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General E46 Forum
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Old 12-20-2012, 11:11 AM   #1
Weste46
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New motor mounts..

I just ordered my new mounts. I was wondering if anyone had any specific details on what to do to prep for raising the engine, such as disconnecting certain items so I don't crush them. Its an M54b30 in a coupe.

Also, should I need new flange nuts for the mounts, or will the originals work fine? I ordered e9x M3 motor mounts to get a stiffer engine feel, and am replacing my transmission mounts as well with UUC black enforcers!

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Old 12-20-2012, 11:14 AM   #2
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Originally Posted by Weste46 View Post
I just ordered my new mounts. I was wondering if anyone had any specific details on what to do to prep for raising the engine, such as disconnecting certain items so I don't crush them. Its an M54b30 in a coupe.

Also, should I need new flange nuts for the mounts, or will the originals work fine? I ordered e9x M3 motor mounts to get a stiffer engine feel, and am replacing my transmission mounts as well with UUC black enforcers!

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Remove the cabin air filter assembly, air filter box and scoop and I think that's about it. Remove the front wheels to make it easier. Jack up the engine a little at a time (use a wooden block on the oil pan if you go that route) and keep an eye on the coolant hose in the front to make sure you don't tear it. Also watch the heater lines at the back. That's why do it a little at a time just enough to get clearance.

Always buy new nuts that come w/ nylon lock washer. but if you must reuse, definitely blue loctite. 37 ft lbs
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Old 12-20-2012, 12:20 PM   #3
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I have done the way E46Mango suggested, but this is how I will do it if there is next time.

http://forum.e46fanatics.com/showpos...2&postcount=15

New nuts are recommended, but I didn't pre-ordered them so I reused them with locktite.
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Old 12-20-2012, 01:18 PM   #4
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Remove the fan and do one at a time so the motor tilts and gives you more room. Works like a charm. Done it on probably 50 different BMW's
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Old 12-20-2012, 01:21 PM   #5
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Yeah i forgot to include removal of the fan. definitely do that
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Old 12-20-2012, 09:38 PM   #6
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I have a manual 5sp. I thought removal of fan was only needed for automatics?

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Old 12-20-2012, 09:42 PM   #7
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The crank pulley will run into the fan shroud as the engine moves upwards. Honestly, you don't need to remove it completely, just lift it up to make room for the pulley. Although, once it's loose, it's really not any easier not to remove it.

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Old 12-21-2012, 12:23 AM   #8
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Okay guys, thanks for the help! Well I'll be swapping the mounts on Saturday, I'll update with how it went. Thanks!

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Old 12-28-2012, 01:55 AM   #9
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Is the fan removal necessary on 5sp manuals?

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Old 12-28-2012, 07:21 AM   #10
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Yes, in so much as you need to lift it a few inches to allow the crank pulley to clear.

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Old 12-28-2012, 10:33 AM   #11
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Is the fan removal necessary on 5sp manuals?

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It takes like 60 seconds (at most) to remove the fan. a well trained sloth could do it!
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Old 12-28-2012, 08:22 PM   #12
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Oh wow, that's just the one thing out of the list I've never done, didn't know it was so easy. Well, mounts are going in tomorrow, excited for it! I'll update ASAP, thanks for the help!

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Old 12-30-2012, 12:04 AM   #13
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Well, all done. The motor mounts were both completely crushed, car feels excellent now! Really made a big difference!

Thanks for all the help, everything went very smooth! Picture is of the old, crushed, and oil-leaking stock mount!

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Old 12-30-2012, 12:07 AM   #14
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'Grats. Oh you're welcome, glad I could help..
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Old 12-30-2012, 04:27 AM   #15
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Did you upgrade to the m3 mounts?
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Old 12-30-2012, 03:12 PM   #16
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Haha yeah, upgraded to e9x M3 motor mounts. I thought they would give me more cabin vibration since they're made to handle 444hp engines, but its super smooth, yet solid. I daily my 330ci, and would absolutely recommend getting these motor mounts!

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Old 12-30-2012, 03:32 PM   #17
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Originally Posted by Weste46 View Post
Well, all done. The motor mounts were both completely crushed, car feels excellent now! Really made a big difference!

Thanks for all the help, everything went very smooth! Picture is of the old, crushed, and oil-leaking stock mount!

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How many miles did your old motor mounts have on them?
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Old 12-30-2012, 03:55 PM   #18
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When I put mine in I just raised it up slowly .nothi g wAsintge way and I didn't need to remove anything
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Old 01-11-2013, 06:19 PM   #19
Weste46
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170k original miles on stock mounts. No excess vibrations from the new mounts either. Actually cut down on vibrations! M3 mounts are the best.

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Old 01-11-2013, 06:20 PM   #20
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When I put mine in I just raised it up slowly .nothi g wAsintge way and I didn't need to remove anything
Yeah, fan didn't need to be moved for me but it made it worry-free with everything out of the way! I left the fan loose but in place because the wiring was in a clip I thought I would have broken if I tried to get it out. Never had to raise it though. I jacked from the oil pan behind the sway bar with a few wood blocks I cut to size.

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