6MT Centre Differential Rebuild Project

Ask for help with doing something on your car here.

Re: 6MT Centre Differential Rebuild Project

Postby BillyCorgi » Sat Dec 12, 2015 11:28 pm

Just to clarify....
Are you after a centre differential for a 5MT or 6MT?
Get your Short Shift Adaptor viewtopic.php?f=68&t=30525
Get your Gear Shift Rejuvenation Kit viewtopic.php?f=68&t=31240
Get your Centre Differential Rebuild viewtopic.php?f=6&t=31089
Want a custom built Brake Cylinder Stopper? viewtopic.php?f=6&t=31321
Need to hire a Guard Rolling Machine? viewtopic.php?f=6&t=31899
Get your BillyCorgi's "Not-4-Wimps" Chilli Sauce
User avatar
BillyCorgi
 
Posts: 1588
Joined: Tue Aug 20, 2013 10:11 pm
Location: Bankstown Area, Sydney
Car: Liberty 3.0R-B Wagon E85 Flex Fuel
Real name: Peter
Profile URL: www.facebook.com/CorgiWerx

Re: 6MT Centre Differential Rebuild Project

Postby Daemos » Sun Dec 13, 2015 5:34 am

BillyCorgi wrote:Just to clarify....
Are you after a centre differential for a 5MT or 6MT?


6MT centre differential is what I am looking for. However, I am looking for something that has more lock than the 4KG but not too much to sacrifice road manners and low speed day to day stuff.
Daemos
 
Posts: 5
Joined: Thu Nov 14, 2013 11:13 pm
Car: 02 STI

Re: 6MT Centre Differential Rebuild Project

Postby BillyCorgi » Sun Dec 13, 2015 8:42 am

There are higher viscosity silicone fluids available.
There effect of an alternative viscosity fluid on the transfer torque through the differential would be guesstimation and trial & error (hit & miss?)
Then their final effect on the handling of your vehicle then follows a similar trial & error process until the transfer torque achieved meets your liking?
How the "level of liking" is achieved, by what process or subjective driving test, is undetermined at this point in time.
This could possibly mean taking the diff in and out a few times, rebuilding it, until it hits your sweet-spot.

The "fill-rate" for any alternative grade fluid could only presently be maintained as that the same for the standard initial fill, as that presently is all we have to go by.

I do not have numerous cores available and really need all of them back after exchange.

Suggest that you find a rotten 6MT core (so to speak) for your purpose.
Maybe put an appeal out through the forum to see if anyone had an old core for your needs. Else, contact some workshops to see if they have some dead cores.
Let me know what you think so far.
Get your Short Shift Adaptor viewtopic.php?f=68&t=30525
Get your Gear Shift Rejuvenation Kit viewtopic.php?f=68&t=31240
Get your Centre Differential Rebuild viewtopic.php?f=6&t=31089
Want a custom built Brake Cylinder Stopper? viewtopic.php?f=6&t=31321
Need to hire a Guard Rolling Machine? viewtopic.php?f=6&t=31899
Get your BillyCorgi's "Not-4-Wimps" Chilli Sauce
User avatar
BillyCorgi
 
Posts: 1588
Joined: Tue Aug 20, 2013 10:11 pm
Location: Bankstown Area, Sydney
Car: Liberty 3.0R-B Wagon E85 Flex Fuel
Real name: Peter
Profile URL: www.facebook.com/CorgiWerx

Re: 6MT Centre Differential Rebuild Project

Postby Daemos » Sun Dec 13, 2015 9:29 am

Thanks for the reply. I'll see what I can find, hopefully I can find something. I'd probably want something in the 8-10kg range.
Daemos
 
Posts: 5
Joined: Thu Nov 14, 2013 11:13 pm
Car: 02 STI

Re: 6MT Centre Differential Rebuild Project

Postby bigBADbenny » Sun Mar 06, 2016 7:47 am

Sent u a PM, Daemos. :)
User avatar
bigBADbenny
 
Posts: 8443
Joined: Tue Oct 04, 2011 6:36 pm
Location: Collingwood, Melbourne
Car: MY07 GT-B 6MT OBP Wagon
Real name: Ben Richards
Profile URL: http://tinyurl.com/agvbzop

Re: 6MT Centre Differential Rebuild Project

Postby BillyCorgi » Tue Mar 29, 2016 4:37 pm

Here awaiting your replacement Centre Differential requirements
Get your Short Shift Adaptor viewtopic.php?f=68&t=30525
Get your Gear Shift Rejuvenation Kit viewtopic.php?f=68&t=31240
Get your Centre Differential Rebuild viewtopic.php?f=6&t=31089
Want a custom built Brake Cylinder Stopper? viewtopic.php?f=6&t=31321
Need to hire a Guard Rolling Machine? viewtopic.php?f=6&t=31899
Get your BillyCorgi's "Not-4-Wimps" Chilli Sauce
User avatar
BillyCorgi
 
Posts: 1588
Joined: Tue Aug 20, 2013 10:11 pm
Location: Bankstown Area, Sydney
Car: Liberty 3.0R-B Wagon E85 Flex Fuel
Real name: Peter
Profile URL: www.facebook.com/CorgiWerx

UPDATE: 6MT Centre Differential Rebuild Project

Postby BillyCorgi » Sun Apr 17, 2016 7:37 pm

OKAY, Time for an Update.

