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Old 11-18-2012, 03:04 PM   #1
captbo
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Exhaust manifold bolt

My exhaust system came friday and I began to spray the stock collector or flange bolts with PB blaster all I can see id the botton Stud and nut!, is it infact a stud or is it a "replaceable" bolt ! I am worried about breaking it!
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Old 11-18-2012, 04:13 PM   #2
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Yes, it's a thread in stud. Heat and penetrating oil and it should come out of the manifold.
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Old 11-18-2012, 04:45 PM   #3
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Thanks Big Bud
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Old 11-18-2012, 09:52 PM   #4
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Spray them a couple more times before you go at them. When you do start take the wheels off, it will give you better access to them.
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Old 11-19-2012, 10:18 AM   #5
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Will do Thanks Rick !
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Old 02-10-2013, 07:57 PM   #6
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manifold bolts

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Will do Thanks Rick !
I have found as hard as it is to remove exhaust manifolds . I replace the bolts---- with studs then I put double brass taps on them --one to make sure the otherone does not back off.Plus I add a lock washer and I have not had anymore trouble taking them off later on down the line.
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Old 02-14-2013, 08:31 AM   #7
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Use deep creep made by seafoam, best canned stuff I've ever seen. Keep a small torch handy also.
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Old 02-14-2013, 10:54 AM   #8
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Use deep creep made by seafoam, best canned stuff I've ever seen. Keep a small torch handy also.

X2 been using it exclusive for almost 10 years makes everything else like water
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Old 02-14-2013, 12:03 PM   #9
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Heat helps, run the engine for awhile to heat up the bolts.
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Old 02-15-2013, 01:10 AM   #10
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Heat helps, run the engine for awhile to ensure that you burn the shit out of your hands.
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Old 11-30-2013, 01:40 AM   #11
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Easiest way to get out studs is the 2 nut method
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Old 01-04-2015, 10:49 PM   #12
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Can you elaborate on the two nut method? I've gotta change the passenger side manifold in my 79. I am anticipating some struggle.
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Old 01-04-2015, 11:13 PM   #13
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heat it up with a torch
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Old 01-04-2015, 11:32 PM   #14
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Two nut method - Put one nut on about 1/2 - 2/3rds of the way on the stud, follow with another nut. Tighten the two nuts against each other, then put your wrench on the first nut you installed to remove the stud (hopefully).
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Old 01-04-2015, 11:34 PM   #15
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Can you elaborate on the two nut method? I've gotta change the passenger side manifold in my 79. I am anticipating some struggle.
you install 2 nuts on the stud threads and tighten them onto each other ,then they act like a bolt head for helping turn the stud

if you have manifold off and need to remove stud, weld a nut to the stud with an arm welder,the heat will loosen it and the nut will give you something to grab
also, before you try removing the nut off the stud, run a thread die on the exposed threads,then try tightening it a bit first, the nuts will usually go a bit tighter easier than loosing first

and lots of penetrating oil
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Old 01-05-2015, 12:32 PM   #16
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I always use brass nuts when redoing an exhaust.
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