22r Exhaust Leak Questions...
11-07-2011, 06:37 PM
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22r Exhaust Leak Questions...
So i need a little help. I have a 22r/20r hybrid motor, when i pulled the 22r manifold off to replace it with the 20r one most of the threads in the wholes on the head were ruined. I chased the threads with a 10mm tap to avoid drilling, still have an exhaust leak. I'm either gonna go SAE thread, but what is a size up from from metric in SAE? And is Helicoil possible without removing the head? If anybody has done this, any help would be great
11-07-2011, 06:52 PM
#2
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i have a 22re, had to helicoil my front-most stud. (it pulled out at proper torque)
it was no problem with my cordless drill, head in place. i got it from napa, as that pitch i remember having a hard time finding at any hardware store. $60, no leaks, no regrets.
not a big fan of puting different sized bolts because of the amount of "meat" left to thread into deminishes. I realize that is also true with a helicoil but in my mind having the stainless insert makes up for it in an aluminum piece. mine holds torque like a champ. just watch some vids on it to make sure and do the proper install
btw that 60 dollar kit came with drill, tap, coil insert tool, and like 10 coils
it was no problem with my cordless drill, head in place. i got it from napa, as that pitch i remember having a hard time finding at any hardware store. $60, no leaks, no regrets.
not a big fan of puting different sized bolts because of the amount of "meat" left to thread into deminishes. I realize that is also true with a helicoil but in my mind having the stainless insert makes up for it in an aluminum piece. mine holds torque like a champ. just watch some vids on it to make sure and do the proper install
btw that 60 dollar kit came with drill, tap, coil insert tool, and like 10 coils
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