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      01-10-2015, 04:20 PM   #67
Dackelone
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Quote:
Originally Posted by gap View Post
My friend changed out the front seal Sunday and took off a little more material to get a little extra clearance from the exhaust. He also took a picture of the magnetic drain plug that is covered after just 30 miles. Will change the oil at 1,000 miles but will probably check the magnet again before then.
I have noticed a very faint whine while decelerating in gear, doesn't bother me at all.
Sounds like you did not follow the "take it easy" break-in procedure for the first 1,200 miles. When you drive WOT or at high speeds(more than 170 kph) a slight whine and decell is what you get. That noise will always be there now. Probably will get louder over time.
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      01-10-2015, 09:52 PM   #68
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Quote:
Originally Posted by Dackelone View Post
Sounds like you did not follow the "take it easy" break-in procedure for the first 1,200 miles. When you drive WOT or at high speeds(more than 170 kph) a slight whine and decell is what you get. That noise will always be there now. Probably will get louder over time.
Have been taking it easy for the first couple hundred miles and definitely not over 170 kph.
I think the noise is more from the M3 sub-frame bushings and e46 M3 transmission mounts transmitting more sound. It is very faint and I only noticed it since I was consciously listening for it. Hope you are wrong about it getting louder with time, happy with the way it is now.

This is the Mfactory break-in procedure from their website;

"Do I need to break-in your gears?
Our gears are fully finished and ready to run right out of the box. However, we do highly recommend that an initial fluid flush be performed after 3-400miles or 1 tank of gas, whichever comes first. The use of our Torco Transmission Fluid and Magnetic Drain Plugs is highly recommended."
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      01-13-2015, 03:32 PM   #69
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Quote:
Originally Posted by gap View Post
Have been taking it easy for the first couple hundred miles and definitely not over 170 kph.
I think the noise is more from the M3 sub-frame bushings and e46 M3 transmission mounts transmitting more sound. It is very faint and I only noticed it since I was consciously listening for it. Hope you are wrong about it getting louder with time, happy with the way it is now.

This is the Mfactory break-in procedure from their website;

"Do I need to break-in your gears?
Our gears are fully finished and ready to run right out of the box. However, we do highly recommend that an initial fluid flush be performed after 3-400miles or 1 tank of gas, whichever comes first. The use of our Torco Transmission Fluid and Magnetic Drain Plugs is highly recommended."
It's probably from the E46 M3 trans mounts. I got a lot more whine when I upgraded to those. Nice work on the diff cover, it looks amazing
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      01-13-2015, 06:29 PM   #70
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Finally had a chance to take a picture of the install. So far, no issues at all.
Looks great Pig Farmer! Thanks for your posts and getting me going on doing mine.
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      01-23-2015, 08:55 AM   #71
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Looks great guys. Im curious with a few questions. Im not really liking that you have to go with a spacer to fit a smaller cover. Wouldn't this also mean less fluid in the diff?

This might be a crazy idea... but couldn't a metal shop take something like the 650i cover or a 1M cover and mold or weld the fins onto the 135i cover? Then there would be no need for a spacer and you could keep the original fluid amount in the diff. Let me know if this is a crazy idea lol

If so then we(me) could do something a little more aggressive like the 1M or M3.
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      01-23-2015, 03:28 PM   #72
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Quote:
Originally Posted by Yeineken View Post
Looks great guys. Im curious with a few questions. Im not really liking that you have to go with a spacer to fit a smaller cover. Wouldn't this also mean less fluid in the diff?

This might be a crazy idea... but couldn't a metal shop take something like the 650i cover or a 1M cover and mold or weld the fins onto the 135i cover? Then there would be no need for a spacer and you could keep the original fluid amount in the diff. Let me know if this is a crazy idea lol

If so then we(me) could do something a little more aggressive like the 1M or M3.
There is no fluid where the spacer is so no loss there.

The 1M cover is a trick piece of aluminum and cost accordingly. All of the fabrication you are talking about will add a considerable amount to that. The
1M has a clutch differential which generates a lot more heat than the helical differential and needs the extra cooling surface.
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      01-23-2015, 07:45 PM   #73
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Quote:
Originally Posted by gap View Post
There is no fluid where the spacer is so no loss there.

The 1M cover is a trick piece of aluminum and cost accordingly. All of the fabrication you are talking about will add a considerable amount to that. The
1M has a clutch differential which generates a lot more heat than the helical differential and needs the extra cooling surface.
Hmm good points. Guess Ill go the 650i route. Did anyone create an official parts list?
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      01-24-2015, 07:28 AM   #74
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See post #55. One change on the list is to use Torco MTF in the MFactory diff instead of Redline 75/90.
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      01-24-2015, 08:48 AM   #75
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Quote:
Originally Posted by gap View Post
See post #55. One change on the list is to use Torco MTF in the MFactory diff instead of Redline 75/90.
Gap, did this help with the slight whine you were hearing, or are you just following Mfactory's recommendation? I'm currently running redline, but I'm almost ready for the post break-in fluid change. Just wondering if you noticed a difference using Torco. The only noise I hear is an occasional clunk ("clunk" is an exaggeration but I couldn't think of a better word) when engaging 1st gear after rolling backwards in reverse. I suspect the backlash is a tad bit loose, but I'm wondering if it could be the fluid?
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      01-24-2015, 10:15 AM   #76
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DO NOT use Torco MTF in your rear differential. That recommendation on our website was for our Honda transmissions.

