Renault Scenic 2 - Rear Brake Pad Replacement - Page 8 - Renault Forums :: Independent Renault forum

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post #36 of 108 (permalink) Old 27th July 2007
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Hi Johnny – Nice run down on doing brake but these wee pointers may help.

Only two bolts are supplied as you only need to remove one each side to replace pads – you undo one bolt and guess what the calliper swings upwards rotating on the bolt that is left. Well that’s their reasoning although I prefer to remove both and apply locking compound

Yeh all rear brakes get more cr** on them that’s because the front wheels fling all the road dirt towards them.

If the handbrake cable is removed the pistons will retract more easily.

The proper tool is best and can be bought for around a tenner and minimises the risk of any damage to the piston

It is not recommended to use copper-slip (anti-seize compound) on the rear of pads as it will cause the rubber seal around the piston to deteriorate and as repair fits are no longer available it would then mean replacing the whole calliper. I have contacted a brake manufacturer and they do not recommend the use of any form of lubricant. Copper slip may be used in lubricating the guides or slides but only the minimum should be applied. But be warned brake manufacturers will not give any warranty if anti-seize compound is used.

The tacky surface as you call it is there to minimise squealing but only works if the surface of the piston is clean and undamaged.

The pad which wears the quickest is always the one that was stuck but probably the only one working properly – hence it wears more.
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post #37 of 108 (permalink) Old 28th July 2007
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Great input from Madnoel ... on the back of a clear tutorial from Gonescnile.

1) Agree - suppose it's best to resist using copaslip on the back. Although those little guides ...

2) Tacky on rear pads ... as I thought - likely (though) that tacky surface on a dirty piston is not great

3) Uneven wear ... I suppose that exacerbated by the wonders of auto handbrakes ...oh well.

4) Proper tool fro piston return -- agree with that !
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post #38 of 108 (permalink) Old 30th July 2007
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Proper tool for £10? At that price I would buy it; didn't I see someone else say it is £150?
Do you get them from Renault dealers or a generic tool from independent suppliers?
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post #39 of 108 (permalink) Old 30th July 2007
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Hi - yeh it ain't a professional but the tool makers seem to have identified a niche in the market for us home mechanics. The DIY tool is for use with a socket bar and ratchet. It called a 3 eight drive windback cube
Have a look at the link below

Brake Caliper & Pad Tools
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Last edited by madnoel10; 30th July 2007 at 03:36 PM.
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post #40 of 108 (permalink) Old 1st August 2007
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i have replaced the rear brake pads on my own car and found two good tools to aid in winding in the piston .the first one is the spanner that is supplied with my angle grinder to change discs this fits the groves perfect then a ten inch extention bar fits within the slot of the calipers body placing the end of the bar over the head of the spanner while you turn it clockwise, a two man job, no.
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brake , pad , rear , renault , replacement , scenic

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