Center Diff Housing

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Center Diff Housing

Postby Bldnut01 » Tue Nov 13, 2018 4:07 pm

Hey guys hoping somebody has done this b4 so I'm changing my center diff in my 6MT Liberty and all good except I cant get the housing to go that last 5mm it makes it up to the locating pins but that's it, and not sure about giving it a few love taps have put 2 bolts in on either side and tightened but just doesn't feel right cheers
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Re: Center Diff Housing

Postby bigBADbenny » Tue Nov 13, 2018 4:13 pm

If you’re reinstalling the refurbished gearbox and are having trouble mating it to the engine:

I used ratchet straps to pull or push the box, also slung through the door apertures for support, and remove the pitch stop mount and lift the engine on the mounts to get the

If you’re installing the refurbed gearbox, you may be hung up on the input shaft spline.
Look it up but iirc you’ll need to turn the engine over a wee bit from the crank pulley/balancer, or turn the box in iirc a higher gear from the tailshaft end... to get it to click into the input splines.
Last edited by bigBADbenny on Wed Nov 14, 2018 5:45 pm, edited 1 time in total.
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Re: Center Diff Housing

Postby Bldnut01 » Tue Nov 13, 2018 4:43 pm

Up to the install part and did turn the front wheels to not much effect and for gear lever/ shaft is all the way out to rear of car atm cheers
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Re: Center Diff Housing

Postby bigBADbenny » Tue Nov 13, 2018 8:09 pm

If you’re reinstalling the front diff into the gearbox, see Corgiwerks comments below...

If you’re reinstalling the refurbed gearbox to the engine:

https://www.iwsti.com/forums/drivetrain ... ement.html

You want to turn the box or engine a bit, or change the angle of the engine, so the splines can match up and seat together.

If you have extra mating force from the bolts already installed, back them off a bit to give the assy some breathing space.

Iirc if the box is in a high gear, the unput is less likely to rotate when you turn the crank.

Rather than forcing it all together, you're trying to get both ends inline and offer them up.
Last edited by bigBADbenny on Wed Nov 14, 2018 5:47 pm, edited 1 time in total.
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Re: Center Diff Housing

Postby BillyCorgi » Tue Nov 13, 2018 9:28 pm

Hi, this is Peter from CorgiWerx.
If you are trying to refit the Transfer Gear Housing after changing the Centre Diff the DO NOT FORCE IT!
It should glide on.

The 6MT Centre Diff has small gear on the nose of the centre diff that engages and drives the oil pump.
When trying to refit the transfer gear housing the centre diff can move and the gear disengage.
What you may be feeling is the gears out of mesh and refusing to remesh.
Force it and you will bend the mating gear on the pil pump amd may even bend the shaft of the oil pump.

If this is the case, contact us on the CorgiWerx Facebok page
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
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Re: Center Diff Housing

Postby bigBADbenny » Wed Nov 14, 2018 2:24 am

Thanks mate, I was on the wrong track!
I’ll make some edits above to reflect that :)
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Re: Center Diff Housing

Postby Bldnut01 » Wed Nov 14, 2018 7:22 am

Cheers guys, the way I have been installing it is I put those split bearings on the shaft that goes to front wheels and then slide the diff over and home it then put the rear shaft into the housing and then try and slide it all together, have wedged a block between trans a trans tunnel so I can keep it square. How do I know if it in a high gear where should the gear slide shaft be? thanks going to remove and change spark plugs so will try and rotate enginge with few out.
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Re: Center Diff Housing

Postby BillyCorgi » Wed Nov 14, 2018 10:22 am

Sorry, I could not reply from work.

This is the procedure that I follow.....

Use grease to adhere the four half-shell roller bearings to the shaft on the gearbox.
Insert the centre diff and wiggle it clockwise - counter clockwise to ensure that the gear on the centre diff meshes in with the gear on the oil pump.
(Note, MY2009 models on do not have an oil pump nor gear)
Then, with the centre diff fully inserted use a marking pen to mark a witness line on the body of the centre diff.
This witnesss line will help you see if the diff has moved with the possiblity of the oil pump gears disengaging.

I have the yoke from a rear prop shaft as a service tool.
The yoke helps hold the Transfer Driven Gear in the correct spot.

The rear cover is prepared with a bead of silicone sealant.
Insert the Yoke into the output of the rear cover
Insert the Transfer Driven Gear into the rear cover and into the yoke.
Ensure the shim washers are corectly filtted onto the shaft of the Transfer Drive Gear.

Carefully lift the rear cover offering it to the back of the gearbox.
Feed the Transfer Drive Gear onto the shaft in the centre of the centre diff and align the rear housing with the gear shift selector shaft.
Guide the rear cover on.
While doing so, check the witness mark made on the side of the cnetre diff and ensure that the diff does not nove out and disengage the oil pump gears.
As the cover aproaces the rear of the gearbox case, twidle the yoke to ensure that the Transfer Drive Gear and the Transfer Driven Gear mesh properly.

Then nip up the 10 off M10 bolts sequentially arround the rear of the rear cover.
Torque up to 36 foot-pound.

If any resistance is felt when tightening the bolts BEFORE the cases come together, STOP.
If the oil pump gears are meshed and the transfer gears are meshed, there will be no resistance.

Hope that this helps!
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
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Re: Center Diff Housing

Postby BillyCorgi » Wed Nov 14, 2018 4:56 pm

P.S. As it sounds like you are not fitting a CorgiWerx Centre Diff, what do you plan to do with the old unit?
CorgiWerx is looking for dead 6MT diff cores for rebuilding as rotable spares stock.
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: 1804
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


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