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Old 11-14-2012, 10:06 AM   #1
jumbee
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Unusually tight transmission bolt

Need some help guys....I'm removing the tranny from my 2000 328 and I'm having a very difficult time removing one bolt. Not the 2 upper bolts but bolt #5 according to this pic (thanks Nervous). This bolt is extremely tight and will no longer turn. Bolt #1 was somewhat as difficult but using the breaker bar I managed to get that one off. Has anyone else had this problem with these two bolts when dropping their tranny? I think these two bolts also have the guide collars and I'm wondering if the bolt is binding in the guide collars.
Thanks
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Old 11-14-2012, 10:47 AM   #2
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Maybe s/he ran out because you have a large member? Trannies are skittish like that.
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Old 11-14-2012, 11:00 AM   #3
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Did you strip it ? Because for your sake I hope you didn't.

I haven't pulled a tranny off but if you can get some pb blaster back there, do it. Then pray It comes loose.

Good luck.
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Old 11-14-2012, 11:07 AM   #4
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Did you strip it ? Because for your sake I hope you didn't.
Don't think it was stripped. All I did was attach the extensions to the torx and turn the bolt. From the begining this bolt was very difficult to turn and got even more difficult. I've managed to move it about 3/4 inch and now it won't budge and I'm using 1/2" extension and breaker bar. This sucker will no longer turn...wtf !!
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Old 11-14-2012, 11:22 AM   #5
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So what bolts are still in there ? It could be that because bolts are missing the tranny isn't supported enough making that bolt almost impossible to get out... Try putting a jack under the tranny and giving it a little support and see if that helps getting the bolt out
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Old 11-14-2012, 11:29 AM   #6
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Hard to guess how it happened, but it sounds like it's now galled in place. Anything you do, it's going to be a bugger. If you were to cut the head off the bolt, could you then get the transmission off? It might be easier to address the bolt problem with the transmission out of the way, even if it no longer had a head. Just a thought, not necessarily a recommendation.
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Old 11-14-2012, 11:29 AM   #7
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Jack was under tranny from the beginning. Interestingly bolt #1 had the same issue and I managed to get that one off. Now bolt #5 is the only one still in there. Jeeze, I hope I don't have to cut the bolt head off !! Think I'll try some heat and if that doesn't work then it seems that I'll have to cut the bolt head off...

Last edited by jumbee; 11-14-2012 at 11:34 AM.
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Old 11-14-2012, 11:33 AM   #8
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Does the bolt not tighten anymore either ?

It sucks when simple stuff like this turns into suck a headache. I feel your pain man... Been there too many times.
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Old 11-14-2012, 11:35 AM   #9
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Try lowering or raising the trans (even if it's by a mm) it might help. Just trying to think of anything short of cutting the bolt head off
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Old 11-14-2012, 11:38 AM   #10
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Try putting some of the other bolts back in. Lightly torque them, then go at #5 again. Maybe the tranny got rotated a bit and is binding the bolt threads.

Last edited by WDE46; 11-14-2012 at 11:39 AM.
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Old 11-14-2012, 11:47 AM   #11
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Yes they are hard to turn, some more than others. If you have an impact that helps but it can be done without an impact. As long as you don't strip the torx bolt head, give it some elbow grease. It may seem something is about to break, but it will eventually start to turn. You have rust and galvanic corrosion working against you as well. The guide collars surround the bolt that is the bolt threads right through them. There should be no issues about them binding except if corrosion built up in between it and those torx bolts.

