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Old 20th December 2012, 09:56   #31
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Default Re: Using 4L for Engine Braking/Torque with FWH Disengaged

Quote:
Originally Posted by Sutripta View Post
My (2 bits) take:
As long as the driver is sensible, keeps in mind his current limitations, and has a feel for the vehicle, 2L operation is not a problem.

Why (my thoughts only):
The maximum torque an axle shaft has to endure is that placed on it by the traction of the wheel (and in case it is accelerating, the (moment of) inertia of the wheel). Any more torque, and the wheel will loose traction and start spinning.
Add to this the fact that we normally use our jeeps as 4 wheeled motorcycles (ie hardly carrying any load), and that by itself the Jeep rear axle has hardly any weight on it (we normally do not cart around 1.6t payload), the maximum traction will be modest.
Plus we normally use low range not to send humungous torque to the wheels, but to send reasonable torque at very low road speeds, in the interests of better vehicle control and not to burn the clutches.

Regards
Sutripta
Dear Sutripta - you have summed up perfectly. However, a manufacturer will never recommend use of a system which does not meet the design criteria with minumum factor of safety for design life.

Best regards,

Behram Dhabhar
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Old 20th December 2012, 22:08   #32
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Default Re: Using 4L for Engine Braking/Torque with FWH Disengaged

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Originally Posted by DHABHAR.BEHRAM View Post
However, a manufacturer will never recommend use of a system which does not meet the design criteria with minumum factor of safety for design life.
True.
But here we are a bunch of enthusiasts airing our views. Not corporate lawyers (specialising in product liability issues) vetting the operation manual!

Regards
Sutripta
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