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Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 5386
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Re: Re:


quote:

Bertoknee wrote:
Im guessing that it may be a fluid temperature issue in the clutch assy ..since front side of that clutch would be stationary and rear side would be moving?.



This would be my reasoning also.
Thinking about how the 4WD clutch works, even though there is no drive transmitted in 2WD mode, the tailshaft is always rotating through the pinion gear of the transmission and so is the rear differential. This means there is a SLIGHT rotational difference across the clutch pack when there is a speed difference but otherwise both sides should be at the same rotational speed, though there is no forced coupling.

When towing with the rear wheels on the ground there would be a LARGE rotational difference of speeds across the clutch pack which it may not be designed for.

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Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
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25/Nov/2018, 11:35 am Link to this post Send Email PM   Send Private Message Blog
 
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Date Registered: 09-2018
Location: Philippines
TOTAL POSTS: 71
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Re:


[sign in to see URL] to make sense now ...so although the rear diff is engaged by an electrically actuated clutch ...there is some kind of viscous action going on in there too? Meaning ... no matter what you do in the way of pulling fuses, removing relays, disconnecting [sign in to see URL] there is a difference in speed between front & rear ..then there is likely to always be some torque getting transferred?.... to the detriment of the rear diff!!

Last edited by Bertoknee, 25/Nov/2018, 12:38 pm


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Graeme, Cagayan Valley, PH
T31 Series 2 2011 2.5 CVT 4WD
X-5534
25/Nov/2018, 12:27 pm Link to this post Send Email PM   Send Private Message Blog
 
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Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 5386
Reply | QUOTE
Re: Towing an X-Trail T31


If you needed to tow the Xtrail with the rear wheels on the ground then a suggestion is to disconnect and remove the tailshaft.
This allows the rear diff and 4WD clutch pack (which will be rotating) to be isolated from the front drive pinion (which will be stationary) and theoretically everything should be OK, but should be tested.

---
Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
My Blog
My CarPC Worklog
25/Nov/2018, 2:45 pm Link to this post Send Email PM   Send Private Message Blog
 


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