Long breaker bar (one that accepts a socket), a long extension and then the e-torx socket is all you should need. If you need use a 3/8" to 1/2" converter, place it at the end with the e-torx socket. Be aware that the more extensions you connect between the e-torx socket and the breaker bar, the more those connections will "give" since the connections can cause the extensions to move slightly, obviously not a completely solid connection to transfer the torque forcefully. Head by your local Northern Tool and they should have both extra long extensions and breaker bar as well.

http://www.northerntool.com/shop/too...1457_200381457

http://www.northerntool.com/shop/too...2868_200452868
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Old 11-14-2012, 11:55 AM   #12
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try putting some of the other bolts back in. Lightly torque them, then go at #5 again. Maybe the tranny got rotated a bit and is binding the bolt threads.
+1
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Old 11-14-2012, 11:59 AM   #13
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Yes they are hard to turn, some more than others. If you have an impact that helps but it can be done without an impact. As long as you don't strip the torx bolt head, give it some elbow grease. It may seem something is about to break, but it will eventually start to turn. You have rust and galvanic corrosion working against you as well. The guide collars surround the bolt that is the bolt threads right through them. There should be no issues about them binding except if corrosion built up in between it and those torx bolts.

Long breaker bar (one that accepts a socket), a long extension and then the e-torx socket is all you should need. If you need use a 3/8" to 1/2" converter, place it at the end with the e-torx socket. Be aware that the more extensions you connect between the e-torx socket and the breaker bar, the more those connections will "give" since the connections can cause the extensions to move slightly, obviously not a completely solid connection to transfer the torque forcefully. Head by your local Northern Tool and they should have both extra long extensions and breaker bar as well.

http://www.northerntool.com/shop/too...1457_200381457

http://www.northerntool.com/shop/too...2868_200452868
Torque is transferred between extensions 100% if you hold them straight (which is often impossible). I think you are referring to the shaft compliance where the extensions are long enough to have noticable compliance thus becoming a rotational spring. They will transfer all the torque provided they are not actively turning.
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Old 11-14-2012, 12:21 PM   #14
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Took a quick sandwich break and returning to the task.
Long breaker bar 1/2" type....check
1/2" to 3/8" adapter ....check
multiple 1/2" extensions....check
impact type E14 Torx....check
I'm gonna put some of the bolts back on as WDE46 suggested and give it a try. Hope something works
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Old 11-14-2012, 12:40 PM   #15
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Try putting some of the other bolts back in. Lightly torque them, then go at #5 again. Maybe the tranny got rotated a bit and is binding the bolt threads.
I'm betting on this.
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Old 11-14-2012, 12:43 PM   #16
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I struggled with my fan nut for 2 days until someone here suggested heating up the nut with a heat gun. Did it and problem solved in 5 minutes. Not sure if the location of your would prohibit it, but it worked like a charm for me..
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Old 11-14-2012, 12:46 PM   #17
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Originally Posted by jumbee View Post
Don't think it was stripped. All I did was attach the extensions to the torx and turn the bolt. From the begining this bolt was very difficult to turn and got even more difficult. I've managed to move it about 3/4 inch and now it won't budge and I'm using 1/2" extension and breaker bar. This sucker will no longer turn...wtf !!
Try working it in and out. By that I mean squirt some WD40 on the the exposed screw threads, screw it all the way back in again, then screw it out as far as it will come, wiggle it back and forth and repeat. It may be a self locking screw. Be patient. If you get it out one or two extra thread pitches each time it will be worth it.
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Old 11-14-2012, 01:05 PM   #18
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I had this exact problem, unfortunately both of my e14s were seized. So siezed that i managed to break one off in the block, and the other cracked a chunk off of the block. This was a sad day.
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Old 11-14-2012, 02:02 PM   #19
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This is why you should always unscrew bolts in stages. Stage one is to break all of the bolts, then take each out 1/4 at a time. If a bolt is being pushed laterally, you run the risk of stripping/seizing the threads.

Do as recommended above, put the other bolts back in. Spray PB on stuck bolt, screw it back in, then out. Hope you can get it to the proper torque spec when you reinstall. All of mine came out with easy after they were broken.
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Old 11-14-2012, 02:25 PM   #20
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No success. Can't even get the damm bolt back into the block. So I've sprayed the bolt with Kroil penetrant and will let it soak for a few hours and then try again. Pics show how much bolt has moved.
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