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Old 02-02-2013, 12:55 AM   #1
Royksopp
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transmission whistle???

i have a bmw e36 325is (m3 swap from 98), i just had a small leak fixed on my transmission, and had a new hanger bearing installed aswell (completely shredded). From a cold start, in all the gears i heard a whistling noise coming from my transmission, but when i clutch in, the noise stops. it seems to occur when under load. When my car is fully warmed up the noise stops. i did some research and no solid explanations. before i got everything fixed it never had made that noise.

has anyone had this problem?

thanks,
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Old 02-02-2013, 05:55 AM   #2
E36is
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few things come to mind:

need a new clutch/flywheel
need a new throw out bearing
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Old 02-02-2013, 10:40 AM   #3
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okay, ill defiantly look into that.
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Old 02-02-2013, 10:54 AM   #4
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could it possibly the type of fluid used aswell? my clutch seems fine, not slipping or anything. because once my car is warmed up it goes away..
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Old 02-02-2013, 11:34 AM   #5
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dont think fluid will cause that noise.
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Old 02-02-2013, 12:07 PM   #6
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i was reading on m3forum.net, and it could possibly be an input shaft bearing.
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Old 02-02-2013, 01:34 PM   #7
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Judging by your symptoms my number one suspect would be the input bearing on the diff.
Seen this issue quite a few times.
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Old 02-02-2013, 04:49 PM   #8
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im probably going to call RMP and have them diagnose this problem.
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Old 02-03-2013, 11:00 AM   #9
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clutchy
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Old 02-03-2013, 11:33 AM   #10
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Input shaft bearing on the tranny. Get M0S2 Anti-friction paste for gears by Lubro Moly, squize it into the tranny and the noise will go away.
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Old 02-03-2013, 11:54 AM   #11
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Where can you get this paste???
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Old 02-03-2013, 01:54 PM   #12
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Definitely bearing, I had the exact same problem. Mine was the counter shaft bearing though. Do you hear the noise in 5th gear?
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Old 02-03-2013, 02:19 PM   #13
Royksopp
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yes i did, in all the gears. i have another transmission that i got earlier this week, if it comes down to it, ill just have the other one swapped out.
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Old 02-04-2013, 12:32 PM   #14
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you can buy the paste at Automaster Trading shop. It's on 1170 Sheppard ave West, Unit 27. It's like 10-15$
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