AWD: 850: - 850 AWD drive probs

demonicwillow · Feb 13th, 2008, 20:30

My transfer box is on its last legs and i heard it can be removed to allow the car to be a 2 wheel drive, anyone know of any issues or difficulties in removing it, also gotta oil leak in that area probably turbo oil return is that just a hose job???

Dmw

Muscas · Feb 14th, 2008, 21:08

How do you know the T/F box is on the way out?

You might get away with not removing the T/F box, try removing the main drive shaft, held on by 8 hex bolts either end, easy to remove on a ramp.

Patrick

demonicwillow · Feb 16th, 2008, 21:22

I am not 100% on the t/f case as i havent really gotten that far, I took the prop off and alot of the noise and vibration has eased, im certain there is a bearing on its way out in there and hopefully the bevel gears are still good, but i dont know how the power gets to the t/f case.

Muscas · Feb 19th, 2008, 19:12

The drive to the T/F box comes directly from the gearbox.

demonicwillow · Mar 1st, 2008, 16:25

Im gonna remove the transfer box drive shaft, does anyone know if I have got to drain out any oil from the box to do this.

Dmw

Clan · Mar 1st, 2008, 16:30

don't forget you are modifying the vehicle in effect affecting its original specification for the worse .. , the insurance may not be too happy ..

demonicwillow · Mar 1st, 2008, 17:14

I have already taken off the prop ages ago so I dont think its an actual modification, but if i dont disconnect the box then its all gonna break.
But i cant see where to start, Im totally lost on this one.
Is anyone able to explain how to remove the main shaft on /in the transfer box so i can drive it, would be a great help

Thanks Dmw

zaskar · Mar 1st, 2008, 18:46

What you are doing could backfire big time! As clan said, insurance wont be happy especially if you spin off the road due to lack of traction and cause an accident.

Anyway, you wont be able to remove the transfer box or drive to it because then you wont have drive to your RH wheel. Have your symptoms gone completely since removing the prop? if so, how do you know the problem isnt the prop or rear diff? The rear diff will still be turning with no prop. Be careful with what you are doing and consider getting it checked out properly

demonicwillow · Mar 1st, 2008, 19:35

A lot of people have had the awd disconnected because of a catastrophic failure in the transfer box.

After finding an exploded drawing of the transfer box and drive train im begining to understand how its put together.

When the front left wheel is raised if you drive the car then the car tries to drive off the back wheels, so the front right drive shaft must go thru the beval gear and its shaft to the diff, if it was driven off just the right shaft then in theory if the left wheel is on a real slippery surface and spinning it wouldnt move defeating the point of AWD, so by removing the beval gear and the shaft its pressed onto, i can still drive it, but its pulling it apart that is the problem, but i did find a short previous post regarding how to do it sort of.

Thanks for the mentioning it though.

Dmw

Feb 13th, 2008, 20:30	#1
demonicwillow yer-tis ! Last Online: Aug 16th, 2008 12:46 Join Date: Mar 2007 Location: Bridgend View Photos By: demonicwillow	850 AWD drive probs My transfer box is on its last legs and i heard it can be removed to allow the car to be a 2 wheel drive, anyone know of any issues or difficulties in removing it, also gotta oil leak in that area probably turbo oil return is that just a hose job??? Dmw __________________ I used to be a kleptomaniac .... now I'm taking something for it .. PS, If you go any slower, you'll pass yourself on the way back!!

Feb 14th, 2008, 21:08	#2
Muscas Master Member Last Online: Jul 5th, 2022 23:50 Join Date: Dec 2002 Location: Bettystown View Photos By: Muscas	How do you know the T/F box is on the way out? You might get away with not removing the T/F box, try removing the main drive shaft, held on by 8 hex bolts either end, easy to remove on a ramp. Patrick __________________ 1999 Phase 3 V70R 2.4 AWD, Lazer Blue, 1 of 33 UK cars Owned by myself for the past 19 years Only Phase III in Ireland? 1994 Volvo 480ES 2.0i (In and out of Roadworthiness) 2017 Toyota Land Cruiser, daily car

Feb 16th, 2008, 21:22	#3
demonicwillow yer-tis ! Last Online: Aug 16th, 2008 12:46 Join Date: Mar 2007 Location: Bridgend View Photos By: demonicwillow	I am not 100% on the t/f case as i havent really gotten that far, I took the prop off and alot of the noise and vibration has eased, im certain there is a bearing on its way out in there and hopefully the bevel gears are still good, but i dont know how the power gets to the t/f case. __________________ I used to be a kleptomaniac .... now I'm taking something for it .. PS, If you go any slower, you'll pass yourself on the way back!!

