Break and shaking up

Read at your own risk.

Moderator: Mike Simanyi

Mysto Gan
Posts: 9
Joined: Thu Mar 01, 2018 8:07 pm

Break and shaking up

Postby Mysto Gan » Mon Mar 05, 2018 8:00 pm

I have a question for my car that sometimes whenever I break my car is shaking up. What do you think is the cause of this problem?

User avatar
George Schilling
Club Representative
Posts: 5094
Joined: Thu May 15, 2008 11:26 am
Club: CASOC
Car#: 66
Location: Lakewood, CA

Re: Break and shaking up

Postby George Schilling » Mon Mar 05, 2018 10:07 pm

Mysto Gan wrote:I have a question for my car that sometimes whenever I break my car is shaking up. What do you think is the cause of this problem?


Sounds like a classic case of unbalanced washing machine syndrome. Consult Kowalski's Machine Shop. He has much experience with cars breaking and shaking up.
CASOC Autocross Club, 1984 Van Diemen RF-84, 1600cc Kent, Hewland Mk9, Centerline 2 pc. wheels, Hoosier R25B, SuperTrapp, Zimmer Alloclassic titanium left hip w/Metasul LDH chromium-cobalt lg dia head

Jacob Abrams
Posts: 4
Joined: Sat Jul 08, 2017 3:50 pm
Car#: 728

Re: Break and shaking up

Postby Jacob Abrams » Mon Mar 05, 2018 10:28 pm

George Schilling wrote:
Mysto Gan wrote:I have a question for my car that sometimes whenever I break my car is shaking up. What do you think is the cause of this problem?


Consult Kowalski's Machine Shop. He has much experience with cars breaking and shaking up.


Lol.


If the car is only shaking when you apply the brakes, and the effect is amplified at speed, then you most likely have a brake rotor or two worn out. Have the rotors checked and worn ones replaced and you should be good to go.

Eric Wong
Posts: 53
Joined: Thu Jul 20, 2017 11:57 pm
Car#: 900

Re: Break and shaking up

Postby Eric Wong » Tue Mar 06, 2018 12:54 am

Check your lug nut torque, loose ones can also cause this.

If you have new brake rotors or pads, they could be insufficiently bedded-in:
http://stoptech.com/technical-support/t ... pad-bed-in

Paul Molina
Posts: 25
Joined: Mon Nov 28, 2016 11:57 am
Club: CASOC
Car#: 274

Re: Break and shaking up

Postby Paul Molina » Tue Mar 06, 2018 11:25 am

Do you feel it in the brake pedal? Could be warped rotors?

Mark Haubert
Posts: 1
Joined: Fri Mar 02, 2018 3:09 am

Re: Break and shaking up

Postby Mark Haubert » Thu Mar 15, 2018 1:15 am

I get slight shaking when accelerating, but only when it's cold and the car has been outside for a long time. It goes away after the initial hundred meters or so. What might be causing this?

Eric Wong
Posts: 53
Joined: Thu Jul 20, 2017 11:57 pm
Car#: 900

Re: Break and shaking up

Postby Eric Wong » Fri Mar 16, 2018 1:30 pm

Mark: cars need to warm up, especially as they get older and parts begin wearing out, small gaps get bigger. Metal expands as it gets hotter, so gaps get filled in and there's less vibration.

User avatar
Christine Grice
King of Fastrack!
Posts: 1879
Joined: Thu May 15, 2008 11:26 am
Club: CASOC
Car#: 17

Re: Break and shaking up

Postby Christine Grice » Fri Mar 16, 2018 4:53 pm

Cold/old tires on a car that has been sitting in one spot for a little while can take a set in their non-round condition and it takes a little bit of driving to get them to flex and warm up enough to get rid of the slightly flat area.
~Christine Grice
2006 Mitsubishi Evolution, Berry Family Racing/Hoosier/ChaseCam


Return to “Off Topic”

Who is online

Users browsing this forum: No registered users and 6 guests