viscous drive replacement - Defender Source
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  #1  
Old November 26th, 2008, 08:45 PM
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Matthew martin
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viscous drive replacement

I have had people tell me that the viscous is easilly replaced with out removing the radiator. I have done enought work on Rovers to realize nothing is that easy, and concidering the sources (guys at RN) they may have known a trick or two that escapes mere mortal shadetree mechanic like me.

So any tips, clues or heads up on doing this work would be much appreciated by me and I sense my knuckles!

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  #2  
Old November 26th, 2008, 09:18 PM
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remove upper shroud, using special tool or hack method, remove fan (noting which way is off on the fan) undue little bolts holding VC to fan.
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Old November 27th, 2008, 06:45 AM
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I didnt remove the fan shroud when I replaced mine. I put a bunch of rags in the drive belts and got a wrench on the VC gave it a whack and it came right off. I have a part number for a replacement I will try to locate if you need it.
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  #4  
Old November 27th, 2008, 08:35 AM
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Quote:
Originally Posted by evilfij
remove upper shroud, using special tool or hack method, remove fan (noting which way is off on the fan) undue little bolts holding VC to fan.

Upper shroud???

Are you thinking of a 1997 90 where the shroud is 2 pieces?

In a 1993-1995 you don't have to take the 1 piece shroud off, but it is only 4 screws to remove it so...
Make sure it goes back in the clips at the bottom when you put it back on.
Dead easy job if it isn't stuck.
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Old November 27th, 2008, 09:05 PM
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Matthew martin
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Okay - I'm on it, and $400 lighter....Damn British engineering... LOL!
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Old November 27th, 2008, 09:13 PM
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Quote:
Originally Posted by SIIA109
Okay - I'm on it, and $400 lighter....Damn British engineering... LOL!
$400???
I used a screwdriver and a big hammer. Placed it on the nut and whacked it.
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Old November 28th, 2008, 08:22 AM
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Quote:
Originally Posted by lynchee
$400???
I used a screwdriver and a big hammer. Placed it on the nut and whacked it.
Me too... I was skeptical, but it worked like a charm.
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Old November 28th, 2008, 09:36 AM
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A big open end wrench works too. Goes in on a little angle, but works every time.
We have the special tools, but none of the guys ever use them, they just use the wrench.
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  #9  
Old November 28th, 2008, 11:40 AM
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FWIW-viscous drive threads are lefthand
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Old November 29th, 2008, 06:47 PM
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Matthew martin
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So let me get this straight - there is nothing to replace? Then what is the RN part SKU: RND034 for $409.36?

Let me start at the begining - my fan is not engaged which leads to overheating. So "I was told" the viscous drive is shot and needs to be replaced. Is the VISCOUS DRIVE UNIT V-8 DEFENDER 90/110 part SKU RND034 is for that correct? Or am I missing something?
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Old November 29th, 2008, 07:25 PM
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Bad idea to pay RN for that. Heres the part I got from Autozone, matched the VC i took off which I assume is factory since there was only 68k on the one I replaced. I am typically one to buy only genuine parts but whatever the ungodly price Rovers North was asking ~70 from autozone with a lifetime warranty was well worth it. I know a lot of the serpentine belt guys are using a "HD" Chevrolet VC that "runs" a lot more than the factory VC.
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  #12  
Old December 1st, 2008, 07:49 AM
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Matthew martin
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Thanks Philip - you helped spread some cheer during this penny pinching times!
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  #13  
Old December 1st, 2008, 09:22 AM
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Quote:
Originally Posted by lynchee
$400???
I used a screwdriver and a big hammer. Placed it on the nut and whacked it.
LOL- did the same thing on my brothers tdi engine this weekend since neither of us showed up with the right wrench.
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  #14  
Old December 1st, 2008, 10:03 AM
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Make sure you know which way the bolt comes off. 3.9 you hit toward the drivers side and the 4.0 you hit toward the passenger side. If you get this wrong it can ruin you whole day.

Follow-up Post:

Phillip: Is that part number for the 3.9L?
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  #15  
Old December 1st, 2008, 02:13 PM
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"Are you thinking of a 1997 90 where the shroud is 2 pieces?"

Yes, sorry forgot the early ones were one piece, been a couple years since I had to do one and just stuck my head under Glenn's 1997 hood and my 1995 LWB.
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