ollyshorey

Just got some new pads for my bugeye, but have never fitted an impreza with new pads before, but i have done loads of other cars.

Is there any special instructions of things i should know.

??

Your comments are greatfully received.

stockcar

take it you've got std 4pot caliper - very straight forward, should have no probs (mail me if you want any advice)
alyn - as performance

Chelspeed

STi's brembos are very easy too.

Steve vRS

1. Loosen wheel nuts
2. Jack car up
3. Remove wheel
4. Remove pins which are wired together
5. Jump as calliper spring jumps out at you
6. Remove spent pads
7. Open bonnet
8. Remove brake fluid reservoir cap
9. Ease calliper pistons back into the calliper
10. Copper slip the pistons and the insides of the calliper
11. Copper slip the backs of the pads
12. Drop pads into calliper
13. Re-fit pins and clips etc.
14. Replace wheel and tighten to 85Lbft torque
15. Lower car off jack
16. Replace fluid reservoir cap
17. Start the car up and pump the brake pedal (with the handbrake
off) until it is nice and firm
18. Bed the pads in
19. Double check that all wheel nuts are tight after 20miles of
driving

That's how I do it.

Steve

ollyshorey

Cheers Steve,

Whats copper slip ??

Also how do you recomennd easing the pistons into the cylinders ??

Cheers,

Olly.

BOB.T

Copper slip = copper grease = high melting point grease

The best way to get the pitons back in is to use a G clamp, avoid using prybars against the disc if you can, you could damage it Also, you best bet would prolly be to do one pad at a time. If you take both pads out, the two pistons on the opposite side will be pushed out as you push the others in, if you see what I mean!

Finally, if you've had to top the fluid up, chances are, when the new pads are in there will be too much fluid, so after you've taken the cap off, pop a cloth under to catch any excess fluid

ollyshorey

Thanks for that.

What about when you need to get the pad out and you have to looses the piston then, a G clamp wont fit !! what would you reccoemnd ?

Olly.

BOB.T

You'll be able to get the G clamp on the top edge of the pad and move it enough to get it out, then push the pistons back in.

Dyney

Sorry if some of this is a bit basic!

Please read the whole procedure before begining!!!!

I take it you can jack the car? OK, just incase!
Use the jack from the boot the handle is clipped under the wooden floor (above the spare wheel)! (I know people that have not found this in 3 years of ownership)

Place the jack behind the front wheel. If you look at the sill there is a cut out in the plastic sill cover.
There is a groove in the top of the jack, it fits the part of the sill sticking down.

Remember to loosen (not remove!!!) the wheel nut before you take the weight off the wheels (1 turn will do).

Take the wheel off.
There should be 2 pins on the calliper (nearest to the front of the car). Follow the pins inboard (towards the engine) past the curly clip to the other side of the calliper. There should be a wire type clip that goes through the pins and clips into the calliper in between the pins.
Remove the clip (noting how the clip goes). (It's spring steel so will bend a bit if you need to).
Note the way the curly clip goes round the pins.
Withdraw the pins (you may need a pair of pliers) be careful of the curly clip it may spring off!!

Don’t worry if the disk feels loose as the wheel holds it on usually!!!

With the pins removed you should be able to pull the pads out (you may need pliers) (If they don't come out give them a bit of a wiggle or try to push them back in to the calliper with a large flat screwdriver).

Once you have the pads out you need to push the Pistons (pots) back in (do not damage the rubber dust seal round the pistons). A G clamp is ideal or a piece of wood/screwdriver.
It can be a bit awkward as the other pistons sometimes move out when you push one back (It's a bit of trial and error until they are all pushed back enough to get the pads in). Just do each one a bit in turn and then go back round.
It's not as difficult as it sounds!!!

Take the new pads and swap all the anti squeal shims over from the old pads. (Do not get any oil/greese or other muck on the disk side of the new pads!!!)

If you have any Copper grease smear a little on the shims before you refit the pads.

Now put the new pads in to the calliper and put the pins through. (If they don't fit you may have to push the pistons back a bit more).

Now put the curly clip on to the pins (the same way up as you should have noted before removing it). If it won't fit, remove 1 of the pins half way, and push it through the clip and then push it all the way home.

Re-fit the wire clip (you may have to turn the pins so the holes in the pin line up with the clip).

Re-fit the wheel. Do the bolts up finger tight.

Lower the car.
Tighten the wheel nuts fully (It is good practice not to tighten them in order. Do them up in the sequence---1,3,5,2,4) (1 is any nut!! It's just your starting point). This makes sure the wheel goes on straight. This method should be used with any wheel, regardless of car manufacturer.

Start the car and depress the pedal fully, pump the pedal until the resistance returns.

The car should now be safe to drive, but to make sure take a gentle drive down a quite street and test the brakes.
Please be aware that new pads will require bedding in (please see manufacturers instructions).

I take no responsibility for anyone following these instructions. If you are not confident after reading this please take seek professional help

Iain.

Jza

I've changed several pads and it really not that hard. The only thing i'd add is:

1) Keep everything clean

2) If your not sure, get a garage to do it as one thing you really dont wont is failing breaks to save an hours labour !!!

Jza