Transmission Lock Up - 2.8 Patrol

Submitted: Tuesday, Aug 12, 2003 at 22:14
ThreadID: 6537 Views:1657 Replies:6 FollowUps:3
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In a recent post comment was made regarding selection of 4wd with hubs out?

As I have have a steep driveway the only way I could reverse up the slope was to either wait until the engine was hot then use plenty of revs and slip the clutch a bit OR select low range and sedately reverse up even with a cold motor.
Problem was the kink in the drive which caused transmission to tighten up (felt like the handbrake was on) and also required back and forth movement to disengage 4wd.
To cut a long story short, converted to manual hubs (approx $200) and now have low range 2wd which is also real handy when trying to fit the Tvan in a tight spot ie.like every time we get home.
Been using this setup for 6 months and really pleased with the difference - definitely no adverse effects on hubs etc. and gets around what is basicly a turbo lag problem ie no revs no guts. Sons 3 ltr Patrol has no problem at all.

Happy Travelling
Bob
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Reply By: basecamp15 - Wednesday, Aug 13, 2003 at 11:03

Wednesday, Aug 13, 2003 at 11:03
I do this when launching my boat. Low range gives more control down the slope. My 4.2 Patrol already had manual freewheeling hubs so I'm laughin.
Good to see you all have Nissans in the family!!!
AnswerID: 27716

Follow Up By: Member - Bob L - Thursday, Aug 14, 2003 at 19:54

Thursday, Aug 14, 2003 at 19:54
Please help me with this one. Does your Nissan Manual mention use of low range with hubs out ?
Many thanks
Bob.
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FollowupID: 19285

Reply By: phil - Wednesday, Aug 13, 2003 at 16:39

Wednesday, Aug 13, 2003 at 16:39
I had a Rodeo a while ago and had to repair the front hubs. Looking at the way it is designed it appeared that when the hub is not engaged there is no support for the axle shaft. This could lead to premature wear of seals and other parts in the hub if used in 4WD with the hub out because the axle will be rotating without support.
Phil
AnswerID: 27749

Reply By: haze - Thursday, Aug 14, 2003 at 08:18

Thursday, Aug 14, 2003 at 08:18
Definately go with Phil on this one. It will bugger up the seals as the axle is just flopping around with the action of the rotating cv joint. For wriggling in and out of tight spots with a van, put a (removable) towball on the front bumper/ bullbar. You will find you can turn the van nearly 90deg. in almost its own length.(you going forward, pushing the van backward) And its a lot easier on the neck too!
cheers haze
AnswerID: 27839

Reply By: basecamp15 - Saturday, Aug 16, 2003 at 17:39

Saturday, Aug 16, 2003 at 17:39
Fair call.
I don't consider what I do too much of a problem though as I'm reversing about 20 metres in low first every now and then so I reckon it would be hard to do any damage revsing down a boat ramp in low range.
AnswerID: 28111

Follow Up By: Member - Bob L - Saturday, Aug 16, 2003 at 19:07

Saturday, Aug 16, 2003 at 19:07
Seriously, was there any mention of using 4wd with hubs out in your manual?. My Patrol comes standard with auto hubs so my manual will not apply to this situation.
If you look at Phil's comments he mentions that the axle end is not supported with hubs out?. Ive had a good look at my old auto hubs and found that the axle splines fit into a well mounted bearing and the locking mechanism appears to function between the bearing walls and the wheel hub.
Maybe Jackeroos are different.
After experiencing Transmission lockup, strange noises from the auto hubs as they disengage and excessive use of clutch in high range etc I agree with you that there is less chance of causing damage (if any) in the the use of low range/2wd.
cheers
Bob
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FollowupID: 19464

Reply By: basecamp15 - Saturday, Aug 16, 2003 at 22:16

Saturday, Aug 16, 2003 at 22:16
I'll check the manual and get back to you.
Cheers, Mark
AnswerID: 28128

Follow Up By: basecamp15 - Sunday, Aug 17, 2003 at 11:22

Sunday, Aug 17, 2003 at 11:22
Just reading it now. Interesting point that it says to drive the first 500 km of the vehicles life in 2H with the free wheeling hubs locked. Guess that sums it up.
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FollowupID: 19495

Reply By: basecamp15 - Sunday, Aug 17, 2003 at 11:36

Sunday, Aug 17, 2003 at 11:36
Righto. It says to never drive in 4 wheel drive with the hubs out. Also says to drive in 2WD with hubs locked for at least 16 km per month for proper lubrication of the front drive components, something I already do.
I had decided it was better to use low reverse,hubs out, for 20 metres down the boat ramp for the few times I do it as it was better than actual 4WD in case of transmission wind up (part time 4WD).
Maybe it's not.
AnswerID: 28171

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