Centre Diff - so i think i have a problem.
Started by Tim., Jul 01 2013 04:23 PM
Centre Diff i have a problem
16 replies to this topic
#1
Tim.
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Posted 01 July 2013 - 04:23 PM
Ok, so lately i've been hearing noises and i'm thinking the issue is related to Centre Diff. My car is a Manual 2001 Liberty RX with TT conversion.
The symptoms are:
- Low speed full lock turns in carparks, there is a slight clunking and the car sort of lurches
- Only happens when car is warm, ie. you've been driving a while. Not noticeable when cold
- No issues when driving straight or cornering.
Things my mechanic has done recently to try fix this issue: Front CVs, Wheel Bearings and hubs replaced.
Drivetrain is out of a 1999 JDM Legacy RSK
Has anyone had a similar issue in the past or care to diagnose over the interweb?
#2
Delete This Account
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Posted 01 July 2013 - 04:44 PM
It's forked.
Wouldn't have happened in a real B4, Timmy. 
#3
Tim.
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Posted 01 July 2013 - 04:46 PM
Haha! If I had wanted a response as helpful as that, I would've PM'd you Tom.
Real B4's have aids.
#4
Staxta
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Posted 01 July 2013 - 05:18 PM
My gen 2 had a similar problem, it would clunk once warm, my problem was with the rear diff though.
#5
Dimeb4g
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Posted 01 July 2013 - 10:35 PM
its called torque bind in autos.... google torque bind on SLI.net and the like and see what happens....
1st 1990 Nissan Pulsar Q. What a rocket!
2nd: Gen 2 RX... Loved and lost...
3rd: 1995 Toyota Corolla which drove from Cairns to Bunbury in 5 Days! 6610km!!! didnt miss a beat.
4th: Gen1 GX bought for $500 went like stink... looked like what caused the stink
5th: More civilized now... with a Heritage Wagon... now gone...
6th Mitsubishi KJ Verada..."its nothing like a suby" now gone...
7th: 2002 B4 Liberty TT....
8th: MY04 Subaru Liberty GT Premium Pack Wagon
JLG Photographics Swimwear, Portrait, Commercial and Automotive Photography.www.jlgphotographics.com
#6
Tim.
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Posted 02 July 2013 - 08:05 AM
So yeah pretty sure it's a diff. It's just a question of which one.
Not sure if torque bind is the cause as it seems to affect the 4eat automatic transmissions.
Not sure if torque bind is the cause as it seems to affect the 4eat automatic transmissions.
#7
sbv
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Posted 02 July 2013 - 08:55 AM
Pretty certain it's your centre diff, especially if its really only when doing a sharp turn at low speed. Your description sounds spot on.
#8
Samwise
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Posted 02 July 2013 - 09:02 AM
I have this, had it for a couple of years now.
Ben (Ichiban) thinks centre diff.
Should probably fix it haha...
Ben (Ichiban) thinks centre diff.
Should probably fix it haha...
I like to think of it as borrowing someone's car and driving it better than them.
#9
vicelore
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Posted 02 July 2013 - 09:07 AM
I get it allot but ive got a early DCCD box with no auto(Off switch)
I did hear allot of stuff about auto`s and it being a easy fix..
#10
bmack_01rx
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Posted 02 July 2013 - 12:52 PM
My folks had this same problem in their 2001 Outback. apparently to fix it you need to change the oil in a chamber somewhere around the centre diff / gearbox location (Dad wasn't exactly sure where it is). But the problem is the chamber is sealed and thus you need to buy a whole replacement unit.
I guess this isn't going to help much if I don't know what it's called but that's how my folks got theirs fixed.
#11
Tim.
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Posted 02 July 2013 - 12:57 PM
Yes, the Viscous Coupling, which is also called a Centre Diff. It is a sealed unit and therefore is not serviceable.
#12
Matty_Lib
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Posted 02 July 2013 - 02:47 PM
IIRC The centre diff can be pulled down and the viscous coupling and gears can be removed for inspection/replacement. But the coupling itself isn't serviceable.
#13
vicelore
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Posted 02 July 2013 - 02:48 PM
And is expensive.. Piece of shit they are..
#14
Tim.
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Posted 02 July 2013 - 03:21 PM
Sounds about right.
29 in the image:
#15
vicelore
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Posted 02 July 2013 - 03:36 PM
Ive herd about buying it from the states as they are allot cheaper.
#16
Matty_Lib
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Posted 02 July 2013 - 04:12 PM
If your viscous coupling is the problem you're having, I may have a spare if you need it. Out of a gen 1 liberty box, but I'm unsure on compatibility.
#17
Tim.
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Posted 02 July 2013 - 05:22 PM
There is a Phase 1 which is up to 1998 and Phase 2 which is 1999 onwards.
So i'll be needing a Phase 2. Thanks for the offer.
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