Cliffo3rb contacted me about a Centre Differential Rebuild on Friday night.
The Centre Differential was delivered to me bright and early on Saturday morning.

The diff was pulled apart Saturday evening and was full of the usual black tar and encrusted coating of the overheated silicone typical of a binding Centre Diff.
Here it is after its first wash/clean to remove all the silicone fluid.

Image
gif image hosting

Next step after an air dry overnight was a second wash in detergents to remove any traces of oils.

Image
image upload no size limit

The reassembly process next is the reverse of the taking apart procedure.
Starting to fill the diff with new silicone fluid.

Image
img upload

Add plates.....

Image
images hosting

Add more plates.....

Image
imgurl

Let the fluid settle and locate Internal Thrust Washer.....

Image
img upload

Then seal the unit it up and put on Circlip.....

Image
upload gifs

There are some steps that have been very much over simplified and some other steps in the assembly process deliberately omitted as they are part of the Corgi IP.
However, there you are.
Cliffo3rb will have his Centre Differential back on Monday to reinstall in the gearbox of the Garage Queen!
Get your Short Shift Adaptor viewtopic.php?f=68&t=30525
Get your Gear Shift Rejuvenation Kit viewtopic.php?f=68&t=31240
Get your Centre Differential Rebuild viewtopic.php?f=6&t=31089
Want a custom built Brake Cylinder Stopper? viewtopic.php?f=6&t=31321
Need to hire a Guard Rolling Machine? viewtopic.php?f=6&t=31899
Get your BillyCorgi's "Not-4-Wimps" Chilli Sauce
User avatar
BillyCorgi
 
Posts: 1588
Joined: Tue Aug 20, 2013 10:11 pm
Location: Bankstown Area, Sydney
Car: Liberty 3.0R-B Wagon E85 Flex Fuel
Real name: Peter
Profile URL: www.facebook.com/CorgiWerx

Re: 6MT Centre Differential Rebuild Project

Postby Brunsy3.0 » Sun Apr 17, 2016 10:31 pm

Pretty efficient now. Smashing it out
Looks like you got it sorted
Top job as always
....THE WHITEWASH....
User avatar
Brunsy3.0
 
Posts: 1027
Joined: Tue Aug 30, 2011 7:01 pm
Location: Katherine, NT
Car: 07 3.0 Liberty Spec. B pearl white
Real name: Daniel
Profile URL: viewtopic.php?f=10&t=21059

Re: 6MT Centre Differential Rebuild Project

Postby BillyCorgi » Mon Apr 18, 2016 10:28 am

Brunsy3.0 wrote:Top job as always


Thank you Mr Brunsy.
As you were an important part of this project, your existing centre diff will be supported by me for the lifetime of your vehicle.
Cheers!
Get your Short Shift Adaptor viewtopic.php?f=68&t=30525
Get your Gear Shift Rejuvenation Kit viewtopic.php?f=68&t=31240
Get your Centre Differential Rebuild viewtopic.php?f=6&t=31089
Want a custom built Brake Cylinder Stopper? viewtopic.php?f=6&t=31321
Need to hire a Guard Rolling Machine? viewtopic.php?f=6&t=31899
Get your BillyCorgi's "Not-4-Wimps" Chilli Sauce
User avatar
BillyCorgi
 
Posts: 1588
Joined: Tue Aug 20, 2013 10:11 pm
Location: Bankstown Area, Sydney
Car: Liberty 3.0R-B Wagon E85 Flex Fuel
Real name: Peter
Profile URL: www.facebook.com/CorgiWerx

Re: 6MT Centre Differential Rebuild Project

Postby Brunsy3.0 » Mon Apr 18, 2016 12:01 pm

BillyCorgi wrote:
Brunsy3.0 wrote:Top job as always


Thank you Mr Brunsy.
As you were an important part of this project, your existing centre diff will be supported by me for the lifetime of your vehicle.
Cheers!


Hopefully wont need another rebuild/replacement in its lifetime although seems about the 150k interval haha
Appreciate it though
....THE WHITEWASH....
User avatar
Brunsy3.0
 
Posts: 1027
Joined: Tue Aug 30, 2011 7:01 pm
Location: Katherine, NT
Car: 07 3.0 Liberty Spec. B pearl white
Real name: Daniel
Profile URL: viewtopic.php?f=10&t=21059

Re: 6MT Centre Differential Rebuild Project

Postby BillyCorgi » Fri May 06, 2016 1:09 pm

UPDATE

(1) I have core ready to ship with 24 hours notice.

(2) There is now stock of 1,000,000 cSt silicone fluid.
Specials can now be produced with higher kg.F rating.

The silicone fluid viscosities can be blended by weight to produce a kg.F specification of your choosing.

