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E30 (1982 - 1993)
God's Chariot. The E30 was produced primarily from 1982 through 1991. The cabriolet was the one exception which was produced through 1993.

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  #1  
Old 02-19-2013, 06:34 PM
Bimmer980 Bimmer980 is offline
ljk
Location: USA
 
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Mein Auto: e46 330
Transmission mounting problem

Hi all,

I recently replaced the guibo and center support bearing on my girlfriend's e30 ('89 convertible, 5 speed). After putting it back together, the transmission sits high on one side, and it makes a scraping sound when it's in any of the 2nd and 4th gear (the rear gears).

I had a jack under the transmission for part of the job to stabilize it. I also raised the engine several inches (by the oil pan) to lift the engine, so I could put the motor mount back on the passenger side (had to remove temporarily it to get some working room to get the exhaust off).

See pic below.

What is making the transmission sit high, and what can I do to fix it?


Last edited by Bimmer980; 02-19-2013 at 06:40 PM.
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  #2  
Old 02-19-2013, 09:27 PM
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hornhospital hornhospital is offline
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Looks like you ripped one of the tranny mounts. The one on the left in the picture looks like it's separated.
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  #3  
Old 02-20-2013, 04:35 PM
Bimmer980 Bimmer980 is offline
ljk
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Quote:
Originally Posted by hornhospital View Post
Looks like you ripped one of the tranny mounts. The one on the left in the picture looks like it's separated.
The transmission is supposed to rest on that mount. For some reason it is sitting elevated above it. Any ideas?
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  #4  
Old 02-20-2013, 05:17 PM
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hornhospital hornhospital is offline
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Because it's separated. It's junk. Replace it.
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Quotes to live by:
guessing gets expensive...drivinfaster
nothing is more expensive than a cheap BMW...c4harpe13
buying a ratty example (of a BMW) is a parasitic relationship.(and you ain't the mosquito) 7pilot

Ken Kanne, Silverhill, AL, E36 Forum Mod/Craigslist addict/Hoarder of all sorts of stuff
BMW-CCA #441426
1995 318is "Bebe"; 1993 325is "Elvira" 1985 635CSi "Katja" 1984 633CSi "Sylvia"
HAVE I HAD MY MEDS YET?

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  #5  
Old 02-20-2013, 06:59 PM
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downhiller downhiller is offline
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go solid mounts
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  #6  
Old 02-20-2013, 07:21 PM
Bimmer980 Bimmer980 is offline
ljk
Location: USA
 
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Anyone got a parts car, or work-in-progress, they can loosen one mount on? I'd like to confirm for sure that 'a new mount' is going to fix the problem. I have a feeling it won't. Thanks.
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  #7  
Old 02-20-2013, 08:27 PM
Bimmer980 Bimmer980 is offline
ljk
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Quote:
Originally Posted by downhiller View Post
go solid mounts
Where would I get those?
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  #8  
Old 02-20-2013, 08:35 PM
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hornhospital hornhospital is offline
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http://www.pelicanparts.com/cgi-bin/...%2FiC%20%20%20
__________________
Quotes to live by:
guessing gets expensive...drivinfaster
nothing is more expensive than a cheap BMW...c4harpe13
buying a ratty example (of a BMW) is a parasitic relationship.(and you ain't the mosquito) 7pilot

Ken Kanne, Silverhill, AL, E36 Forum Mod/Craigslist addict/Hoarder of all sorts of stuff
BMW-CCA #441426
1995 318is "Bebe"; 1993 325is "Elvira" 1985 635CSi "Katja" 1984 633CSi "Sylvia"
HAVE I HAD MY MEDS YET?

