RonDwyer wrote:I think the consensus is that this nut is not going to be re-used. Tonight I am going to get a nice new drill and treat it as if i was drilling a ring gear off a flywheel.
If you can borrow a large enough impact gun, it will come off.
I've tried with a large 36mm wrench and by blocking the flywheel, which didn't do it for me. Afterwards, I'd made an attempt with a big air gun (450 Nm I believe) and I've found that it took less than one minute to loosen the nut. Obviously, applying a multi-purpose lubricant in advance might be beneficial as well.
This^
I don't care if you have a 12 foot wrench, constant pull is not what you want. You need shock to break it loose; a large impact will make short work of it.
Someone has one you can borrow or rent
Last edited by Peter Florance on Sun Aug 15, 2010 9:43 am, edited 1 time in total.
RonDwyer wrote:Hey DMS, I am not having as difficult time with this as you are. I do not have a truck to take it anywhere, I do not have easy access to any truck stops and I do not feel there is a need to be scolded with profanity. As a mechanical engineer I relish the challenge and have been doing these sorts of projects for 30 years having started out certified on Detroit Diesel engines. If I am happy with wearing out a few old cutting tools then that is my prerogative. This is a hobby and others have managed to read between the lines to discern I am having fun here. Besides, I don't have any liquid nitrogen either.
My post was said with a smile .
When I went to the truckstop I just threw the block in the back of my E12. You don't need a truck for this. Any car will do. Actually I put it in even without the engine hoist. It's not that heavy....
Anyway have fun taking it loose and let us know how you did it
I frequently recall an old quote by Dr. Porsche about how his cars regularly outperform brawny American V-8 competitors. I like the satisfaction of being able say i figured out how to do something myself instead of taking the easy routs in the face of a challenge. The eventual investment was 2 hours drilling time to create 3 rather large stress reliefs. Since my Dremels were not in good condition anymore I got a fresh one and finished one of the holes deep enough to allow a final chisel strike to split the nut. It drilled surprisingly easy, and I managed to finish without damaging any threads. Sure, I could have gone to considerable expense to take it somewhere, but there's no sense of accomplishment in that.
I wish I could hire project managers with the ability to get things done in the face of a costly easy route.
Pretty entertaining.
DIY mechanics who don't have proper tools for the task trying to get it done anyway.
<i>Welcome to the Real World.</i>
(Yea, I'd just borrow my neighbor's impact wrench; but since that's just be WAY too easy, . . .)
If you haven't hauled the motor to a shop with a massive impact tool,
You might consider <A HREF="http://www.liquidwrench.com/"> SOMETHING ELSE </A>that only an ill-equipped DIYer may attempt.
Good Luck
John Savage
1980 528i 5-Speed
FirstFives COTM Editor
. 
