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Driving Without Trans. Mount

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_1466_

15+ Year Contributor
135
0
May 10, 2008
North Haledon, New_Jersey
Today I discovered my trans. mount sitting on the trans. without any bolts. Both holes in the transmission casing are completely stripped and there is excessive movement in the bushing. The worn bushing must have eventually caused the holes to strip out from constant torquing back and forth on the bolts? Or the last shop to work on the car... actually, lets not go there. It's very unsettling knowing that my transmission hasn't been attached to the chassis during numerous launches and I hope the drive train hasn't been damaged. :barf:

What would be the best solution for this issue other than a new trans. casing? I read many other threads and I'm leaning toward using Heli-Coil inserts in the holes. However, I'm not sure if they'll have enough strength for a mount. Any input is greatly appreciated!

Chris
 
My car has Heli-coils there to do thread stripping. I ran my car ran like that for years, but it was a bone stock .
 
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Heli-coils will be strong enough. They are surprisingly strong. Or you could just retap the holes and use a different sized bolt.
 
Heli-coils will be strong enough. They are surprisingly strong. Or you could just retap the holes and use a different sized bolt.

Thought about that too. Drill bigger holes in the mount and use bigger bolts if I'm worried about Heli-Coil inserts.
 
I HATE Heli-coil. They have failed on me a couple times. There are other, better thread repair kits out there. Whetever you decide to do, stud it cause once the repair threads are in you don't want to ever use them again. More wear/ more fail. Locktite the stud and Helicoil.
 
My first choice is TIME-SERT. I just couldn't find any local vendors...
 
Instead of utilizing a helical coil of wire like the "Heli-Coil" does, TIME-SERT implements a solid bushing insert to replace the damaged original threading. The top three (or so) threads actually expand into the new hole which is nice. Check them out: TIME-SERT.
 
Forgive the newb question.What is timesert.:hmm:

Goooogle iiiit! ++ TIME-SERT :p

Time-Serts do look much stronger, which I would want if it were me doing this repair. I just performed my first two Heli-Coil repairs the day before yesterday. Low torque applications, and I don't intend to be taking the bolts out any time soon (that is, once I put them in :coy:). They're expensive by my standards (needing only one or two inserts of each pitch), but I'll warn you now that Time-Serts are $50+ a kit.
 
....They're expensive by my standards (needing only one or two inserts of each pitch), but I'll warn you now that Time-Serts are $50+ a kit.

I know, So much $$$! You hit it right on the money. The stock bolts literally ripped out... I want to use the strongest product I can.
 
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