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  #9  
Old 02-20-2013, 08:45 PM
Bimmer980 Bimmer980 is offline
ljk
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Found the rubber mounts, thanks. I was asking about the solid ones.
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  #10  
Old 02-20-2013, 08:55 PM
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hornhospital hornhospital is offline
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I wouldn't recommend solids for a daily driver. Too much NVH.
__________________
Quotes to live by:
guessing gets expensive...drivinfaster
nothing is more expensive than a cheap BMW...c4harpe13
buying a ratty example (of a BMW) is a parasitic relationship.(and you ain't the mosquito) 7pilot

Ken Kanne, Silverhill, AL, E36 Forum Mod/Craigslist addict/Hoarder of all sorts of stuff
BMW-CCA #441426
1995 318is "Bebe"; 1993 325is "Elvira" 1985 635CSi "Katja" 1984 633CSi "Sylvia"
HAVE I HAD MY MEDS YET?

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  #11  
Old 02-21-2013, 06:12 PM
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downhiller downhiller is offline
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Quote:
Originally Posted by Bimmer980 View Post
Found the rubber mounts, thanks. I was asking about the solid ones.
all the places ive seen them dont have them anymore or the website doesnt work. but ive only searched the 2 i can remember
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  #12  
Old 02-21-2013, 08:07 PM
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_Ethrty-Andy_ _Ethrty-Andy_ is offline
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Quote:
Originally Posted by hornhospital View Post
I wouldn't recommend solids for a daily driver. Too much NVH.
+1


OP, check the right front engine mount (diagonally opposite) hasnt collapsed.
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  #13  
Old 02-26-2013, 07:01 PM
Bimmer980 Bimmer980 is offline
ljk
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Found the noise coming from gears 2 and 4. There's a circular piece of metal (stabilizing part?) that goes around the driveshaft, it's part of it, you can see it (the circular part in the upper right corner) in the picture. It rubs against the 'arm' that runs between the bottom of the shifter and the transmission.

I think the driveshaft is holding the transmission higher than it normally should be?

Is there a specific way to lower the driveshaft. I don't want to drop the exhaust again...

Last edited by Bimmer980; 02-26-2013 at 07:03 PM.
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  #14  
Old 02-27-2013, 07:24 PM
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downhiller downhiller is offline
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it does automatically shorten unless you bent/was given the wrong CSB when doing the first project. i would really turn your focus at the engine and tranny mounts before you start messing with the driveshaft again
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  #15  
Old 02-28-2013, 05:55 AM
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BMWFatherFigure BMWFatherFigure is offline
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Get brave and admit it went wrong in the re assembly stage. take it to bits and put it back together properly - maybe using a manual this time. No easy way out of this.
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  #16  
Old 02-28-2013, 04:02 PM
Bimmer980 Bimmer980 is offline
ljk
Location: USA
 
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Quote:
Originally Posted by _Ethrty-Andy_ View Post
+1


OP, check the right front engine mount (diagonally opposite) hasnt collapsed.
Thanks Andy, I missed your post above. I actually removed that mount to get some space when getting the exhaust loose. Sounds like I could have changed the engine positioning or a number of things. If I'm understanding you correctly, I'd want to raise that side of the engine, correct?

Quote:
Originally Posted by downhiller View Post
it does automatically shorten unless you bent/was given the wrong CSB when doing the first project. i would really turn your focus at the engine and tranny mounts before you start messing with the driveshaft again
That makes a lot of sense...Andy's post clarified things. I think the CSB was the right one, but if worse comes to worse, I'll be seeing it again :/

Quote:
Originally Posted by BMWFatherFigure View Post
Get brave and admit it went wrong in the re assembly stage. take it to bits and put it back together properly - maybe using a manual this time. No easy way out of this.
It could have (possibly) gone wrong, but the rest of your post is reaching, quite a bit. We'll save our 'other' opinions for later. Thanks.

Last edited by Bimmer980; 02-28-2013 at 04:08 PM.
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  #17  
Old 04-28-2013, 10:13 PM
Bimmer980 Bimmer980 is offline
ljk
Location: USA
 
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fixed it

For those wondering,

The transmission mounting bracket is asymmetrical, and I had it turned around backwards ... I figured this out after taking a careful, careful second look.
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  #18  
Old 04-29-2013, 03:00 AM
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_Ethrty-Andy_ _Ethrty-Andy_ is offline
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dont know how i missed that, i was even looking at the picture for a second time now before reading your post above thinking gosh that right side mount looks squished like the marshmellow part of a s'more lol
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