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Transmissoin pan bolt stripped

99prixgt

99prixgt

club of used to own a gp
So i was putting the pan back on my car and on the 3rd bolt it stripped out (when i looked at the bolt i noticed it was stripped on the bottom of the transmission itself). I put in all the other bolts and torqued accordingly, just that one bolt is in snug. How should i go about fixing this problem?
 


yep, helicoil would be the way to go. I bought a kit when I thought I stripped a bolt, but it turned out the bolt just broke.
 
Or you could use a tap and take it to the next size up. Thats what I did when the studs for the Throttle body stripped out. I took those suckers to 1/4-20. I cant imagine why you would use such a fine thread to begin with in aluminum.
 


1/4-20 is the next step up in standard sizes and that calls for a 3/16" drill bit if I recall correctly, so for the M6 x 1.0 I would say 5/32. I believe the actual drill bit size is 5mm for M6 x 1.0 but I cant think off the top of my head what standard size that is closer to.
 
SyntheticShield said:
1/4-20 is the next step up in standard sizes and that calls for a 3/16" drill bit if I recall correctly, so for the M6 x 1.0 I would say 5/32. I believe the actual drill bit size is 5mm for M6 x 1.0 but I cant think off the top of my head what standard size that is closer to.
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I bought a tap set with bits and picked up some bolts. Now the only thing im wondering is where i can find aluminum bolts.
 
99prixgt said:
I bought a tap set with bits and picked up some bolts. Now the only thing im wondering is where i can find aluminum bolts.
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Why do they have to aluminum. Just go to a hardware store and have them match the size and thread pitch. If one is too long, cut it down and debur the end.
 
Sabrewings said:
Why do they have to aluminum. Just go to a hardware store and have them match the size and thread pitch. If one is too long, cut it down and debur the end.
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Isnt the pan aluminum? If i mix metals, over time it would promote corrosion.
 


Look at it this way. You have bolts that go through your LIM (aluminum) straight in to your heads (iron). The bolts can't be both. See any excessive corrosion? :th_winking:
 


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