Tumbling/viabrating at 3500-4000rpm - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Birdman12 · 04-24-2007, 01:42 PM

Hey ive noticed that when i get up to about 3500-4000 it feels like the driveshaft is about to fall off or something there is this crazy rumble/tumble kind of sound and feeling comming from near the back of the car. It's especially bad when im on the highway because cruising speed is withing 3300-4000rpm for me on my sr20.

so any ideas? a couple friends said it might be the driveshaft mount or something or even a twisted driveshaft? it runs smooth in all rpm ranges except between around 3500-4000rpm. thanks.

Birdman12 · 04-24-2007, 01:44 PM

oh its a 92 hatch. hicas was diconnected and a lock-bar put on.

Z U L8R · 04-24-2007, 01:50 PM

could be the center bearing on the driveshaft coming apart, u need to get ur car in the air and take a look, i'm sure you'll visibly see what's going on

04-24-2007, 01:42 PM	#1
Birdman12 Join Date: Dec 2006 Location: Ottawa, Ontario, Canada Age: 36 Posts: 10 Trader Rating: (0) Feedback Score: 0 reviews	Tumbling/viabrating at 3500-4000rpm Hey ive noticed that when i get up to about 3500-4000 it feels like the driveshaft is about to fall off or something there is this crazy rumble/tumble kind of sound and feeling comming from near the back of the car. It's especially bad when im on the highway because cruising speed is withing 3300-4000rpm for me on my sr20. so any ideas? a couple friends said it might be the driveshaft mount or something or even a twisted driveshaft? it runs smooth in all rpm ranges except between around 3500-4000rpm. thanks.

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode

04-24-2007, 01:44 PM	#2
Birdman12 Join Date: Dec 2006 Location: Ottawa, Ontario, Canada Age: 36 Posts: 10 Trader Rating: (0) Feedback Score: 0 reviews	oh its a 92 hatch. hicas was diconnected and a lock-bar put on.

04-24-2007, 01:50 PM	#3
Z U L8R Zilvia FREAK! Join Date: Jan 2007 Location: Georgia Age: 43 Posts: 1,194 Trader Rating: (0) Feedback Score: 0 reviews	could be the center bearing on the driveshaft coming apart, u need to get ur car in the air and take a look, i'm sure you'll visibly see what's going on