Front Brake Disc Replacement

[Maurice]

The front brake discs on my 2009 i-vtec are down to just over 19mm and therefore will soon need replacing.
I'm thinking of doing it myself.
Are there any particular difficulties, like caliper piston retraction, or anything else?

[carlnike]

Fronts are straight forward, lid of reservoir, strip down and clamp the piston back, plus Honda oem are cheap from cox Honda parts

[culzean]

Wait till pads need replacing before fitting new discs as you will need to fit new pads with new discs anyway,  as the old pads will have bedded into old disc surface contours and its bad practice to fit old pads to new discs.

Front pistons just push back - it is only the rear that have to be turned and pushed back with a proper tool,  this is because of special handbrake operation on the rear which backs up the pistons with a screw mechanism.

Make sure you fit shims (or refit if new ones not supplied with pads) or you will get noisy brakes.

You may need impact driver to get countersunk crosshead screws that retain the  discs,  if discs are hard to get off there are a couple of 8mm threaded (M8) holes in disc which can be used as jacking points.

there are a few threads on forum about fitting discs. 

This is just one           http://clubjazz.org/forum/index.php?topic=8089.msg39947#msg39947

[guest1372]

You may be lucky, but the impact driver is a useful tool to add to the box (and less than £7).  CeraTec copper-free brake lubricant is recommended on mating surfaces of the caliper / piston / shims.  If disc is seized on, then a sharp tap should free it, it's going to the tip anyway.  Cleaning and a smear of protective grease on the metallic brake pipes & unions while easily accessible is worthwhile.
--
TG

[fatlad]

The front brake discs on my 2009 i-vtec are down to just over 19mm and therefore will soon need replacing.
I'm thinking of doing it myself.
Are there any particular difficulties, like caliper piston retraction, or anything else?

hi maurice

if it helps, 'i have brakes for life'  from halfords. i havent had to pay for my last 2 cars due to this.

may be worth a look & they use brembo brakes too!!
http://www.halfordsautocentres.com/advice/brakes-advice/brakes4life

[Ozzie]

 

[Maurice]

When getting my Jazz Hybrid serviced (every 3 months) I kept getting reports that the brakes were 80% worn, so after 3 services with the brakes being 80% worn I thought I would go to a brake specialist who said they will measure them and not just visually guess. He said the brakes were down to 13.5mm and 13mm was the Honda recommended minimum so they were about to go below the minimum tolerence. However there was "plenty of meat on the pads" so he suggested running the pads down to the rivets and replace brake pads and discs together.

I thought the minimum front disc thickness was 19mm, but you're saying it's 13mm?

[Ozzie]

 

[Ozzie]

I have just browsed motor factors and it appears that discs come in different widths sizes, fronts are 21mm thick and 19mm is the minimum, and rears are 9mm thick and the minimum width is 7mm 

[guest1372]

HondaFitJazz says for a

Mk1 (GD) front disc: original=21mm, service limit=19mm

Mk2 (GE) front disc: original=21mm, service limit=19mm
         rear disc:  original=9mm, service limit=8mm
--
TG

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[culzean]

Seems like everybody who handles your car (garages and tyre places) seem to tell you the brake pads and / or discs are worn,  gets to be like a stuck record.  Maybe because they think nobody looks at them and won't check.  I have had both Honda and ATS say pads were worn and need replacing,  but guess what ?  When I checked there was still plenty left on pads and discs were fine.  What is it about brakes that makes people lie about them - easy money I guess,  and to be fair most people never check brakes until they fail or start making a noise.

My wife took her Jazz into ATS to get a puncture fixed and they said front pads need replacing ASAP,  was 5mm left on them - maybe they pick on women as easy prey.

[VicW]

These warnings do seem to be routine.
On the rare occasions my Honda's have been serviced by Honda (when they are under warranty) I  have always got calls advising me of brake pad/disc wear or tyre wear.
I always decline because I am in the fortunate position of having a son who owns an auto repair business who I work for on occasion.

Vic.

[longlegpete]

If your changing you pads/discs its alway worth as well as the copper grease bit putting a little silicone grease round the pistons under the dust boot before pushing the piston/pistons back in

[culzean]

It is important to get 100% silicon based paste,  if there are any petroleum products in the grease they can attack seals and gaiters (brake fluid is not petroleum based - it is a man made glycol ester,  which is why special material is used to make seals that is not compatible with petroleum products).

[longlegpete]

Fuchs do a good silicone grease (renolit) which is what we always use on our plant and vehicles , never heard it called paste before