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  #11  
Old 01-06-2018, 10:58 AM
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MTC pipe works fine for over four years now, but only 20k miles during this time.
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  #12  
Old 01-06-2018, 11:27 AM
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The pipes can be refurbished. It only took off about 0.025mm of metal to make it to a mirror finish. A new o-ring will easily deal with that.

Notice I have a large socket and a drill adapter. I spun the pipe in my drill, I set the bottom of the pipe on some scotch bright between my feet and turned myself into a human lathe.

I used sandpaper initially, then scotch bright, then I used a soft fingernail file and that removed any hint of corrosion.

Finally I used rubbing compound to buff to a mirror finish. Better than new and this pipe made it to 180,000 miles it will be it's only rework.
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  #13  
Old 11-30-2018, 11:43 AM
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Quote:
Originally Posted by andrewwynn View Post
The pipes can be refurbished. It only took off about 0.025mm of metal to make it to a mirror finish. A new o-ring will easily deal with that.

Notice I have a large socket and a drill adapter. I spun the pipe in my drill, I set the bottom of the pipe on some scotch bright between my feet and turned myself into a human lathe.

I used sandpaper initially, then scotch bright, then I used a soft fingernail file and that removed any hint of corrosion.

Finally I used rubbing compound to buff to a mirror finish. Better than new and this pipe made it to 180,000 miles it will be it's only rework.
Andrew, where did you find the new front seal? I can only find the pipe itself that comes with the seal on it. I would love to do the same thing and refurbish the pipe that is in there if I can find a new front seal. Was also wondering if BMW had changed the seal's material to viton or similar so I will only have to do this job once on this truck.

Edit: Just found that MTC makes one as well. Wonder if this one uses better seals?

https://www.ebay.com/itm/Engine-Cool...QAAOSw2C1al0aO
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  #14  
Old 11-30-2018, 11:47 AM
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Which coolant pipe? N62 content

I can't remember if I did get a new seal. I think I just beefed up the old seal with Teflon. We had a kit for redoing the chain guides it came with a lot of seals.


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  #15  
Old 11-30-2018, 11:52 AM
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Quote:
Originally Posted by andrewwynn View Post
I can't remember if I did get a new seal. I think I just beefed up the old seal with Teflon. We had a kit for redoing the chain guides it came with a lot of seals.
Hmmm... I might have to go with that MTC pipe over OEM. Can not find any information as to whether or not the seal has been redesigned. Did find one fairly recent post on a mechanic's forum that implied it hadn't, but nothing concrete.

You did this work on an M62?
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Nav, Pano, Sport (Purchased 06/14 w/ 109,000 miles) (Sold 8/15 w/121,000 miles)


2006 X5 4.8is Build 11/05 Maintenance/Build Log
Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles)

2010 X5 35d Build 02/10
Nav, HiFi, 6 DVD, Sports Pckg, Cold Weather Pckg, HUD, CAS, Running Boards, Leather Dash, PDC, Pano (Purchased 03/17 w/ 136,120 miles)
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  #16  
Old 12-04-2018, 05:02 PM
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I used this one last year. Itís the least amount of disassembly. It just slips into the leaking pipe.

The key is to thoroughly prep the area. Also, it only works on the front seal. If the rear is leaking, youíll need to do the whole pipe.

https://bimmerfix.com/?product=bimme...EaAofMEALw_wcB
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  #17  
Old 12-04-2018, 07:23 PM
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Which coolant pipe? N62 content

Quote:
Originally Posted by crystalworks View Post
Hmmm... I might have to go with that MTC pipe over OEM. Can not find any information as to whether or not the seal has been redesigned. Did find one fairly recent post on a mechanic's forum that implied it hadn't, but nothing concrete.

You did this work on an M62?


Yes on M62 motor. I'm looking for photo of the seal. I can't remember if I replaced the seal. I do remember that I was concerned the bare aluminum would let corrosion get under the seal from the outside so I actually ended up painting the end of the pipe other than the seal portion.





Found these pics above. I'm reminded that I used rtv outside the seal to keep the environment off of the bare aluminum. I think it's high odds I reused the original seal. It did not leak.
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  #18  
Old 12-04-2018, 07:34 PM
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Thanks Andrew for the info. Think I'll go with the mtc pipe AND use some permatex upon reassembly as a piece of mind measure. My seal is not leaking on the OE pipe currently. But if I am going to be in there doing vss, timing cover seals, etc... I might as well do it proactively.
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2005 X5 4.4i Build 04/05 Maintenance/Build Log
Nav, Pano, Sport (Purchased 06/14 w/ 109,000 miles) (Sold 8/15 w/121,000 miles)


2006 X5 4.8is Build 11/05 Maintenance/Build Log
Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles)

2010 X5 35d Build 02/10
Nav, HiFi, 6 DVD, Sports Pckg, Cold Weather Pckg, HUD, CAS, Running Boards, Leather Dash, PDC, Pano (Purchased 03/17 w/ 136,120 miles)
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  #19  
Old 12-04-2018, 07:55 PM
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Permatex is what I used I just cleaned and polished the original pipe before reinstalling.


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