(3) Why do the Centre Differentials fail?
Due you the effects of excess heat and age, the Silicone Fluid undergoes a process called "gelation".
This causes certain portion of the silicone fluid to go "gelly-like".
In this state, once the diff heats up and the silicone fluid become warm, the "gelly" prevents the clutch plates from slipping past each other as they normally would and the differential "binds".
The operation of the viscous coupling (and therefore the operation of the Centre Differential) is restored by fresh fluid.
Get your Short Shift Adaptor viewtopic.php?f=68&t=30525
Get your Gear Shift Rejuvenation Kit viewtopic.php?f=68&t=31240
Get your Centre Differential Rebuild viewtopic.php?f=6&t=31089
Want a custom built Brake Cylinder Stopper? viewtopic.php?f=6&t=31321
Need to hire a Guard Rolling Machine? viewtopic.php?f=6&t=31899
Get your BillyCorgi's "Not-4-Wimps" Chilli Sauce
User avatar
BillyCorgi
 
Posts: 1588
Joined: Tue Aug 20, 2013 10:11 pm
Location: Bankstown Area, Sydney
Car: Liberty 3.0R-B Wagon E85 Flex Fuel
Real name: Peter
Profile URL: www.facebook.com/CorgiWerx

Re: 6MT Centre Differential Rebuild Project

Postby BillyCorgi » Sun May 08, 2016 10:34 am

8th May 2016
6MT Centre Differential Available Ready to ship
CW38913AA112
Get your Short Shift Adaptor viewtopic.php?f=68&t=30525
Get your Gear Shift Rejuvenation Kit viewtopic.php?f=68&t=31240
Get your Centre Differential Rebuild viewtopic.php?f=6&t=31089
Want a custom built Brake Cylinder Stopper? viewtopic.php?f=6&t=31321
Need to hire a Guard Rolling Machine? viewtopic.php?f=6&t=31899
Get your BillyCorgi's "Not-4-Wimps" Chilli Sauce
User avatar
BillyCorgi
 
Posts: 1588
Joined: Tue Aug 20, 2013 10:11 pm
Location: Bankstown Area, Sydney
Car: Liberty 3.0R-B Wagon E85 Flex Fuel
Real name: Peter
Profile URL: www.facebook.com/CorgiWerx

Re: 6MT Centre Differential Rebuild Project

Postby bigBADbenny » Mon May 09, 2016 7:53 pm

Totally sick! Love the option to upgrade, tempted!!!
User avatar
bigBADbenny
 
Posts: 8443
Joined: Tue Oct 04, 2011 6:36 pm
Location: Collingwood, Melbourne
Car: MY07 GT-B 6MT OBP Wagon
Real name: Ben Richards
Profile URL: http://tinyurl.com/agvbzop

Re: 6MT Centre Differential Rebuild Project

Postby BillyCorgi » Sat Aug 13, 2016 1:14 pm

Hi All,

Been a while since an update has been posted.
Have not done many 5MT Centre Differentials, however have done a couple in the last two weeks.
The first one received (exchange) the unit that originally came out of Junior #2's Liberty Wagon. This was the unit that kicked off this centre differential rebuild project.

The second came from country Queensland.
Rebuilding the customer's own Centre Differential for them.
May I say that I have never (never, ever, ever) seen a Centre Differential Viscous Coupling like this.
Rather than pulling it apart and finding the clutch discs swimming in a foul smelling sticky viscous silicone fluid, it was SOLID. Not a drop of liquid to be found.
The diff would have been seized solid.
The clutch discs literally had to excavated out of the solid muck.
You can see the solid parts in the bottom of the pan.

Image gif hosting
Image image upload with preview
Image image hosting no register

The Clutch Disc Pack was ruined were not able to be rebuilt.
A replacement Clutch Disc Pack was required.

I do not know how the car was driven?
Get your Short Shift Adaptor viewtopic.php?f=68&t=30525
Get your Gear Shift Rejuvenation Kit viewtopic.php?f=68&t=31240
Get your Centre Differential Rebuild viewtopic.php?f=6&t=31089
Want a custom built Brake Cylinder Stopper? viewtopic.php?f=6&t=31321
Need to hire a Guard Rolling Machine? viewtopic.php?f=6&t=31899
Get your BillyCorgi's "Not-4-Wimps" Chilli Sauce
User avatar
BillyCorgi
 
Posts: 1588
Joined: Tue Aug 20, 2013 10:11 pm
Location: Bankstown Area, Sydney
Car: Liberty 3.0R-B Wagon E85 Flex Fuel
Real name: Peter
Profile URL: www.facebook.com/CorgiWerx

Re: 6MT Centre Differential Rebuild Project

Postby tom_kauf » Sat Aug 13, 2016 1:39 pm

:shock: WOW
[Stealth & Speed - Comfort & Practicality]: My 2008 MY09 GT SpecB Wagon - Manual 185,000km
User avatar
tom_kauf
-stickered-
 
Posts: 1341
Joined: Thu Sep 26, 2013 1:05 pm
Location: Brisbane, QLD
Car: 2008 Liberty GT SpecB Manual Wagon
Real name: Tom

PreviousNext

Return to How do I?

Who is online

Users browsing this forum: No registered users and 3 guests