Annoying rattle,

[Skyedriver]

Anyone able to advise how to get to the area between the brake pedal and the master cylinder?
I've spent a year trying to work out where the rattle is coming from on rough surfaces. Was blaming the drop links but when you press the brake pedal there's a similar clunk and then there is no rattles. Guess there should be a spring or something keeping some sort of pushrod taught and it's dropped off.

[QBee]

The rattle comes from the front and disappears when you press the brake pedal?

For the last couple of months I had the sound of the whole of the back of the car falling off every time I went over a bump. Checked every nut and bolt from the seats backwards, as did my TVR expert.

Then I noticed that if I drove the car with my foot lightly on the brake pedal, the car stopped disintegrating.
Changed my rear brake pads for some with springs to stop them rattling, no more rattles.

So my first check on your car would be to repeat driving over bumps with your left foot on the brake pedal, and then if that stops the noise, investigate your front brake pads

[BeastMaster]

QBee said:

The rattle comes from the front and disappears when you press the brake pedal?

For the last couple of months I had the sound of the whole of the back of the car falling off every time I went over a bump. Checked every nut and bolt from the seats backwards, as did my TVR expert.

Then I noticed that if I drove the car with my foot lightly on the brake pedal, the car stopped disintegrating.
Changed my rear brake pads for some with springs to stop them rattling, no more rattles.

So my first check on your car would be to repeat driving over bumps with your left foot on the brake pedal, and then if that stops the noise, investigate your front brake pads

Agree with above - the pads are rattling in the callipers, depending type should have anti rattle springs, a curved spring metal plate which has lost its ability to hold the pad still when off the brake pedal. Andy

[QBee]

Ps the initial clunk on pressing the brake pedal is the pad moving as it first contacts the disk firmly, if I am correct.

[Skyedriver]

Your symptoms are totally the same but the noise really seems to be coming from behind the pedal rather than lower down but noise travels so its off with the wheels.
Thanks
Tony

[QBee]

I convinced myself that my rattle was the seat anchoring bolts.
Tightened them all, no change.
Then I convinced myself it was the roll cage anchors. Nope
Then we were certain it was washers rattling somewhere near the diff. Nope.
The noise never came from the wheels area.
All I can assume is that sound travels in mysterious ways.

It might not be your issue......but its an easy one to eliminate.

[johnh8]

There is no separate spring behind the pedal box the spring is inside the servo which is bolted directly to the pedal box.The master cylinder is bolted to the servo.

Edited by johnh8 on Saturday 14th May 15:42

[QBee]

Of course, it could be the oldest cause in the book, the spanner behind the wheel.....

[johnh8]

Just a thought have you checked that the nuts that hold the servo to the pedal box are tight.