Are Shield discs worth it?

Rickshaw · 26th October 2018, 16:00

Whilst working on a wheel arch I noticed that the Shield disc was badly rusting so I contemplated buying a full , new set . I intended rigorously coating these with anti-corrosion stuff before replacement. Since I suspected that replacing the rear ones might involve work with bearings etc I called my local 75 garage for possible help. The chap said that he simply would not bother :–

he had owned various cars and the Shield discs rotted on all and he never replaced them
they provided very little real protection for the brake discs etc
if anything did get on a disc , the action of braking would remove it
replacing the rear ones could result in some thing 'breaking' in the process

So here are the questions :-

Is it worth bothering to replace ?
Are the rear Shield Discs really problematic and the process risk some breakage ?
Does anyone have any useful observations / experience ?

All the best

macafee2 · 26th October 2018, 16:22

the rear ones do require the hub to be removed and the bolts that hold the plate in place are amazingly tight for what they are.

Re the front. from another thread it has been suggested that part of the shield is cut away so the front hub does not need to be removed. There is a thin strip that's cut away.

The rears if knackered do need to be replaced as the hold the handbrake shoes.

These are diy jobs

macafee2

Avulon · 26th October 2018, 16:46

The rear ones also carry the handbrake shoes mechanism...

chris75 · 26th October 2018, 17:09

Quote:

Originally Posted by Rickshaw

[*] Is it worth bothering to replace ?

Of course it is

You wouldn't drive around without a front grille badge , would you ?

You know it makes sense !

macafee2 · 26th October 2018, 17:18

Quote:

Originally Posted by Avulon

The rear ones also carry the handbrake shoes mechanism...

and the handbrake cable

macafee2

Rickshaw · 26th October 2018, 17:27

Thanks chaps for replies so far - good points that indicate it IS worth investing in new shields .
Much appreciated - as are any further observations from anyone.

steve-45 · 26th October 2018, 19:02

Quote:

Originally Posted by chris75

Of course it is

You wouldn't drive around without a front grille badge , would you ?

You know it makes sense !

Oops ! .. better get around to fitting that new front grill badge....

MWMan · 27th October 2018, 07:48

Quote:

Originally Posted by Rickshaw

Thanks chaps for replies so far - good points that indicate it IS worth investing in new shields .
Much appreciated - as are any further observations from anyone.

I decided to change my Disc Shields when I did the front and rear suspension overhauls. The rears were easy to change, but the fronts were a bit more of a challenge. I have attached a document showing how I went about it. It might be of some help.

Rickshaw · 28th October 2018, 20:18

Just to say I really appreciated the guide note in the previous message. Such help is an excellent example of what this club is all about and is much appreciated.

26th October 2018, 16:00	#1
Rickshaw Loves to post Rover 75 Tourer, 2 X75 Saloon , MGTF Sunstorm Join Date: Jan 2013 Location: Guildford Posts: 380 Thanks: 497 Thanked 172 Times in 93 Posts	Are Shield discs worth it? Whilst working on a wheel arch I noticed that the Shield disc was badly rusting so I contemplated buying a full , new set . I intended rigorously coating these with anti-corrosion stuff before replacement. Since I suspected that replacing the rear ones might involve work with bearings etc I called my local 75 garage for possible help. The chap said that he simply would not bother :– he had owned various cars and the Shield discs rotted on all and he never replaced them they provided very little real protection for the brake discs etc if anything did get on a disc , the action of braking would remove it replacing the rear ones could result in some thing 'breaking' in the process So here are the questions :- Is it worth bothering to replace ? Are the rear Shield Discs really problematic and the process risk some breakage ? Does anyone have any useful observations / experience ? All the best

26th October 2018, 16:46	#3
Avulon This is my second home 1.8t Tourer Join Date: Oct 2011 Location: Tanelorn Posts: 4,830 Thanks: 956 Thanked 1,148 Times in 916 Posts	The rear ones also carry the handbrake shoes mechanism... __________________ Need a T4 ?: T4 Owners Map thanks to Stevestrat ( use at your own risk) Where?: https://en.wikipedia.org/wiki/Tanelorn Mods/Retrofits: PCV vortex 'filter'; bluetooth; inline thermostat; reversing sensors; plenum spyhole ; headlamp washers ; Diy mp3 player replacing CD multichanger; FBH with remote; Headlamp washers; black/chrome front grille, rear blind; Xenon projectors To do: puddle lights; 2 Din cd/nav to fit; boot release button

26th October 2018, 17:27	#6
Rickshaw Loves to post Rover 75 Tourer, 2 X75 Saloon , MGTF Sunstorm Join Date: Jan 2013 Location: Guildford Posts: 380 Thanks: 497 Thanked 172 Times in 93 Posts	Great Thanks chaps for replies so far - good points that indicate it IS worth investing in new shields . Much appreciated - as are any further observations from anyone.

28th October 2018, 20:18	#9
Rickshaw Loves to post Rover 75 Tourer, 2 X75 Saloon , MGTF Sunstorm Join Date: Jan 2013 Location: Guildford Posts: 380 Thanks: 497 Thanked 172 Times in 93 Posts	Really Helpful Just to say I really appreciated the guide note in the previous message. Such help is an excellent example of what this club is all about and is much appreciated.

26th October 2018, 16:22	#2
macafee2 This is my second home Rover 75 Saloon & Tourer Join Date: Sep 2012 Location: Lincoln Posts: 14,935 Thanks: 1,630 Thanked 3,032 Times in 2,181 Posts	the rear ones do require the hub to be removed and the bolts that hold the plate in place are amazingly tight for what they are. Re the front. from another thread it has been suggested that part of the shield is cut away so the front hub does not need to be removed. There is a thin strip that's cut away. The rears if knackered do need to be replaced as the hold the handbrake shoes. These are diy jobs macafee2