Gen4 possible LSD problem! Help
Posted: Fri Mar 29, 2013 4:08 pm
Hello all,
I recently bought a '1994 Gen4 Honda Prelude 2.2 Si vtec LSD' to work on as a project. I am also using it as my everyday car.
Yesterday it started making a horrible clattering/chattering noise under low rev deceleration. The noise kind of spins up when I slow down and the engine reaches low revs, then fades down once I either get back on the throttle, or come to a complete standstill.
The noise only occurs when the vehicle is in motion - slowing down at low revs to be specific, and can happen whether the brakes are being applied or not. Coincidentally, the noise is exactly the same regardless of whether the brakes are being applied or not.
The clattering is also accompanied by what I can only describe as a 'background electrical whining'.
Perhaps most importantly, the 'spinning up' & 'winding down/fading away' characteristics are not consistent with either engine speed, or wheel speed. But the sound seems to be coming more from the r/h/s of the vehicle. Possibly close to the right front wheel. Car is R/H/D if this makes any difference.
Now, I don't know much about how LSD's work, hence my post. But the reason I believe it to be a problem relating to the LSD, is that it sounds like how I'd expect it to sound if I could hear it working. It sounds like it's working correctly, just one of the internal components is grinding, or worn out.
It sounds like gears grinding, or if you were to spin up a cog of sorts really fast, then touch it with a piece of metal or plastic.
My best guess would be a problem with overrun, and something relating to the coupling perhaps?
I really don't know much about LSD's, so I could be completely wrong about this. But either way, it doesn't sound healthy.
*It may be worth noting that the ABS light is on. I would assume that the brake pads are just low because the brakes feel a bit spongy, and perhaps slightly out of balance. But no brake related warning indicator noise to speak of. The only reason I mention it, is that where as far as I know the brakes have nothing to do with the operation of a LSD, is it conceivable that it could in some way be interfering with the normal operation of the system? Or does that simply confuse matters further? Just throwing it out there.*
Does this problem sound familiar to anybody? Is there something else obvious that it could be?
Any help would be gratefully received.
Thanks
I recently bought a '1994 Gen4 Honda Prelude 2.2 Si vtec LSD' to work on as a project. I am also using it as my everyday car.
Yesterday it started making a horrible clattering/chattering noise under low rev deceleration. The noise kind of spins up when I slow down and the engine reaches low revs, then fades down once I either get back on the throttle, or come to a complete standstill.
The noise only occurs when the vehicle is in motion - slowing down at low revs to be specific, and can happen whether the brakes are being applied or not. Coincidentally, the noise is exactly the same regardless of whether the brakes are being applied or not.
The clattering is also accompanied by what I can only describe as a 'background electrical whining'.
Perhaps most importantly, the 'spinning up' & 'winding down/fading away' characteristics are not consistent with either engine speed, or wheel speed. But the sound seems to be coming more from the r/h/s of the vehicle. Possibly close to the right front wheel. Car is R/H/D if this makes any difference.
Now, I don't know much about how LSD's work, hence my post. But the reason I believe it to be a problem relating to the LSD, is that it sounds like how I'd expect it to sound if I could hear it working. It sounds like it's working correctly, just one of the internal components is grinding, or worn out.
It sounds like gears grinding, or if you were to spin up a cog of sorts really fast, then touch it with a piece of metal or plastic.
My best guess would be a problem with overrun, and something relating to the coupling perhaps?
I really don't know much about LSD's, so I could be completely wrong about this. But either way, it doesn't sound healthy.
*It may be worth noting that the ABS light is on. I would assume that the brake pads are just low because the brakes feel a bit spongy, and perhaps slightly out of balance. But no brake related warning indicator noise to speak of. The only reason I mention it, is that where as far as I know the brakes have nothing to do with the operation of a LSD, is it conceivable that it could in some way be interfering with the normal operation of the system? Or does that simply confuse matters further? Just throwing it out there.*
Does this problem sound familiar to anybody? Is there something else obvious that it could be?
Any help would be gratefully received.
Thanks
