S2000 Under The Hood S2000 Technical and Mechanical discussions.

Tranny Case Cracked!

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Old 09-17-2011, 07:12 PM
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Default Tranny Case Cracked!

I just finished installing a new clutch and was torquing tranny drain plug to 15ft/lb when it cracked...
it appears it had been overtightened in the past (before my ownership) and caused some hairline stress cracks and this time i just couldn't take anymore




I'm stretched for cash & am currently thinking about tapping the treads further in, and putting in a longer plug w/ some sort of high-temp epoxy/glue on the threads to hold it just until I can afford a new housing (~$250) in a month or two, then I'll rebuild the tranny basically to put it all in the new casing..

this is my daily driver & I need a quick solution...

what would you guys recommend?
Old 09-17-2011, 09:02 PM
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Jb weld?
Old 09-17-2011, 09:31 PM
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appears that crush washer wasn't new that you used during installation which can cause even a low torque setting such as 15 ft-lb to crack the transmission.. always replace a washer, much cheaper than this alternative..
Old 09-17-2011, 10:06 PM
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When I did my tranny fluid change, I tried to get the crush washers necessary but one (the drain plug i believe) was not in stock. The parts counter told me to just flip the washer around on install and it should crush again. Seems to be working just fine.
Old 09-18-2011, 02:29 AM
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When you do this I would put some grease/vaseline on the cutting surface of the tap. The thick petroleum will catch the metal you are cutting to make the threads. I would also flush a good amount of MTF through the housing to make sure you get the shavings that might fall into the case. Good luck, this definitely will stick in my mind when I think about re-using a crush washer.

Bill
Old 09-18-2011, 07:31 AM
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it needs a new casing, and it takes a lot more than 15 lbs to break a casing. for a temp repair clean everytihng with brake cleaner and let it dry. Glue everything back with epoxy, when the epoxy is dry cover area with grey silcone. Good luck man
Old 09-18-2011, 02:05 PM
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The crush washer has been reused several times. It's not a oil pan, it's the entire trans case.

J/B weld until you can replace the case.
Old 09-18-2011, 02:11 PM
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See if you can get those pieces welded back on then retap it.
Old 09-18-2011, 02:30 PM
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Originally Posted by xyster
See if you can get those pieces welded back on then retap it.
Do this, if you can't weld aluminum find a good welder in your area, it beats having to take it all apart and could be a long term fix.

Seeing how the recommended torque is around 29 ft lbs, breaking at 15 ft lbs really sucks, sorry to hear that. I always have a fear of that happening to my tranny and engine oil cases, I tend to tighten them a bit less than the recommended torque levels to avoid a chance of damage.
Old 09-18-2011, 03:08 PM
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Originally Posted by Slows2k
The crush washer has been reused several times. It's not a oil pan, it's the entire trans case.

J/B weld until you can replace the case.
Don't know what I was thinking there. Deleted Mrs. Information.


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