Car rocks after applying hand brake

370zBoyz · 12-10-2020, 08:02 PM

Hello, I have the 7AT nismo

When I put the car into park and then pull up the handbrake and release the brake pedal it rocks forward in place

Similar to just putting the car in park without the handbrake and releasing the break pedal...it does that little back and forth rocking motion

I did test out the handbrake on a uphill in neutral and it holds the car in place but just wondering if the handbrake mechanism is somewhat loose and needs tightening ? Anyone else experience this and is this normal or not?

If I put it into neutral first then pull up the handbrake and then put it in park it is fine

Thanks everyone.

Spooler · 12-10-2020, 08:13 PM

Sounds normal. The parking paw has to catch in the tranny.

redondoaveb · 12-10-2020, 08:38 PM

There's nothing inside the handbrake assembly itself that can be adjusted or tightened.

jchammond · 12-10-2020, 08:49 PM

It ‘ont sounds right

Don’t recall my old one ever doing that...seems like it stayed put

Park brake adjustment screws are behind rear wheels...in rotor holes (I think), been a while since I’ve had one apart; planning to be disassembling one by Christmas Holidays

JARblue · 12-10-2020, 09:15 PM

Quote:

Originally Posted by jchammond

Park brake adjustment screws are behind rear wheels...in rotor holes (I think), been a while since I’ve had one apart; planning to be disassembling one by Christmas Holidays

There is a hole in the rear drum. May or may not have a rubber plug in it. Shine a light in and you'll see a little star nut adjuster sitting perpendicular to the opening in the drum. Use a flathead screwdriver to adjust the tension in the parking brake. Click the adjuster down to tighten the parking brake and up to loosen it. Tighten it all the way and then back it off a few clicks.

DIY: Fix your crappy Parking Brake...make it work!

Rusty · 12-10-2020, 11:02 PM

There is a star wheel inside the disc rotor to adjust the parking braking. When I installed my long wheel studs. I adjusted my parking brake.

POS VETT · 12-11-2020, 05:31 AM

That sounds normal for parking on an incline with parking brake engaged (regardless of the shifter position). The rear suspension will move up (when parking uphill) or down (when parking downhill) caused by the effect of leverage in the suspension geometry. The amount of movement depends also on how stiff the springs are, but the leverage is the same regardless.

In my own practice of parking an automatic vehicle as follows:

1. Engage service brake and hold
2. Shift to Neutral
3. Engage parking brake
4. Release service brake
5. Shift to Park

Number 2 and 3 can be reversed for the same result.

12-10-2020, 08:02 PM	#1 (permalink)
370zBoyz Base Member Join Date: Oct 2013 Location: Driver seat Posts: 207 Drives: Nismo Rep Power: 7213	Car rocks after applying hand brake Hello, I have the 7AT nismo When I put the car into park and then pull up the handbrake and release the brake pedal it rocks forward in place Similar to just putting the car in park without the handbrake and releasing the break pedal...it does that little back and forth rocking motion I did test out the handbrake on a uphill in neutral and it holds the car in place but just wondering if the handbrake mechanism is somewhat loose and needs tightening ? Anyone else experience this and is this normal or not? If I put it into neutral first then pull up the handbrake and then put it in park it is fine Thanks everyone. Last edited by 370zBoyz; 12-10-2020 at 08:04 PM.

12-10-2020, 08:13 PM	#2 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 13,507 Drives: 2013 Nismo 370z Rep Power: 2684391	Sounds normal. The parking paw has to catch in the tranny. redondoaveb likes this.

12-10-2020, 08:38 PM	#3 (permalink)
redondoaveb A True Z Fanatic Join Date: Apr 2017 Location: So. Commiefornia Posts: 6,297 Drives: 2014 Nismo Gunmetal Rep Power: 2684374	There's nothing inside the handbrake assembly itself that can be adjusted or tightened. jchammond likes this. __________________ Fast Intentions "Stage Seb" twin turbo #098- Specialty Z/Tial-Xonarotor/CJM/Ecutek/HKS/KW/SPL/Hotchkis/Rohana/Toyo 700+whp

12-10-2020, 08:49 PM	#4 (permalink)
jchammond A True Z Fanatic Join Date: Nov 2014 Location: South Carolina Age: 57 Posts: 15,204 Drives: 13’ 370Z TS 7A/T Rep Power: 2684394	It ‘ont sounds right Don’t recall my old one ever doing that...seems like it stayed put Park brake adjustment screws are behind rear wheels...in rotor holes (I think), been a while since I’ve had one apart; planning to be disassembling one by Christmas Holidays JARblue, redondoaveb and Zingston like this. __________________ MazWorx built long block \| FI-TT-100 Stage 2.75 \| IPT built 7A/T http://www.the370z.com/members-370z-...s-musings.html

12-10-2020, 11:02 PM	#6 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 68 Posts: 34,860 Drives: 2011 Nismo GM 6M Rep Power: 2684436	There is a star wheel inside the disc rotor to adjust the parking braking. When I installed my long wheel studs. I adjusted my parking brake. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

12-11-2020, 05:31 AM	#7 (permalink)
POS VETT Track Member Join Date: Apr 2015 Location: Columbus OH Posts: 612 Drives: Z34\|C4LT4\|C6Z06\|V25 Rep Power: 3366	That sounds normal for parking on an incline with parking brake engaged (regardless of the shifter position). The rear suspension will move up (when parking uphill) or down (when parking downhill) caused by the effect of leverage in the suspension geometry. The amount of movement depends also on how stiff the springs are, but the leverage is the same regardless. In my own practice of parking an automatic vehicle as follows: 1. Engage service brake and hold 2. Shift to Neutral 3. Engage parking brake 4. Release service brake 5. Shift to Park Number 2 and 3 can be reversed for the same result.

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