Serious & Strange DC5R Driveline problem

[RoNi_SiZe]

Hi fellow Integra/Honda owners!

Symptoms: STRONG shutter originating from the front of the car, BUT not felt in the steering wheel, only between 80kms --> 110kms!!
ONLY shudders under acceleration, stops when u back off, and in neutral. Happens b/w 80-110kms in any gear, any rev range, hard or soft acceleration.

Parts Replaced/Services done so far: New Tyres, New Shocks (BC Camber-Adjustable Coil-overs), Wheel balancing (Done by Bob Jane), New Engine mounts (2 were cracked, done by yarra honda), Reconditioned Driveshafts and custom balancing of Driveshafts (done by Ward-While in box hill)

Latest Suspected problem/s: The car has been @ Ward-While for about 3 weeks, he's checked all the driveline bits he can think of. The LSD has now been cleared of any damage also.

Any have any ideas!??! or suffered same problem?!?!
Anyone who cracks this is a mechanical genius, coz as I said, it's been through 5 mechs, including Doncaster and Yarra Honda!

Cheers
~ Roni

[[RSX 03]]

torque steer?

[aaronng]

torque steer?

Not at 80-110.

[mugsee]

Does it shudder with a certain throttle position? ie. with cruising without throttle, with hard acceleration, with 10% throttle, etc.

Does it shudder if you neutral the car and roll during that period?

[Kiz_EG6]

Is it by any chance only in 3rd gear, going from the speed it is at??

Why were the engine mounts cracked in a car which is only a few years old?

I think you really need to have a look at the history of the car (i know that is probably difficult), maybe then you will get an idea of an accident or something which may have caused this!

[Drew]

Tried changing the disks and pads?

I seriously doubt it's the gearbox or LSD
That is generally a pretty common problem if the car has been driven hard; does the shudder get stronger, go away or doesn't change when you apply the brakes?

[RoNi_SiZe]

Thanks for the replies guys.

ONLY shudders under acceleration, stops when u back off, and in neutral. Happens b/w 80-110kms in any gear, any rev range, hard or soft acceleration. So by the time I take my foot off accel & brake, it's gone.

The mounts cracked, according to Ward While, b'coz the car was lowered, which cause the inner CV joint on the Driveshaft 2 lock up, causing vibration, which cracked the engine mounts. That's wat they think. Most probably coupled with hard driving.

I tried 2 get the history of the car, from the owner, Vicroads, and Honda Service records. None of these sources revealed any serious accidents or issues.

[Drew]

What if you're just cruising along?

[RoNi_SiZe]

Yeh in that speed range, just cruising along like tapping real light on the accelerator, it'll shudder significantly still, like if u were in the car, u can feel it shuddering. Of course the harder the accel the harder the shudder.

[Drew]

Swap the front and back wheels... then try swapping them diagonally and see if that changes anything at all
If you can get rims from someone else to try
Failing that change the disks and pads

Cheaper than pulling the gearbox to pieces

[T-onedc2]

^^^As above^^^ I'm thinking brakes rotors possibly, does it shudder under firm to hard braking also?

[i-vtec]

Can it possibly be the wheel bearing failing ?
I had a wheel bearing gone in the front left on a different vehicle and it would make a shuddering and eerie deep noise from 80km plus. Maybe try a suspension specialist and have them check it out. hope you get it sorted out