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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 Tue, Jun-04-2019, 01:42:35 PM   #801
jdamore44
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Default Re: Comprehensive SMG to 6MT Conversion Thread

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Originally Posted by HDdave View Post
Damn... This does worry me. If yours was installed correctly and has no leaks.. Then it would seem that Sapote's theory might be our issue. Then we have ourselves a new problem of figuring out how to correctly fix this bearing.
Yeah.. that's where my thinking is heading too. I'm almost thinking of contacting KAIV to see if he still can tell which BH is the one I sent and have him machine and send it back to me in exchange for the one I installed....
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Old Tue, Jun-04-2019, 02:29:42 PM   #802
sapote
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Default Re: Comprehensive SMG to 6MT Conversion Thread

A folded lip seal should not cause too much heat. And with a leaking input seal the oil is not much lower than the input shaft, that is high enough for a casual drive without damaging anything. (The filler bolt is 1” lower than the input shaft.)
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Old Fri, Jun-07-2019, 08:13:02 PM   #803
Al Soobie Guy
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Default Re: Comprehensive SMG to 6MT Conversion Thread

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A folded lip seal should not cause too much heat. And with a leaking input seal the oil is not much lower than the input shaft, that is high enough for a casual drive without damaging anything. (The filler bolt is 1” lower than the input shaft.)
Pardon me, you are an ^&*%* and giving people advice that will land a locked up transmission. Do you really think fluid sits at a stand still while the gears are turning? Let alone there is less fluid in to begin with. Its a rhetorical question please think before you say stupid ($&( like that.

Gentlemen, if you have a leaking seal that is pouring, please use common sense and dont drive the car.


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Wondering if I messed mine up too. I have the whirring noise when clutch isn't pressed. I'll be pulling my transmission again soon, and hopefully it will be the seal.
https://www.youtube.com/watch?v=mugr6o58MvQ
That sounds i normal. Videos rarely do justice with noises and of-course if you have no fluid in it will be louder than normal. Manual transmissions are not silent, you should hear a 350z trans...


Dont install your seals before the housing, or you will likely roll the lip, especially if its your first time doing heavy job with no experience.

Knock the seal out, install the housing then put the seal in. Input shaft is tapered and there is zero chance of rolling the lip.

Last edited by Al Soobie Guy; Fri, Jun-07-2019 at 08:20:52 PM.
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Old Sat, Jun-08-2019, 12:55:41 AM   #804
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Default Re: Comprehensive SMG to 6MT Conversion Thread

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Originally Posted by Al Soobie Guy View Post
Pardon me, you are an ^&*%* and giving people advice that will land a locked up transmission. Do you really think fluid sits at a stand still while the gears are turning? Let alone there is less fluid in to begin with. Its a rhetorical question please think before you say stupid ($&( like that.
LOL, sapote trying to be helpful


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Old Sat, Jun-08-2019, 01:29:58 AM   #805
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Default Re: Comprehensive SMG to 6MT Conversion Thread

I think he didn't understand my point; I wasn't telling people to drive with the leaky seal -- major or minor, but rather to analyze if the leak had caused enough low oil and overheat. Again, the seal is about 1" higher than the oil level (in fact with all the constant mesh gears spinning around the oil level would be very low to pour out), so I think there is still much oil remained after just 10 miles drive.
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Old Sun, Jun-09-2019, 02:36:43 AM   #806
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Default Re: Comprehensive SMG to 6MT Conversion Thread

Okay... So after pulling the trans again I did find the seal was very badly folded inside out.. Def would advise anyone thinking about doing this swap to make sure you install seal after the bellhousing is on!

I did wind up losing prly 1/2 to 2/3 or a liter driving mine those 10 miles. I do believe that is what led to the heat, and my (what I am now realizing are normal) trans noises being louder. I got the car back together today with the new seal and everything feels great! Used BMW MTF LT-2 for fluid instead of whatever it was I got from ECS the first time.

As far as me thinking it wasnt shifting right.. Well I am sure low fluid had a lot to do with that. It is a learning curve for sure. Seeing as the car has a new clutch and flywheel, and basically every single component in the drivetrain that seals anything or spins replaced... It just takes some getting used to. Also the only other thing I have to compare it to is the one other 6 speed m3 I have driven (which was completely beat/ worn out).

So- Overall I love it!! Very pleased with the whole project. Huge thanks to everyone in here who has helped!

******* Side thought****** Does anyone who has a bellhousing off know/ or would be capable of checking to see what size threads the two fitting screwing into the bellhousing are (the ones we connect nothing to when we put the swap back together). There is another forum member who makes custom air vent gauges. I think it would be awesome if I could get some kinda conversion fitting to remove one of those sensors, then adapt it to NPT so I could run a temp sensor. Thoughts on this, or does anyone know those sizes?
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Last edited by HDdave; Mon, Jun-10-2019 at 03:25:24 AM.
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Old Fri, Jun-21-2019, 01:27:33 PM   #807
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Default Re: Comprehensive SMG to 6MT Conversion Thread

Did the manual swap and my car started leaking . I thiught maybe i damaged the seal while putting the bell housing . I paid someone to redue the seal and it leaked again , he put the seal before attaching the bellhousing to transmission , do you guys install the seal after attaching bellhousing or before ? Pleasw help this is the second time we pulled tranny
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Old Fri, Jun-21-2019, 04:47:06 PM   #808
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Default Re: Comprehensive SMG to 6MT Conversion Thread

Do u have the seal part number , want to make sure buy i get the wrong one
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Old Fri, Jun-21-2019, 04:54:48 PM   #809
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Default Re: Comprehensive SMG to 6MT Conversion Thread

Whoever you paid to do it needs to fix that- It is clearly not installed correctly
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Old Fri, Jun-21-2019, 05:35:03 PM   #810
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Default Re: Comprehensive SMG to 6MT Conversion Thread

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Iíll go to Mexico.
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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)