avatar
AgRover
Status: Offline
Adin
1997 Defender 90 SW Badge #2493
Member
 
Join Date: May 2010
Location: Dallas, TX, USA
Posts: 73
Quote:
Originally Posted by Rocky View Post
How far off us the speedo v say your gos?
It is up to 15 mph off at high at 70 mph. The difference is less at slower speeds.

------ Follow up post added August 12th, 2012 09:09 PM ------

Quote:
Originally Posted by Manimal View Post
Easiest way to deal with this is to upgrade to a VDO speedometer. Calibrating a VDO is easy.
Isn't the speedo on the 1997 D90 a VDO?
Reply With Quote
  #7  
Old August 12th, 2012, 09:34 PM
Manimal's Avatar
Manimal
Status: Offline
Carl Jonsson
1995 NAS D90 #219
Site Team
 
Join Date: Sep 2008
Location: Portland, OR
Posts: 3,236
Not to my knowledge. I gave up on my quest for milage continuity.

Quote:
Originally Posted by leastonce

is it possible to set a VDO to current mileage ... I like to see mileage continuity
__________________
Land Rovers. A loosely associated collection of parts, generally traveling in the same direction.
Reply With Quote
  #8  
Old August 12th, 2012, 09:40 PM
Manimal's Avatar
Manimal
Status: Offline
Carl Jonsson
1995 NAS D90 #219
Site Team
 
Join Date: Sep 2008
Location: Portland, OR
Posts: 3,236
I don't know. I have a 95 that had a stock mechanical counter and spinning wire cable sensor. I replaced it with a VDO speedo that counts milage electronically and that uses an electronic sensor. Calibrating that was as as easy as pushing a button. My old stock mechanical speedo was off considerably as i have 4:11 gearing and to my knowledge there is no easy way to calibrate it.

Quote:
Originally Posted by AgRover
Isn't the speedo on the 1997 D90 a VDO?
__________________
Land Rovers. A loosely associated collection of parts, generally traveling in the same direction.
Reply With Quote
  #9  
Old August 13th, 2012, 11:51 AM
97-D90-736
Status: Offline
Nick Vogel
1997 D-90 / 2012 LR4
Member
 
Join Date: May 2009
Location: Houston, Texas
Posts: 508
My 97 Speedo is VDO.
Reply With Quote
  #10  
Old August 13th, 2012, 11:56 AM
Manimal's Avatar
Manimal
Status: Offline
Carl Jonsson
1995 NAS D90 #219
Site Team
 
Join Date: Sep 2008
Location: Portland, OR
Posts: 3,236
Does it have a digital odometer?
Reply With Quote
  #11  
Old August 13th, 2012, 12:00 PM
Viton's Avatar
Viton
Status: Offline
Deaf Ember
Smart 4x4
Member
 
Join Date: Jan 2009
Location: La
Posts: 1,231
Stock '97s have a digital odo.
Reply With Quote
  #12  
Old August 13th, 2012, 12:17 PM
chris snell's Avatar
chris snell
Status: Offline
Chris Snell
87 Ex-MOD 110
Member
 
Join Date: Aug 2005
Location: Kansas
Posts: 2,439
Quote:
Originally Posted by leastonce View Post
is it possible to set a VDO to current mileage ... I like to see mileage continuity
Yes. A speedometer shop can do this for you and provide some kind of certification.
Reply With Quote
  #13  
Old August 13th, 2012, 12:38 PM
Capt Milks's Avatar
Capt Milks
Status: Offline
Mike
Defender V-8, Defender 2.25
Member
 
Join Date: Oct 2004
Location: United States
Posts: 1,801
The spedo electronic sensor at the rear of Trans box, by the brake drum for the hand brake has, four I think, different gears that you can install to get the different readings. They are color coded. I hadn't played with these too much but they do effect the speed calibration. Don't know if they will correct what you have going on however.
__________________
Land Rover 110
Reply With Quote
  #14  
Old August 14th, 2012, 05:10 AM
Antichrist's Avatar
Antichrist
Status: Offline
Tom Rowe
Defender/Disco/Series/MoD
Member
 
Join Date: Feb 2006
Location: Atlanta, GA USA
Posts: 1,280
These two links were posted in another thread back in Oct.
http://www.aulro.com/afvb/technical-...ml#post1297810
http://www.land-rover-blog.co.uk/how...-a-land-rover/
__________________
Tom Rowe
Atlanta, GA

Four wheel drive allows you to get stuck
in places even more inaccessible.

62 88 Regular
67 109 6cyl NADA x2
74 Lightweight - The Antichrist
95 DI 5-speed
95 D90 5-speed
97 D1 Automatic
Reply With Quote
  #15  
Old August 17th, 2012, 02:10 PM
AgRover's Avatar
AgRover
Status: Offline
Adin
1997 Defender 90 SW Badge #2493
Member
 
Join Date: May 2010
Location: Dallas, TX, USA
Posts: 73
I emailed the folks at ECR. They told me that Hollywood SpeedO may be able to calibrate it. I will let you know what Hollywood SpeedO says.
Reply With Quote
  #16  
Old August 18th, 2012, 08:51 AM
AgRover's Avatar
AgRover
Status: Offline
Adin
1997 Defender 90 SW Badge #2493
Member
 
Join Date: May 2010
Location: Dallas, TX, USA
Posts: 73
The folks at Hollywood SpeedO can calibrate it. They just need the indicated and actual speeds at 30mph, 45mph, and 60mph. It will cost $75. I'll let everyone know the results once I get it back.
Reply With Quote
Reply

Lower Navigation
Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions

Tags
speedo

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Detach Speedometer Cable Matt Klapmust Defender Technical Discussions 2 October 2nd, 2013 01:43 PM
VDO Speedometer Parts/Installation/Problems Merged Threads redrover Smaller Projects 86 March 7th, 2008 10:20 PM
Milage/ Speedometer calibration? oldscratchggf Defender Technical Discussions 3 January 3rd, 2006 03:59 PM
Correcting speedometer after lift/tires Seriesman Defender Technical Discussions 16 November 24th, 2005 08:37 PM
?????? jimmy salmon Defender Technical Discussions 8 October 13th, 2005 11:54 AM


All times are GMT -5. The time now is 07:45 PM.


Copyright