back end jumping around on bumps - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

wren240sx · 01-23-2003, 01:35 PM

some lady hit me in the rear passenger side of my car, and bent ruca. i replaced it and it fixed the wheel caster almost completely, but whenever i go over bumps the back jumps to the left a little. any ideas? i hope its not a twisted frame. i looked at it and it only looked like the ruca got bent. any ideas on fixes? other then goin to alignment shop?

Dousan_PG · 01-23-2003, 01:40 PM

go get an alignemt. did you get one after you changed the bent rod? if not then you should. that's probably why.

you can find shops that'll do it for like 40 bucks

*DSC* · 01-23-2003, 01:45 PM

What's a ruca?

It didn't bend what ever it attaches to did it?

Alignment is always the easiest and cheapest troubleshooting step when solving handling problems...next to a visual inspection anyway.

s13rookie · 01-24-2003, 12:40 AM

probably wrong , but figuring RUCA means rear upper control arm

mrtn240 · 01-24-2003, 06:45 AM

my 93 did the same thing you're stating yours does, I replaced the rear shocks and everything was perfect again

wren240sx · 01-24-2003, 07:56 AM

errr this is gettin crappy. some of the problem was 2 loose lug nuts. had to replace one of the lug studs cuz it got stripped, and i broke the other one. the one that got stripped out before is stripped again. im goin to go replace them again and get an alignment.

wren240sx · 01-24-2003, 08:00 AM

Quote:

Originally posted by DSC
What's a ruca?

It didn't bend what ever it attaches to did it?

a ruca is a rear upper control arm for the multilink suspension on 240s. it would be pretty hard to bend the frame that way considering the frame is steel and the ruca is some type of weak alloy, i think its mild steel. not sure

Diablo · 01-25-2003, 11:09 AM

I had the same problem with the tail coming out.

Push down hard on the boot of the car and then let go. The car should bounce back up once and come to a halt. If it continues to bounce up and down, you're in need of new shocks.

elevator · 01-27-2003, 09:32 PM

Sounds like the shocks got damaged. It shouldn't bounce like that and that is exactly what will happen if they are bad. You sure don't want the back of the car to try to catch up with the front of the car unless you are doing it intentionally.

01-23-2003, 01:35 PM	#1
wren240sx Leaky Injector Join Date: Jan 2003 Location: gulfbreeze, fl Age: 42 Posts: 102 Trader Rating: (0) Feedback Score: 0 reviews	back end jumping around on bumps some lady hit me in the rear passenger side of my car, and bent ruca. i replaced it and it fixed the wheel caster almost completely, but whenever i go over bumps the back jumps to the left a little. any ideas? i hope its not a twisted frame. i looked at it and it only looked like the ruca got bent. any ideas on fixes? other then goin to alignment shop? __________________ 1991 240sx se red w/ big #$* dent in it!! 5 speed injen cai apexi n1 dual unorthadox pulley set oh yeah and a blown motor

01-23-2003, 01:40 PM	#2
Dousan_PG Post Whore! Join Date: May 2002 Location: Orange County, California Age: 46 Posts: 16,640 Trader Rating: (23) Rides Gallery: Dousan_PG Feedback Score: 23 reviews	go get an alignemt. did you get one after you changed the bent rod? if not then you should. that's probably why. you can find shops that'll do it for like 40 bucks __________________ Aaron Pink GodziRa www.geocities.com/pink_godzira

01-23-2003, 01:45 PM	#3
DSC New Title Join Date: Aug 2001 Location: VA Posts: 3,454 Trader Rating: (0) Feedback Score: 0 reviews	What's a ruca? It didn't bend what ever it attaches to did it? Alignment is always the easiest and cheapest troubleshooting step when solving handling problems...next to a visual inspection anyway. __________________

01-24-2003, 12:40 AM	#4
s13rookie Zilvia FREAK! Join Date: Mar 2002 Location: connecticut Age: 44 Posts: 1,129 Trader Rating: (0) Feedback Score: 0 reviews	probably wrong , but figuring RUCA means rear upper control arm __________________ Ive spent most of my money on cars and women...the rest i wasted

01-24-2003, 07:56 AM	#6
wren240sx Leaky Injector Join Date: Jan 2003 Location: gulfbreeze, fl Age: 42 Posts: 102 Trader Rating: (0) Feedback Score: 0 reviews	errr this is gettin crappy. some of the problem was 2 loose lug nuts. had to replace one of the lug studs cuz it got stripped, and i broke the other one. the one that got stripped out before is stripped again. im goin to go replace them again and get an alignment. __________________ 1991 240sx se red w/ big #$* dent in it!! 5 speed injen cai apexi n1 dual unorthadox pulley set oh yeah and a blown motor

01-24-2003, 06:45 AM	#5
mrtn240 Join Date: Aug 2002 Posts: 19 Trader Rating: (0) Feedback Score: 0 reviews	my 93 did the same thing you're stating yours does, I replaced the rear shocks and everything was perfect again

01-25-2003, 11:09 AM	#8
Diablo Join Date: Jan 2003 Location: South Africa Age: 40 Posts: 12 Trader Rating: (0) Feedback Score: 0 reviews	I had the same problem with the tail coming out. Push down hard on the boot of the car and then let go. The car should bounce back up once and come to a halt. If it continues to bounce up and down, you're in need of new shocks.

01-27-2003, 09:32 PM	#9
elevator Zilvia Addict Join Date: Jan 2003 Age: 72 Posts: 855 Trader Rating: (0) Feedback Score: 0 reviews	Sounds like the shocks got damaged. It shouldn't bounce like that and that is exactly what will happen if they are bad. You sure don't want the back of the car to try to catch up with the front of the car unless you are doing it intentionally.