Upgrading Brakes on a '97 1.8 Laguna - Page 3 - Renault Forums :: Independent Renault forum

Brakes/Hubs Brakes, Hubs, and etc

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post #11 of 13 (permalink) Old 7th May 2009
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The amount of fluid isn't the issue it's all down to presssure. When flexi-pipes get old they tend to swell when under pressure so some braking effort is lost.

In all honesty if it was my car I would and I wanted good brakes at little expense I would renew all the components as per standard as it surprising how braking systems deteriorate with age - you will be surprised at the difference.
Itis not unusual for braking efficiency to fall very gradually by as much as 25% over 10 years or so. So just by renewing the components you automatically gain improvement.
Even just changing the brake fluid can make quite a difference at times
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post #12 of 13 (permalink) Old 7th May 2009
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Originally Posted by madnoel10 View Post
Renewing or upgrading the brake flexi-hoses can also make a big difference
Fair play Noel you do give good advice!

This is a good mod to do. Replace the hoses with steel braided pipes or evem just new OEM spec should give better pedal feel. As Noel quite rightly put over the years the rubber pipes get a bit tired and will swell fractionally when you step on the brake pedal. New OEM pipes obviously won't do this as much but steel braided pipes won't do it at all and will give you a nice firm pedal.

These are good. I plan on getting some for my Mazda.

A fluid change will help too. I think brake fluid absorbs something like 2% water per year. So if you think it hasn't been changed in a while it would be worth changing.
Water in there will make you pedal feel squidgy and the worst part is water has a lower boiling point than brake fluid. So if you brakes are getting hot ,that water in your fluid is turning into steam which is compressable, then before you know it you have no brakes to stop with.

When I got my MX it had been stood round for a while and the brakes were crap, a fluid change and a good clean all round improved things 10 times.

Understeer is when you hit the wall with the front of the car.
Oversteer is when you hit the wall with the rear of the car.
Horsepower is how fast you hit the wall.
Torque is how far you take the wall with you.

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post #13 of 13 (permalink) Old 7th May 2009 Thread Starter
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Thanks for all the advice etc....its given me a lot of help as to what to do.

I just bled the breaks every now and again.
And I replaced the front pads about 2years ago and the front disks back (from local motor factors) in '05 and I think I adjusted the rear pads then too. Other than that I've done nothing with the brakes.
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