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View Full Version : stripped manifold/head thread.

Th0r
10-19-2009, 07:44 PM
I'm not surehow I did it but I stripped the threads of the far right manifold hole on the head. What exactly are my options?
Nate's Alero
10-19-2009, 07:45 PM
retap for a slightly larger bolt, helicoil...
[ion] C2
10-19-2009, 07:54 PM
I almost fully stripped the second one from the left. Use a thread repair kit for M8x1.25.
Redog
10-19-2009, 08:17 PM
helicoil...

:wtf2: He said nothing about a spark plug
[ion] C2
10-19-2009, 08:23 PM
Wait, you think helicoil thread repair is only for spark plugs? http://xceedspeed.com/forums/images/smilies/rofl3.gif
clutch1
10-19-2009, 08:31 PM
C2;502483']Wait, you think helicoil thread repair is only for spark plugs? http://xceedspeed.com/forums/images/smilies/rofl3.gif

lolz :haha: good call. Nate hit it on the head.. helicoil = lifesaver.
Ryan from Ohio
10-19-2009, 08:38 PM
retap for a slightly larger bolt, helicoil...

Helicoils require specific taps, not just re-tapping something and magically inserting a heli coil.

When you do the Helicoil it is IMPERATIVE to drill the hole straight and do NOT wobble it.

If you can do the job on a drill press then do that!
Nate's Alero
10-19-2009, 08:45 PM
Helicoils require specific taps, not just re-tapping something and magically inserting a heli coil.

When you do the Helicoil it is IMPERATIVE to drill the hole straight and do NOT wobble it.

If you can do the job on a drill press then do that!

seperated by a comma, it was two different options....

you can do a helicoil

OR

you can tap for a slightly larger bolt....
Ryan from Ohio
10-19-2009, 09:11 PM
ah

I would go Helicoil. Its stronger than the original threads.
Nate's Alero
10-19-2009, 09:13 PM
ah

I would go Helicoil. Its stronger than the original threads.

lol, agreed, half my car is held together with them.....

damned shitball torque wrench being 35LBS off....
surreal_awakening
10-19-2009, 10:43 PM
Helicoil for sure. Stripped out the threads in a rocker arm boss on the head before. Helicoiled it while the head was still on the engine. Runs like a champ.
Th0r
10-20-2009, 09:07 AM
So why are he supercharger manifold bolts so much shorter the the original bolts?
[ion] C2
10-20-2009, 12:42 PM
Get some new bolts lol
Ryan from Ohio
10-20-2009, 01:10 PM
For reference:

With ANY bolt into a blind hole there should be 1.5 time's the diameter engagement.