Q45 Brake Problem - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Jung918 · 10-03-2006, 10:35 AM

s13 non-abs
Q45 rebuilt front calipers
5 lug rotors redrilled to 4 lug.
HPS Pads
SS Brake Lines

When I am going around 50 and press
on my brakes it feels like it is pulsating
and my steering wheel shakes. It
doesn't do it at low speeds. Is it
because the rotors are not balanced?

OptionZero · 10-03-2006, 11:04 AM

resurface rotors, balance the tires

Jung918 · 10-03-2006, 11:24 AM

I installed the Q45 brakes last night and drove it this morning. Rotors are Brand new and I didn't have any alignment problems before.

Jung918 · 10-03-2006, 03:18 PM

I looked around and it seems that either the rotors are not on the hub all the way or the holes are not centered. I didn't want to break in the pads becuase of the shaking, but I did and it is shaking a lot less. I am going to try to bed them in again and see what happens. Hopefully the problem goes away. If anyone else has a suggestion, please post.

zugoi · 10-03-2006, 03:41 PM

yeah i was gunna say your rotors are warped too being seeing as how they are brand new and the calipers are rebuilt..maybe you just have to break them in.

10-03-2006, 10:35 AM	#1
Jung918 Post Whore! Join Date: Oct 2003 Location: CA Posts: 3,203 Trader Rating: (2) Feedback Score: 2 reviews	Q45 Brake Problem s13 non-abs Q45 rebuilt front calipers 5 lug rotors redrilled to 4 lug. HPS Pads SS Brake Lines When I am going around 50 and press on my brakes it feels like it is pulsating and my steering wheel shakes. It doesn't do it at low speeds. Is it because the rotors are not balanced?

10-03-2006, 03:41 PM	#5
zugoi Zilvia Junkie Join Date: Aug 2003 Location: Bay area Posts: 560 Trader Rating: (0) Feedback Score: 0 reviews	yeah i was gunna say your rotors are warped too being seeing as how they are brand new and the calipers are rebuilt..maybe you just have to break them in. __________________ Drunk posting FTW!

10-03-2006, 11:04 AM	#2
OptionZero Post Whore! Join Date: Jul 2003 Location: Norcal Age: 41 Posts: 6,263 Trader Rating: (2) Rides Gallery: OptionZero Feedback Score: 2 reviews	resurface rotors, balance the tires

10-03-2006, 11:24 AM	#3
Jung918 Post Whore! Join Date: Oct 2003 Location: CA Posts: 3,203 Trader Rating: (2) Feedback Score: 2 reviews	I installed the Q45 brakes last night and drove it this morning. Rotors are Brand new and I didn't have any alignment problems before.

10-03-2006, 03:18 PM	#4
Jung918 Post Whore! Join Date: Oct 2003 Location: CA Posts: 3,203 Trader Rating: (2) Feedback Score: 2 reviews	I looked around and it seems that either the rotors are not on the hub all the way or the holes are not centered. I didn't want to break in the pads becuase of the shaking, but I did and it is shaking a lot less. I am going to try to bed them in again and see what happens. Hopefully the problem goes away. If anyone else has a suggestion, please post.