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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Sun, Jul-07-2019, 10:55:07 PM   #821
AndrewLang
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Default Re: Comprehensive SMG to 6MT Conversion Thread

Sometimes when a bellhousing is machined a little off it is hard to find gears. But usually this would also give you a problem also finding first. Similarly people can have problems “finding” 5/6 or reverse if the machining isn’t precise.

You may just have worn synchros on 2 if you have problems with that gear specifically.

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Question for everyone who has done this conversation, do you have a hard time shifting into second gear or any other gear(s)?

I picked up my car yesterday from Kaiv. I have no problems shifting into any of the other gears except for second. I have to put a lot of deliberate effort and pressure in order to throw it in second. The few times I've done it successfully, the shift knob comes loose from force. Kaiv said that this is common and is quite normal for the getrag transmission on some cars. I'm about skeptical and don't think this would be normal.

Pentosin 75W80 MTF2 fluid and BMW performance shifter (standard package that was included in the swap).


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Old Sun, Jul-07-2019, 10:59:10 PM   #822
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Default Re: Comprehensive SMG to 6MT Conversion Thread

If anyone needs help with coding/ programming in SoCal feel free to call us. 949-667-4397.
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Old Sun, Jul-07-2019, 11:31:34 PM   #823
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Default Re: Comprehensive SMG to 6MT Conversion Thread

Quote:
Originally Posted by AndrewLang View Post
Sometimes when a bellhousing is machined a little off it is hard to find gears. But usually this would also give you a problem also finding first. Similarly people can have problems “finding” 5/6 or reverse if the machining isn’t precise.



You may just have worn synchros on 2 if you have problems with that gear specifically.
Could it be something else other than worn synchros? Previous owner replaced the clutch and flywheel right before I bought it. I drove it a little over a thousand miles before converting to 6MT. Getting into 2nd wasn't an issue with SMG tranny. I was able to go thru all the gears. First thru sixth or third down to second. No issues.

Read somewhere that synchros requires transmission rebuild. Just wondering if it could be something else. 2nd is very hard to get into. I'd have to get out of first, then back into first and fast deliberate shift into second. I'd hear a clunk sound when I do this.

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Old Tue, Jul-09-2019, 12:11:36 AM   #824
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Default Re: Comprehensive SMG to 6MT Conversion Thread

Quote:
Originally Posted by ftapache View Post
Could it be something else other than worn synchros? Previous owner replaced the clutch and flywheel right before I bought it. I drove it a little over a thousand miles before converting to 6MT. Getting into 2nd wasn't an issue with SMG tranny. I was able to go thru all the gears. First thru sixth or third down to second. No issues.

Read somewhere that synchros requires transmission rebuild. Just wondering if it could be something else. 2nd is very hard to get into. I'd have to get out of first, then back into first and fast deliberate shift into second. I'd hear a clunk sound when I do this.

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bad 2nd synchro should cause grinding noise instead of hard to shift , and the original SMG didn't grind with 2nd shifting then the issue is not 2nd synchro.

I'm trying to think why 1st is OK but hard on 2nd.

Last edited by sapote; Mon, Jul-15-2019 at 05:27:38 PM.
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Old Wed, Jul-17-2019, 10:30:40 PM   #825
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Default Re: Comprehensive SMG to 6MT Conversion Thread

Quote:
Originally Posted by ftapache View Post
Question for everyone who has done this conversation, do you have a hard time shifting into second gear or any other gear(s)?

I picked up my car yesterday from Kaiv. I have no problems shifting into any of the other gears except for second. I have to put a lot of deliberate effort and pressure in order to throw it in second. The few times I've done it successfully, the shift knob comes loose from force.
Do you need same larger force to shift from 2nd to neutral or neutral to 2nd? If yes then might be the 2nd detent pin/spring jamming issue. It could also be the 2nd slider gear has very dull teeth or distorted teeth causing very tight gear mesh, but the SMG robot had no issue with 50 bar hydraulic pressure arm to move things around.
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Old Thu, Jul-18-2019, 12:05:27 AM   #826
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Default Re: Comprehensive SMG to 6MT Conversion Thread

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Do you need same larger force to shift from 2nd to neutral or neutral to 2nd? If yes then might be the 2nd detent pin/spring jamming issue. It could also be the 2nd slider gear has very dull teeth or distorted teeth causing very tight gear mesh, but the SMG robot had no issue with 50 bar hydraulic pressure arm to move things around.
It's only getting into 2nd that's hard. Getting out requires the same gentle, delicate force as getting in or out of the other gears. For now I'm avoiding 2nd all together.

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Old Thu, Jul-18-2019, 01:49:35 AM   #827
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Default Re: Comprehensive SMG to 6MT Conversion Thread

This could be that 2nd had this hard to shift issue when still with SMG but no one knew.
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Old Mon, Sep-16-2019, 03:50:54 PM   #828
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Default Re: Comprehensive SMG to 6MT Conversion Thread

Does anyone know where I can recover the pictures from this thread. They very recently disappeared. I wish I had printed this before.
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Old Fri, Sep-20-2019, 04:01:30 AM   #829
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Default Re: Comprehensive SMG to 6MT Conversion Thread

Can someone re upload the pictures?
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Old Thu, Sep-26-2019, 04:42:14 AM   #830
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Default Re: Comprehensive SMG to 6MT Conversion Thread

Quote:
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Does anyone know where I can recover the pictures from this thread. They very recently disappeared. I wish I had printed this before.
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Originally Posted by pablo047 View Post
Can someone re upload the pictures?
I found a good copy on the Wayback Machine: https://web.archive.org/web/20161023...d.php?t=444126

Save the page or print as PDF so you still have it offline.
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Discussing Comprehensive SMG to 6MT Conversion Thread in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)