Feb 19th, 2008, 19:12	#4
Muscas Master Member Last Online: Jul 5th, 2022 23:50 Join Date: Dec 2002 Location: Bettystown View Photos By: Muscas	The drive to the T/F box comes directly from the gearbox. __________________ 1999 Phase 3 V70R 2.4 AWD, Lazer Blue, 1 of 33 UK cars Owned by myself for the past 19 years Only Phase III in Ireland? 1994 Volvo 480ES 2.0i (In and out of Roadworthiness) 2017 Toyota Land Cruiser, daily car

Mar 1st, 2008, 16:25	#5
demonicwillow yer-tis ! Last Online: Aug 16th, 2008 12:46 Join Date: Mar 2007 Location: Bridgend View Photos By: demonicwillow	Im gonna remove the transfer box drive shaft, does anyone know if I have got to drain out any oil from the box to do this. Dmw __________________ I used to be a kleptomaniac .... now I'm taking something for it .. PS, If you go any slower, you'll pass yourself on the way back!!

Mar 1st, 2008, 16:30	#6
Clan Experienced Member Last Online: Today 09:51 Join Date: Jun 2007 Location: L/H side	don't forget you are modifying the vehicle in effect affecting its original specification for the worse .. , the insurance may not be too happy .. __________________ My comments are only based on my opinions and vast experience .

Mar 1st, 2008, 17:14	#7
demonicwillow yer-tis ! Last Online: Aug 16th, 2008 12:46 Join Date: Mar 2007 Location: Bridgend View Photos By: demonicwillow	I have already taken off the prop ages ago so I dont think its an actual modification, but if i dont disconnect the box then its all gonna break. But i cant see where to start, Im totally lost on this one. Is anyone able to explain how to remove the main shaft on /in the transfer box so i can drive it, would be a great help Thanks Dmw __________________ I used to be a kleptomaniac .... now I'm taking something for it .. PS, If you go any slower, you'll pass yourself on the way back!! Last edited by demonicwillow; Mar 1st, 2008 at 17:33.

Mar 1st, 2008, 18:46	#8
zaskar Member Last Online: Sep 22nd, 2009 18:06 Join Date: Dec 2007 Location: york	What you are doing could backfire big time! As clan said, insurance wont be happy especially if you spin off the road due to lack of traction and cause an accident. Anyway, you wont be able to remove the transfer box or drive to it because then you wont have drive to your RH wheel. Have your symptoms gone completely since removing the prop? if so, how do you know the problem isnt the prop or rear diff? The rear diff will still be turning with no prop. Be careful with what you are doing and consider getting it checked out properly

Mar 1st, 2008, 19:35	#9
demonicwillow yer-tis ! Last Online: Aug 16th, 2008 12:46 Join Date: Mar 2007 Location: Bridgend View Photos By: demonicwillow	A lot of people have had the awd disconnected because of a catastrophic failure in the transfer box. After finding an exploded drawing of the transfer box and drive train im begining to understand how its put together. When the front left wheel is raised if you drive the car then the car tries to drive off the back wheels, so the front right drive shaft must go thru the beval gear and its shaft to the diff, if it was driven off just the right shaft then in theory if the left wheel is on a real slippery surface and spinning it wouldnt move defeating the point of AWD, so by removing the beval gear and the shaft its pressed onto, i can still drive it, but its pulling it apart that is the problem, but i did find a short previous post regarding how to do it sort of. Thanks for the mentioning it though. Dmw __________________ I used to be a kleptomaniac .... now I'm taking something for it .. PS, If you go any slower, you'll pass yourself on the way back!!

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