Go Back   The 75 and ZT Owners Club Forums > The 75 and ZT Owners Club Forums > Technical Help Forum
Register FAQ Image Gallery Members List Calendar Mark Forums Read
Notices

Reply
 
Thread Tools Display Modes
Old 21st November 2020, 19:37   #11
macafee2
This is my second home
 
Rover 75 Saloon & Tourer

Join Date: Sep 2012
Location: Lincoln
Posts: 14,892
Thanks: 1,630
Thanked 3,032 Times in 2,181 Posts
Default

Quote:
Originally Posted by T-Cut View Post
Slacken the adjuster plate bolts, lube the plate with a spray and tap the trailing arm near the front bush. I would only do this to 'tune' them following a tracking station session. Only gentle taps. I use the Gunson Trakrite for tuning.


TC
Sorry T-cut but is the tool for slackening the bolts?


According to the Gunson web site it is for the front wheels (steered wheels)https://www.gunson.co.uk/product/G4008

macafee2
macafee2 is offline   Reply With Quote
Old 21st November 2020, 21:46   #12
COLVERT
This is my second home
 
R75 Saloon.

Join Date: Feb 2009
Location: France/or Devon.
Posts: 14,003
Thanks: 3,851
Thanked 2,167 Times in 1,816 Posts
Default

Quote:
Originally Posted by macafee2 View Post
Sorry T-cut but is the tool for slackening the bolts?


According to the Gunson web site it is for the front wheels (steered wheels)https://www.gunson.co.uk/product/G4008

macafee2
Not for slackening the bolts. For adjustment only.

The Gunson item for tracking only.---
COLVERT is offline   Reply With Quote
Old 22nd November 2020, 08:28   #13
macafee2
This is my second home
 
Rover 75 Saloon & Tourer

Join Date: Sep 2012
Location: Lincoln
Posts: 14,892
Thanks: 1,630
Thanked 3,032 Times in 2,181 Posts
Default

Quote:
Originally Posted by COLVERT View Post
Not for slackening the bolts. For adjustment only.

The Gunson item for tracking only.---
but how does the Rover tool work/get used?

macafee2
macafee2 is offline   Reply With Quote
Old 22nd November 2020, 09:09   #14
T-Cut
This is my second home
 
Rover75 and Mreg Corsa.

Join Date: Nov 2006
Location: Sumweer onat mote o'dust (Sagin)
Posts: 21,751
Thanks: 341
Thanked 3,660 Times in 2,924 Posts
Default

Quote:
Originally Posted by macafee2 View Post
According to the Gunson web site it is for the front wheels (steered wheels)https://www.gunson.co.uk/product/G4008
It detects tyre-to-road shear when rolling fowards, so the priciple applies to any wheels with adjustable toe. For most cars, this is the front ones, but the 75/ZT has toe adjustable front and rear wheels. Hope this clarifies.


TC
T-Cut is offline   Reply With Quote
Old 22nd November 2020, 09:18   #15
T-Cut
This is my second home
 
Rover75 and Mreg Corsa.

Join Date: Nov 2006
Location: Sumweer onat mote o'dust (Sagin)
Posts: 21,751
Thanks: 341
Thanked 3,660 Times in 2,924 Posts
Default

Quote:
Originally Posted by macafee2 View Post
but how does the Rover tool work/get used?
Good question. I've not seen nor used the 'official' tool, but I believe the raised lugs/loops on the baseplate are somehow engaged by the tool to allow the plate to be adjusted sideways. This causes the angle of the trailing arm to change and thus the rear wheel toe. A different tool I noted online several years ago had 'claws' to engage in the loops. It was basically a lever that allows you to pull the plate in/out.



TC
T-Cut is offline   Reply With Quote
Old 23rd November 2020, 11:12   #16
brian c
Regular poster
 
Rover 75 Saloon

Join Date: Mar 2008
Location: Sutton Coldfield
Posts: 39
Thanks: 1
Thanked 1 Time in 1 Post
Default Rear Toe Adjustment

The bore of the tool scales the same as the washer face of the fixing bolts so with the bolt backed out 3/4mm the tool can be engaged.
The tool looks the same as that advertised in the U.S. for the Mini so may be worth checking with dealers here to see if the sizes are the same.
brian c is offline   Reply With Quote
Old 25th November 2020, 13:25   #17
vilas66
Avid contributor
 
vilas66's Avatar
 
Rover 75 CDTi Tourer, CDTi Tourer, Saloon

Join Date: Sep 2007
Location: ROME
Posts: 215
Thanks: 60
Thanked 32 Times in 22 Posts
Default

Quote:
Originally Posted by T-Cut View Post
Get a Gunson Trakrite shear gauge and you'll get it better than the local depot. The primary issue with DIY tracking is to have the Thrust Angle in spec first. I can't see a reliable DIY method of doing that - I suppose sombody will tell us how? So it needs a professional setup before you do the final tweek. This 'tune' as I call it is the difference between the toes being within spec and hitting the sweet spot for your particular car.


TC
Use this calculator https://robrobinette.com/DIYAlignmentCalculator.htm with parallel strings and You wil have a very good 4 wheel alignment DIY tool.
I am using the calculator with a couple of wood strips to keep the strings parallel each other and a good digital caliper for measurements. The results are excellent: ALL of my cars drives straight and no abnormal wear on tyres (front and rear). A nightmare everytime I have been for a wheel alignment in a garage. Hope this helps
__________________
Rover 75 Connoisseur Tourer (Two), Contemporary SE Saloon and (**** most of all **** ) Wolseley 6/99 and SD1 2000 owner
Regular Member
vilas66 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

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

Forum Jump


All times are GMT. The time now is 15:03.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright © 2006-2023, The Rover 75 & MG ZT Owners Club Ltd