For the BMW rear differential, we recommend using the oem recommended fluid or equivalent (75w90 gear oil, such as Torco SGO/RGO)
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      01-24-2015, 01:54 PM   #77
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Quote:
Originally Posted by Pig Farmer View Post
Gap, did this help with the slight whine you were hearing, or are you just following Mfactory's recommendation? I'm currently running redline, but I'm almost ready for the post break-in fluid change. Just wondering if you noticed a difference using Torco. The only noise I hear is an occasional clunk ("clunk" is an exaggeration but I couldn't think of a better word) when engaging 1st gear after rolling backwards in reverse. I suspect the backlash is a tad bit loose, but I'm wondering if it could be the fluid?
I too occasionally have the same noise, like a slight thump when engaging 1st while stopped. Thought it might be the stiffer Whiteline poly-bushings .
No noise difference between the Redline and Torco. Probably the e46 M3 transmission bushings. Very faint and you have listen hard for it, not something that is intrusive.
So after seeing Mfactory's response to use the Redline back down to the shop to change the fluid AGAIN!
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      01-24-2015, 02:04 PM   #78
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Quote:
Originally Posted by MFactory View Post
DO NOT use Torco MTF in your rear differential. That recommendation on our website was for our Honda transmissions.

For the BMW rear differential, we recommend using the oem recommended fluid or equivalent (75w90 gear oil, such as Torco SGO/RGO)
Well this is from your website under helical LSD, might want to be more specific.
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      01-24-2015, 02:56 PM   #79
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Yes, please accept my apologies. That was written a good number of years ago when our main product line was for Hondas.

The information will be updated though shortly with the release of our new website.
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      03-18-2015, 03:12 AM   #80
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Instead of 650i cover, can I use the M3 DCT diff. cover on my E92 335 DCT diff? Seem like they both are Type 215 housing.
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      03-18-2015, 06:17 AM   #81
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Originally Posted by 335iDCT View Post
Instead of 650i cover, can I use the M3 DCT diff. cover on my E92 335 DCT diff? Seem like they both are Type 215 housing.
The E92 M3 differential cover does not have a fill/drain hole. Instead, there are seperate fill and drain plugs in the cast iron carrier.
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      03-18-2015, 09:27 PM   #82
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If only the drain/fill plug is missing, I can drill and tap one easily.
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      03-20-2015, 03:12 PM   #83
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Just got this from a fellow 1Addict. Was a kit from HP Autowerks. Ordered a few things for the install. Any one want to confirm I have all the right necessary parts for the swap?
  • New Diff Oil
  • New Drain Plugs (2)
  • Loctite 5970 Liquid Sealant - 50ml

Was also thinking of upgrading to the 1M Differential Carrier Bushing. Is this difficult to do? I have access to a car lift so getting under the car is no prob. Any DIY?
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      03-20-2015, 04:57 PM   #84
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Quote:
Originally Posted by Yeineken View Post
Just got this from a fellow 1Addict. Was a kit from HP Autowerks. Ordered a few things for the install. Any one want to confirm I have all the right necessary parts for the swap?
  • New Diff Oil
  • New Drain Plugs (2)
  • Loctite 5970 Liquid Sealant - 50ml

Was also thinking of upgrading to the 1M Differential Carrier Bushing. Is this difficult to do? I have access to a car lift so getting under the car is no prob. Any DIY?
Looks like you received the most important parts (i.e. the diff cover, the spacer that goes between the diff cover and the rear bushing, and the longer bolt for use with the spacer). You also received 1 too many drain plugs, but you'll need to order an additional short bolt for the diff cover. The 135i cover is attached with 6 short bolts and 2 long bolts. The 650i cover is attached with 7 short bolts and 1 long bolt. I think the part number for the short bolt is listed above.

Oh, I had my mechanic change out the diff bushings but noticed it was a lot easier than the subframe bushings. For one thing, they are only about 2" in diameter and about 2.5" long, so you can likely find a puller at Harbor Freight. In addition, they don't have a rim around the edge like the subframe bushings, so you should be able to pull (or push) the old one out, and pull (or push) the new one in... whichever is easier.

I also did some research on sealing and torquing the cover. While I found a bunch of conflicting information, most seemed to suggest running a continuous bead around the whole diff cover (circling the bolt holes) and initially torquing the bolts to 10ft/lbs in a crisscross patten. Wait an hour or two for the 5970 loctite to setup. Then pull the bolts out one at a time, add blue loctite to the threads and torque the bolt to 20ft/lbs. After all the bolts are back in place retorque them to 30ft/lbs, and finally 40ft/lbs (always working in a crisscross pattern). I used the approach and had zero issues.
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      03-20-2015, 06:15 PM   #85
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I'm guessing HP AW no longer sells this kit. I just looked through their site and couldn't find it.
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      03-21-2015, 06:54 AM   #86
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Quote:
Originally Posted by kirkbar
I'm guessing HP AW no longer sells this kit. I just looked through their site and couldn't find it.
Nope. The person I bought it from purchased it 2 years ago. It looks like they just modified a 650i diff cover. I will measure the spacer once I receive it.
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      03-27-2015, 07:33 AM   #87
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Finally got the kit from HP Autoworks. It's just a 650i cover with the 3 fins already removed and nicely smoothed out with no sharp edges. The BMW logo and part # were removed. Still can tell that something was there in the 2nd pic.

Now just need to wait for the rest of the parts to show up so I can get around to installing it along with new M3 diff bushings.
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      03-30-2015, 05:52 PM   #88
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looks good, be sure to get the magnetic fill plug.
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