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manualy forcing standard hubs to lock

  • mkay
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30 Nov 2010 19:12 #6840 by mkay
iv been reading the old threads, and for the winter i am going to force the hubs into the locked possition.

can i get some clarification on how to do this?

and will they stay locked? or do i need to take measures to keep them locked? id rather not have to play with them again until spring.

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30 Nov 2010 20:09 #6847 by mlines
Just follow this guide

CLICK HERE and when you have pulled the ring forward then tuck something underneath it to stop it sprining back

Martin

Martin

2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses

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  • biggaz
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30 Nov 2010 20:23 #6849 by biggaz
Replied by biggaz on topic Re: manualy forcing standard hubs to lock
hi, what will this do and why? what benefits?

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30 Nov 2010 20:33 #6852 by mlines
It will jam the hubs in the lock position which is what the original poster wanted to do.

Martin

2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses

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  • mkay
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30 Nov 2010 20:38 #6853 by mkay
thanks martin, i hadnt found that guide. what would you recommend putting behind it?

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  • biggaz
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01 Dec 2010 14:46 #6884 by biggaz
Replied by biggaz on topic Re: manualy forcing standard hubs to lock
Sorry, this would keep it in 4wd? What about all this on transmission wind up or am i getting this wrong lol

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01 Dec 2010 14:51 #6885 by mlines
biggaz,

Your half right.

Locking the hubs locks them to the front driveshafts and prop. Therefore they will now be turning all the time when you are moving. This will increase fuel consumption and slightly stiffen the steering.

However the transfer box controls whether the front prop is connected to anything. Therefore in 2WD the front prop is still disconnected (despite turing because the front wheels are locked and turning) therefore wind up doesn't occur.

When you select 4WD the system is all locked together and yes, wind up will occur if the surface is not slippery enough

martin

Martin

2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses

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  • mkay
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01 Dec 2010 16:22 #6894 by mkay
when i take the hubs off, are they liable to fall apart? lots of little clips and springs etc or are they quite safe, they look so in the photo?

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01 Dec 2010 16:39 #6896 by ooky_123
easy to do ... Just did ours as the vac system failed this year and I havnt got around to fitting the manual hubs yet.
just undo the 6 bolts and take the hub off ... then with finger .. lock the inner into the splines in the outer and refit. 10 min job each side.
No bits to fall out either.

Former owner of Little "Ooky", who has now started a new life in Shetland

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  • biggaz
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01 Dec 2010 17:02 #6899 by biggaz
Replied by biggaz on topic Re: manualy forcing standard hubs to lock
Cheers martin, totally understand now. Thanks!

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  • doncarlyon
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01 Dec 2010 21:40 #6921 by doncarlyon
Replied by doncarlyon on topic Re: manualy forcing standard hubs to lock
so is it a common fault that the vacuum system fails?

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02 Dec 2010 11:44 #6935 by ooky_123
i guess the real question is "is the vacuum system up for the task" .. the answer is generally no.
seals perish and its easy to block the filters on the actuators.. all these go towards the vacuum system failing.

Many people opt for manual hubs.. sure you have to get out and lock them manually, but you know they are locked and are not relying on listening for that telltale "Ping" and the 4x4 light on the dash.

As Martin documented, you can lock the front hubs and just use the Transfer lever to select between 2 wheel drive and 4 wheel drive. This does add drag on the car as you are turning the front drive shafts, diff and front prop shaft....

I have manual hubs but I need to overhaul them, so the easiest way for me to keep the Jimny working was to Lock the front Hubs and ignore the flashing 4x4 warning light because I know 100% that when I select 4x4, it really is sending drive to all wheels.

Former owner of Little "Ooky", who has now started a new life in Shetland

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