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Home > Technical > Drain Plug for PTU (Transfer case)
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p_gill



Member Since: 06 Dec 2011
Location: USA
Posts: 1236
United States 2008 Freelander 2 i6 SE Auto Tambora Flame

MotionInc wrote:

Interesting. Mine has not leaked from the get go.



Motion,

I don't think the comparison is exactly fair.


Stud size Recommended torque Clamping force
.....M6............4 ft-lbs.......................500 lbs
.....M8............9 ft-lbs.......................900 lbs
.....M10..........20 ft-lbs....................1500 lbs

Comparing your M10 to my M8 isn't exactly apples to apples.

Having said that I do think that is is fair to state that the M10 will be more forgiving for sealing the surface due to the greater clamping force.

I did think that I was going to have to drill out the threads and go to M10 but the O-ring has provided a very good seal and I am happy with the M8 now.

Take care

Paul
Post #410916 1st Aug 2021 7:31 pm
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MotionInc



Member Since: 17 Jun 2019
Location: North America
Posts: 1355
Canada 2008 LR2 i6 SE Auto Tambora Flame

Got it! I still think the M8 is a better fit Wink!
Post #410919 1st Aug 2021 9:26 pm
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p_gill



Member Since: 06 Dec 2011
Location: USA
Posts: 1236
United States 2008 Freelander 2 i6 SE Auto Tambora Flame

Motion,

No worries.

The M8 fits nicely in this location.

It looks like it came that way from the factory.



I am surprised that the PTU doesn't shed metal like the rear differential. I only collected a very small amount of metal dust so far. By comparison I would estimate that my Rear Differential is about 50X as much metal (which I have collected over the past 7 years)

For reference my Wife's BMW rear differential shed just as much metal as my LR2. I installed a magnet for her car based on what I've learned at FREEL2. The BMW forums don't talk about pinion bearings but that doesn't mean that they last 300K miles.


Thanks

Paul
Post #410986 2nd Aug 2021 11:02 pm
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