03-01-2010 | #1 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Header Bolt Battle
Picking up from my last battle with a Mobile 1 oil filter....I am in the midst of a header install.....as the motor was pulled and rebuilt once, apparently the tech that did the headers must have mistaken the head torque specs with the head(er)......Several of these have taken a cheater to get them to move...having high miles the corrosion does not help.
Needless to say there was one bolt that decided it did not wish to depart. The bolt head rounded off when I used the cheater. Heat, bolt extractor socket, etc has not worked. Wondering if the next step is to get an angle grinder to either 1)cut off the bolt head 2)cut the bolt spacer to relieve some of the pressure. Its at least one of the easier bolts to get to.
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
03-01-2010 | #2 |
Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,799
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Re: Header Bolt Battle
So....I assume the headers are still on since the bolt head is still on .......cut the head off (head only or round the head so you can get the heads off) and get the headers removed.
Then work on the bolt.......maybe a bit of heat or all sorts of other possible methods might help once you have the headers removed. With the headers removed you also have a bit more room to work. You do NOT want to break the bolt flush with the block....so heat might be your answere. Last edited by Dynomite; 03-01-2010 at 01:18 AM. |
03-01-2010 | #3 |
Join Date: Aug 2006
Location: Edmonton, Alberta or Phoenix, Arizona
Posts: 2,741
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Re: Header Bolt Battle
Gay....PIA. Sorry buddy.
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There are no limit's mans ingenuity, just as mans ingenuity will never conquer the forces & behavior of this planet...Smokey Y. |
03-01-2010 | #4 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: Header Bolt Battle
Just to be clear...these are the exhaust manifold bolts, whoever put this thing on went alittle overboard on the torque or corrision has seized them. Engine is in the car.
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
03-01-2010 | #5 | |
Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,799
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Re: Header Bolt Battle
Quote:
It would be kind of hard cutting the head of one of those head bolts for sure.... |
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03-01-2010 | #6 |
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Re: Header Bolt Battle
If it is easy to get to, take a grinder and cut the head off, and either use vice grips to get the bolt out, or weld a new nut on and then remove.
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03-01-2010 | #7 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: Header Bolt Battle
Thanks Jeff......
Has anyone ever gotten one of these extractors(sockets) to work, only needed to try one a few times, but never gotten them to work.
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
03-01-2010 | #8 |
Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,799
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Re: Header Bolt Battle
I prefer vice grips and heat as I have never had any luck welding on a new nut especially in a tight space......nut always broke off again and again.....
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03-01-2010 | #9 |
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Re: Header Bolt Battle
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03-01-2010 | #10 |
Join Date: Aug 2006
Location: Edmonton, Alberta or Phoenix, Arizona
Posts: 2,741
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Re: Header Bolt Battle
The liquid wrench is always good. Can try some penetrating oil first if you haven't yet, even though 'Uphill' it will find it's way up into the threads a certain amount at least, can't hurt to try if you don't have bottles handy.
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There are no limit's mans ingenuity, just as mans ingenuity will never conquer the forces & behavior of this planet...Smokey Y. |
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