New rotors temperature difference

[eliaskok]

Hello, few days ago i replaced brake pads and discs and i did everything exactly as i should like grease clean etc. (this is not the first time am doing something like this)

But for some reason there is a temperature difference between the front rotors (10-15 degrees) is this normal or is it something that i need to worry about? There is no smoke or pulling on one side.

Thanks

[andyiley]

Pardon my ignorance but, how did you come to the conclusion that there is a difference in disc temperature?

[eliaskok]

Infrared thermometer, is it normal for new pads and rotors?

[KungFuPanda]

Could be a sticking piston not retracting as fully as the other one when you release the brakes thereby causing slightly more friction on one disc and making it hotter than the other.

[KungFuPanda]

Could be a sticking piston not retracting as fully as the other one when you release the brakes thereby causing slightly more friction on one disc and making it hotter than the other.

[eliaskok]

i thought about it and it doesn't look like a sticking piston and the calliper slights fine as far as i can see. Also when i am driving i can't hear smell or feel anything different. I tried to jack up the car and spin the wheel and it spins fine. Any suggestions or advices?

[andyiley]

I would say 10 - 15 degrees is nothing, it could just be that one side is cooled slightly better.

Now if you had 100 degrees differential I would be looking for mechanical issues.

Give them a week or so to bed in & try again.

[eliaskok]

Okay thanks for the tip.

Also here are some pictures of the two rotors

[ch427]

you worry too much!
Dont think they would ever be identical temperatures, try a different car to compare.

[eliaskok]

Okay mate thank you very much. I just wanted to make sure that everything works fine.

[S0 What]

Drivers side the hotter of the 2 ?
LHD designed car with the fuel tank on the (now it's RHD) drivers side, pluss the driver equalls more energy to displace on that side?
possably a better airflow on the cooler side due to the road (camber kurbs ect) as long as it ulls up straigh i wouldn't worry TBH, IME one side allways wears faster than tother (i change a lot of pads with differing thicknesses from side to side).

[eliaskok]

S0 What said:

Drivers side the hotter of the 2 ?
LHD designed car with the fuel tank on the (now it's RHD) drivers side, pluss the driver equalls more energy to displace on that side?
possably a better airflow on the cooler side due to the road (camber kurbs ect) as long as it ulls up straigh i wouldn't worry TBH, IME one side allways wears faster than tother (i change a lot of pads with differing thicknesses from side to side).

Actually is a RHD car but the idea is the same and the tank is on the right as you said.

Good points and thanks for the help

[Snake the Sniper]

Just out of pure curiosity, why did get the thermometer out to check anyway?! Unless the car didn't pull up in a straight line, this would strike me as being more than a bit OTT.

[eliaskok]

Because when i first got my new rotors and brakes on, there was a smoke but that was because i didn't use brake cleaner and then i measured the temperature and there was a small difference, but not pulling at all and no smoke any more. It just smoked the first 15 miles after that nothing. Never had any dragging issues or anything.

I think now the temperature started becoming quite the same.