Was this transmission wiindup?
Submitted: Monday, Feb 14, 2011 at 22:52
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Member - Fred L (NSW)
Any Nissan patrol owners,
Just got back from the Victorian Alps and had a problem with the Nissan Patrol going down the very steep tracks.
Occasionally there would be a loud clang underneath (I thought more from the rear) and then a very brief loss of traction. The vibration ran right though the car/truck. I was driving in LO 1st or 2nd. Could this have been transmission wind up as I can't come up with any other explanation? The tracks were dead straight when it happened. The tracks were both smooth clay as
well as soft gravel
Please help me out?
Reply By: Wayne (NSW) - Monday, Feb 14, 2011 at 23:11
Monday, Feb 14, 2011 at 23:11
Fred,
Did you have the front hubs in Auto or Lock?
I have known the front hubs to unlock if they are left in Auto. this would give you the bang and the loss of traction.
I have found when doing any low range work in a Patrol it is better to have the hubs locked.
BTW I don't own a Patrol but I hope this helps with you question.
Wayne
AnswerID:
445467
Follow Up By: Dave(NSW) - Monday, Feb 14, 2011 at 23:23
Monday, Feb 14, 2011 at 23:23
I think Wayne has got it in one, The Patrols Auto hubs are
well known to unlock at the most inconvenient times, It's always better to manually lock you hubs in when doing any 4wding. Also
check this site out
http://www.patrol4x4.com/forum/ plenty of info there.
Cheers Dave..
FollowupID:
717739
Follow Up By: Patrol22 - Tuesday, Feb 15, 2011 at 08:33
Tuesday, Feb 15, 2011 at 08:33
Yep this could be it....although I never experience the problem going downhill I did when climbing.....half up the southern exit of Gunshot in 2001 when it happened it cost me a successful crossing :-) ended up having to use the winch. I eventually fitted AVM manual hubs because I also wanted to be able to use 2WD low range on steep hard surfaces when dragging the boat and camper around.
FollowupID:
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Follow Up By: Member - Fred L (NSW) - Tuesday, Feb 15, 2011 at 10:20
Tuesday, Feb 15, 2011 at 10:20
Thanks all for the info. The hubs were in auto. I have looked at the Patrol website and there was nothing specific about heading down a steep dirt
hill. I was surprised that I could not just idle down under what was a very torquey situation actually I could except for the loud 'clang' which scared the xxx out of me.
Cheers
FollowupID:
717768
Follow Up By: Robin Miller - Tuesday, Feb 15, 2011 at 10:43
Tuesday, Feb 15, 2011 at 10:43
Agree with others above, usually just slips a cog and grabs again as they wear whenever excess pressure is on them.
What you can do Fred, to verify is swap the hubs over and problem will happen less downhill (for a while).
They are essentially non-repairable.
I love the auto hubs and when mine got to bad (220,000km) I brought some from a wreckers off a sub 100,000km wreck for $80.
FollowupID:
717771
Follow Up By: Member - Fred L (NSW) - Tuesday, Feb 15, 2011 at 20:30
Tuesday, Feb 15, 2011 at 20:30
What you say makes sense but what doesn't make sense is the fact that I have only done 100,000km. Ummmm!
FollowupID:
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Follow Up By: Member - Christopher P (NSW) - Wednesday, Feb 16, 2011 at 21:53
Wednesday, Feb 16, 2011 at 21:53
Hi if they are aisin hubs you can swap them out for a lockable pair. around 100 dollars for the units. a pair or not, i could be out on the price.. sorry don't touch nissin.
my replacements after bashing them to death came of a ford courier 4wd.
FollowupID:
718017
Reply By: Michael ( Moss Vale NSW) - Tuesday, Feb 15, 2011 at 13:18
Tuesday, Feb 15, 2011 at 13:18
Patrol22!! A good point about the manual hubs and 2 wheel drive low range...
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AnswerID:
445510
Follow Up By: Member - Murray R (VIC) - Tuesday, Feb 15, 2011 at 22:05
Tuesday, Feb 15, 2011 at 22:05
Michael
Patrol22's comment about using 2wd low range is a good one to remember, I have used this method quite a few times on steep inclines on black top when I've had my camper on and run out of puff in 2wd hi. Its just one advantage of a 4wd.
Murray
PS: Probably not bad idea when reversing a caravan in a tight spot either.
FollowupID:
717845
Reply By: kiwicol - Tuesday, Feb 15, 2011 at 13:45
Tuesday, Feb 15, 2011 at 13:45
Same thing can happen to manual hubs, have had it happen to me.
Took a long time to figure out the problem.
New set and problem solved.
Col
AnswerID:
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Reply By: Member -Dodger - Tuesday, Feb 15, 2011 at 15:25
Tuesday, Feb 15, 2011 at 15:25
I also changed my Patrol auto hubs for Manual AVM hubs.
This allows low range on sealed road for reversing the van in or out of tight spots. Also very handy for take off (manual box) on steep inclines whilst towing.
AnswerID:
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Reply By: JR - Tuesday, Feb 15, 2011 at 17:05
Tuesday, Feb 15, 2011 at 17:05
Hubs shouldnt release when going fwd, certainly can though. For sure the auto hubs release in reverse BUT you can lock them in manually and they wont release unless busted.
Id be leaning towards wind up, smooth clay and rocks are a good place to do it, possibly shouldnt have been in 4WD or at least disengage more often
Steering usually gets very tight and engine labours when it winds up
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