Strange Noise Near Rear Wheels

[smaderazo]

Hi guys,

I own a mk1 gt3, and i have a little recurring problem thats been bugging me a few months now. i noticed evrytime i start the engine in the morning and release the handbrake and begin to drive off, the car struggles for a moment to move and a popping noise can be heard from the rear wheels, before the car moves. Im thinking, did the hand brake get stuck even after i released it? I was told not to engage handbrake after using the car since the brakes are still very hot and may cause damage. Should i avoid using handbrake when parked in my garage? or do you guys think it may be a different problem? Thanks in advance! Peace :)

Sid

Edited October 13, 2007 by smaderazo

[gt3'er]

One possibility is...If the brakes are wet (e.g. after washing car or driving in rain) and left overnight with the parking brake on, the metallic components of the pads can "rust" onto the rotor. In the morning, the brakes will "pop" to break the bond as the car starts to roll. No big deal. If no wet conditions, then it's not this. In any case, I would not hesitate to set the parking brake except under severe heat conditions (e.g. tracking the car).

G'luck.

FR

[smaderazo]

One possibility is...If the brakes are wet (e.g. after washing car or driving in rain) and left overnight with the parking brake on, the metallic components of the pads can "rust" onto the rotor. In the morning, the brakes will "pop" to break the bond as the car starts to roll. No big deal. If no wet conditions, then it's not this. In any case, I would not hesitate to set the parking brake except under severe heat conditions (e.g. tracking the car).

G'luck.

FR

THANKS BUDDY!

[1999Porsche911]

Probably your brake shoes sticking on the drum. They are not retracting when the parking brake is released. Noise will probably go away if you do not use the parking brake.

[GT3.My]

I get that initial struggle and pop noise too, IF I've washed the car the day before and not given it a hard drive after to dry things out. Though I have no idea why the moisture would cause the brake/handbrake components to 'stick'.

Similarly, I've noticed that if I haven't had the chance to drive it for a week or two, some fuel seems to pool somewhere because it makes a loud 'pop' sound (like how unburnt fuel detonates in the exhaust) once I'm outta the driveway and give it some throttle.

I wouldn't use the handbrake if I'm parked in the Pits in-between lap sessions, when the brakes really get up to temp but, beyond that I've not heard of nor experienced any need not to.