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God please help! (Snapped header pipe bolts/studs)
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mag222
New User
Dec 3, 2008, 6:22 PM
Post #1 of 2
(1138 views)
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God please help! (Snapped header pipe bolts/studs)
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Please no grief as I am already pretty bummed about this whole mess... I would really appreciate some advice...
I was trying to replace the header pipe on my 1993 Sentra. I mean the pipe that connects the exhaust manifold to the exhaust system underneath the car.
As I was trying to remove the bolts, I snapped two off flush with the bottom of the flare on the pipe... I successfully remove the third and therefore the header pipe is now removed.
Now I have to figure out where to do from here. As the pipe is now removed, I can grip the remaining portion of the snapped bolts with vice grips...
However, I don't know whether or not these 'bolts' will unscrew or if they are welded to the exhaust manifold (in which case I'm screwed I guess.
Any explanation or advice would be much appreciate.
Thanks in advance
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Dec 3, 2008, 6:45 PM
Post #2 of 2
(1135 views)
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Re: God please help! (Snapped header pipe bolts/studs)
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Take a little time here to NOT make it worse. I just don't know exactly how these broke and what access you have. They might be "studs" into threaded holes or splined pressed in studs that could be replaced by just knowcking them out. If they are just plain bolts thru open holes you probably wouldn't be here in trouble.
Can you tell us if what remains (you said some threads are still there) is in a "blind" hole or do you see a round (on purpose) stud on the back side?
Either way the best way to extract these things IF there's anything to grab is to heat the metal to glowing hot which takes torches like Oxy/Acet but only if there's proper room for that. If bad enough you might take the whole manifold off and work on it elsewhere and those can break off too into the head this time - more hair loss than most can afford
Seriously - if there's something left to grab I suggest sending this out to a shop that would consider this routine and have all the junk to do that without further damage or losses. It's actuall good that there's still something to grab right now or drilling them out could be the only way - no fun at all and location may not allow.
YOU AREN'T ALONE! Much of that type thing is not DIY friendly even though it's just nuts and bolts. Dealing with broken, rusty stuff is an art and take equipment + some know how to cut losses and get out of it the best way.
I doubt it but they do make "C" clamps (cheating) to go over the whole area for some that work well - don't think this one has room for that,
T
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