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01-10-2015, 04:20 PM | #67 | |
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01-10-2015, 09:52 PM | #68 | |
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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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01-13-2015, 06:29 PM | #70 |
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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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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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01-24-2015, 08:48 AM | #75 |
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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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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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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, 06:17 AM | #81 |
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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?
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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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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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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