well what fun would that be.timelessbeing wrote:or going somewhere else.
on a serious note how often do you here of the clutches failing in these TC's i never thought about it until someone mentioned it recently
well what fun would that be.timelessbeing wrote:or going somewhere else.
I had to rebuild my NV136, ordered new clutch assembly, seals, etc and have the job done.timelessbeing wrote:The encoder motor isn't an ordinary motor like in a cordless drill. It's not driven by steady current.
Your transfer case isn't part-time 4WD. It's an active on-demand unit, that automatically sends just the right amount of power, at the right time, to the front wheels through a clutch. The clutch is actuated by the encoder motor, but a simple on/off switch is not precise enough to deliver little bits of torque. Instead, the motor is regulated by the transfer case control module (TCCM) which sends a pulse width modulated (PWM) signal thousands of times per second (think ABS). Putting a steady current to the encoder motor would be like pulling the trigger on your cordless and then stopping it from turning.
More sophisticated transfer cases like the NV236 do allow you to switch to 4WD. To do this, the encoder motor closes the clutch and then locks. Current to the motor can then be turned off.
Not sure how I missed this post way back when... although I think a defeat switch doesn't provide any real benefits so probably wasn't following it... but I did find this video interesting.timelessbeing wrote:Check out the inferior AWD systems on these SUV's from off-shore companies.
http://www.youtube.com/watch?v=t09ExAUgtyE