HOW TO - change brake discs and pads (3200/4200/Spyder/GranSport)

[CatmanV2]

I think you will need a very big puller as the parts of the disc which you might get purchase on are around the outside. You best bet really is make sure everything is undone and a block of wood and a BFH (big hammer).

You have a letter missing from your initialism. I wonder what it is....

C

 

[2b1ask1]

I do have a 10ton hydraulic bearing puller set that is up to the task; where are you located?

 

[2b1ask1]

One of these:

Kennedy hydraulic puller set

I'd suggest popping some alternative M14 bolts in the wheel bolt holes and putting a thick plate over them to centre on....

 

[TimR]

After the discussion around idiots hitting their suspension parts to release rod ends and such. It is indeed preferable...
You could find yourself hitting at the suspension, and still not getting it done..
Learn the hard way- get it right first time..!!!

 

[Zep]

After the discussion around idiots hitting their suspension parts to release rod ends and such. It is indeed preferable...
You could find yourself hitting at the suspension, and still not getting it done..
Learn the hard way- get it right first time..!!!

The assumption is that you have your eyes open when using the hammer. And that the discs are being replaced.

@GraemeA if you are anywhere near northampton you are welcome to borrow this.

 

[TimR]

The assumption is that you have your eyes open when using the hammer

Tell you what- you hold the nail mate, and I'll hit it !?....

 

[2b1ask1]

Better still; you nod your head and I’ll hit it!

 

[CatmanV2]

Better still; you nod your head and I’ll hit it!

Do you know the piano's on my foot?

C

 

[Zep]

Do you know the piano's on my foot?

C

You hum it son, I’ll play it.

 

[CatmanV2]

You hum it son, I’ll play it.

Eye thenk ewe!

C

 

[rs48635]

btw - ensure the caliper is removed and safely stowed.
As said above ^^. These methods make certain assumptions

1. the disk will be replaced
2. you can wield said tool F.B.H
3. he said hit it not tickle it

 

[Mr S]

2 hammers are helpful. One to use the butt of against said wheel/disk, and the other the whollop it with.

 

[GraemeA]

The assumption is that you have your eyes open when using the hammer. And that the discs are being replaced.

if you are anywhere near northampton you are welcome to borrow this.

Thanks for the offer, but New Zealand is a bit far away :^).

Success. I'd bought a big gear puller to take the steering wheel off and once I found the right object to place against the hub - it acted like a hole punch on the first bit of steel I used and motorcycle tyre irons just bent like a pretzel - It was away. In the end I used a short steel wrecking bar as a brace.

Now it's off, I don't know whether to look at having them skimmed or fit the new discs. They look perfect, just with wear ridges. I see the wear limit is supposed to be 30mm - these would clean up fine at 29.5mm.

Or do I just fit the new ones and move on?

 

[2b1ask1]

If you have the new ones I’d fit them and move on. Congrats on getting the old one off any way.

 

[Zep]

Thanks for the offer, but New Zealand is a bit far away :^).

Success. I'd bought a big gear puller to take the steering wheel off and once I found the right object to place against the hub - it acted like a hole punch on the first bit of steel I used and motorcycle tyre irons just bent like a pretzel - It was away. In the end I used a short steel wrecking bar as a brace.

Now it's off, I don't know whether to look at having them skimmed or fit the new discs. They look perfect, just with wear ridges. I see the wear limit is supposed to be 30mm - these would clean up fine at 29.5mm.

Or do I just fit the new ones and move on?

Minimum thickness is 30mm, they are toast.

 

[GraemeA]

New discs and pads now fitted. Thank you everyone who offered advice.


My puller got the second disk off in seconds, though with quite a bang. I noticed the removed pads had been heavily chamfered before fitting. Is there reasoning behind doing this? I've fitted the new Ferodo ones as they came out of the box - i.e. no chamfering.

 

[Zep]

New discs and pads now fitted. Thank you everyone who offered advice.


My puller got the second disk off in seconds, though with quite a bang. I noticed the removed pads had been heavily chamfered before fitting. Is there reasoning behind doing this? I've fitted the new Ferodo ones as they came out of the box - i.e. no chamfering.

There are some tolerances in some different pads which can make them tight in the caliper. Also there can be corrosion under the guides which pushes them out slightly. If they moved freely when you put them in then you are all good!

 

[2b1ask1]

Chamfering the leading edge stops or reduces harsh ‘grabbing’, it was a necessary thing with drum brakes but I’m not convinced the same is necessarily true for disks.

 

[GraemeA]

Hi all

I've done a few k's on the new disks and pads and notice that they sometimes squeal at low speed.

Is there a recommended fix to stop this happening?

Thanks in advance.

 

[Zep]

What pads did you fit? How did you bed them in?