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Manifold bolt

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Blake

02-17-2001 11:12:49




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while changing the exhaust manifold on my 504. I busted off one of the bolts in the block. I then tried to back the bolt out with a hardened reverser...that too busted off. Any one have any ideas how to get the rest of the bolt out?




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gene b

02-18-2001 08:38:26




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 Re: manifold bolt in reply to Blake, 02-17-2001 11:12:49  
if the stud remover is broke off also the only way is a die grinder with a small carbide tip isally 1/8 or so in dia and grind the pieces the stud removable piece that you said was also broke off is verry hard will not drill out therefore grinding out the pieces is the way to go have had to do this in other cases its slow but about the only way a torch can be used but you would want the head removed and good knowledge of the right tip ect not fun at all I have left hand drill bits do not use the stud removers because they can break and have a mess like yours good luck

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blake

02-20-2001 18:55:36




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 Re: Re: manifold bolt in reply to gene b, 02-18-2001 08:38:26  
thanks for the advice...it looks like I'm in for a long battle. better buy a 12 pack



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The Undertaker

02-17-2001 15:13:23




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 Re: manifold bolt in reply to Blake, 02-17-2001 11:12:49  
Blake:

I'll remember you in my prayers tonight. My sincere advice is not to get panicky, but sit back, relax, think on it. Whatever you do, do it real slow and careful! T.U.



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Phil Auten (TX)

02-17-2001 12:01:30




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 Re: manifold bolt in reply to Blake, 02-17-2001 11:12:49  
Blake,
I hate to be the bearer of bad news, but this won't be easy unless you take the head to a machine shop. If you can weld, try welding a nut to the end of the stud. The heat will usually break the rust free and the nut gives you something to turn it with. If that isn't possible, you will have to drill it out and work out the pieces. If you can get the head into a vise on a drill press, it will be much easier to center the drill bit on the stud. There are left-hand drill bits that work backwards from "normal" bits. Sometimes these will exert enough force to back out the broken piece if the heat is enough to loosen the rusted threads.
If all this fails, drill out the hole oversize and install a heli-coil insert and a new stud. This might be the easiest in the long run.

Good luck,
Phil
Been there, done that!

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JLE

02-17-2001 17:31:18




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 Re: Re: manifold bolt in reply to Phil Auten (TX), 02-17-2001 12:01:30  
I am glad to see your answers, my thought earlier when I read it was to lead him in a prayer, I'm sure, like many others, I've been there!!



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