Weird Question
Safety Car
Joined: May 2016
Posts: 4,650
Likes: 1,832
From: Erlanger, Kentucky
previous owner just put new calipers, rotors, pads, tires and wheels
Also, could check the brake rotor runout. If the rotors have too much runout, they may be rubbing on the pads and causing what you are feeling.
Racer
Joined: Jul 2011
Posts: 336
Likes: 115
I recently purchased a 2011 Grand Sport M6, here's my question. I have a long driveway, it's gravel and I travel slowly in first gear right about 1000 rpms and it feels like the brakes keep applying and releasing repeatedly, anyone experience anything like this before? 66k miles, no lights on, previous owner just put new calipers, rotors, pads, tires and wheels. I don't notice anything abnormal on the road. Thoughts?
Thread Starter
Instructor
Joined: Jul 2014
Posts: 159
Likes: 27
From: Anderson IN
Instructor
Joined: Sep 2015
Posts: 167
Likes: 33
From: TN
It only does it when your in gear, and it coasts smoothly when you push in the clutch?
i think you are going through the lash in the driveline. I think you are right at the threshold of putting down torque and engine breaking, and it feels weird when you go back and forth through the lash of all the gears. I think all manuals do that at very low speeds.
Either live with it or slip the clutch a lot more. Or make more definitive acceleration / coast maneuvers.
edit: if you have a lot of tight turns also read up on Acherman steering ... or some spelling like that. Corvettes have kind of a different steering geometry and they scrub the tires pretty aggressively at low speeds high steering angle.
i think you are going through the lash in the driveline. I think you are right at the threshold of putting down torque and engine breaking, and it feels weird when you go back and forth through the lash of all the gears. I think all manuals do that at very low speeds.
Either live with it or slip the clutch a lot more. Or make more definitive acceleration / coast maneuvers.
edit: if you have a lot of tight turns also read up on Acherman steering ... or some spelling like that. Corvettes have kind of a different steering geometry and they scrub the tires pretty aggressively at low speeds high steering angle.
Last edited by luka2sb; Jul 31, 2019 at 04:05 AM.
