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  #1  
Old 01-21-2012, 02:52 AM
CANAMDiscovery's Avatar
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Default Transfer case seal repair Discovery II

Is there any way to replace the faulty transfer case seal without dropping the entire case? The Rave CD in its description says the case need to come off the truck.
The local Rover mechanic seemed sure that the case would NOT need to be completely removed.
I am fairly handy with a manual with the proper tools but this is a job I will leave to them.
Just wondering if I should be prepared that the case will need to come off adding to the number of hours they will be charging me for?
Has anyone completed the job themselves? Degree of difficulty?
I was thinking of replacing the top end gaskets (down the valley/pan gasket) and let the pros do the transfer case.
Cheers
2001 Discovery SE 110,000.
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  #2  
Old 01-21-2012, 08:39 AM
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Would depend on what is leaking. Rear seal you just have to drop the drive shaft. Bottom plate is maybe a heat shield and wiggle around parking brake cable. Front seal would need TC to come out. There are seals on top as well. See attached from RAVE.

Lot of guys run 85W150 heavier oil to quiet older units, and leak slower. Bet some White Shepard would help.

Also, check you breather line. See attached. It terminates in a banjo bolt, the bolt is hollow, it and/or the line gets plugged with mud, and oil fumes build up pressure and leak through seals. Also does this on the axles. Pix of gunked up bolt that was cleaned out.
Attached Images
File Type: jpg P1030613.jpg (24.8 KB, 16 views)
Attached Files
File Type: pdf d2 xfr banjo bolt.pdf (586.4 KB, 8 views)
File Type: pdf d2 xfr case rear seal.pdf (374.4 KB, 11 views)
File Type: pdf d2 xfr case internal 1.pdf (759.3 KB, 8 views)
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D2 Bosch ECU manuals http://landroverforums.com/forum/dis...manuals-48009/


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  #3  
Old 01-21-2012, 03:09 PM
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How bad is the leak?

My TC seal was weeping and I pondered replacing it. But I drained it and refilled with RP 85w140 and the weeping had subsided. Might be an option for you. 2.2qt in the TC.
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2004 Discovery SE - TerraFirma 3" Lift w/ TF Steering stabilizer, TF rock slider w/ trees, TF diff guards, TF wheel spacers, Nitto Trail Grappler MT 285-65-18 LT tires, BajaRack w/OEM ladder, Tactical Rovers front winch bumper w/ Engo 9000S

**Awaiting install: Fox 2.0 Resivoir Adj shocks, RTE adj Panhard, TF HD Steering rods, Columbia Overland 1" spacers

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  #4  
Old 01-21-2012, 08:01 PM
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Go power scrub your t/case and see where the leak is coming from and get back to us.
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Retired service manager. Member of the Solihull Society, NCLR club, SCLR and Santa Barbara 4 Wheelers.

99 D2, 3" lift, CDL with a Detroit and T.T. lockers, H.D. axles, 4:11 gears, Custom front and rear bumpers, sliders, Warn winch, and 5 HID's.

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  #5  
Old 01-22-2012, 03:24 PM
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Smile

Already had the area cleaned up, dye added and leak spotted coming out of the main seal, depositing on the support crossbar.
I have known the case was leaking for about the last year...just noticing a drip or two on the driveway and the support bar always having some fluid on it.
I had recently driven the truck on a cross county drive and after the first day of driving about 1000 miles noticed considerably more fluid under the truck. The undercarriage from the transfer case back was nicely coated with oil... I mean COATED! Enough to make me worry a bit.
Needless to say I made it fine, just slowed it down and "limped in". I had the fluid topped off and leaked diagnosed about 2 months ago. Now leak is as it was before my travels and I drive the truck without any worries.
What should I pay to have the seal replaced? The independant guy is on hourly rate. What would it take to do the job? 4-5 hours worth of work to drop the case and replace seal?
Am I doing any damage to the case by not replacing the seal? Vibration? Or is the seal just to hold the fluid back? I assume that if I do not run the case dry, the case and parts attached to the case will be fine?
Thanks for the responses guys...
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  #6  
Old 01-22-2012, 03:45 PM
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I took some time to look at the White Shepperd stop leak and like to give it a try? 8 oz bottle should do it?
It would make my day if the stuff actually worked. I am in Cananda right now and hope I can find it here. Have it shipped if only available in the States.
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Old 01-22-2012, 03:45 PM
 
 
 
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01, 2004, case, changing, disco, discovery, front, gasket, ii, land, leak, oil, replace, replacement, rover, seal, transfer


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