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#4618648 - 12/30/17 10:04 AM Permanent Red vs High Temp High Strength Loctite?
Hemispheres Offline


Registered: 01/14/17
Posts: 381
Loc: Virginia
Yes Iím back again with another exhaust related thread. Just extracted a stud I snapped last Sun using some shade tree tactics. Donít ever wanna touch another friggin exhaust pipe again.

This time around using manufacturer torque specs. However the only loctite I have available is medium blue and high strength red/needs a torch to remove which I donít have. Iím thinking heat cycling itself may be enough to negate needing a torch but donít wanna chance it.
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#4618662 - 12/30/17 10:17 AM Re: Permanent Red vs High Temp High Strength Loctite? [Re: Hemispheres]
old1 Offline


Registered: 01/04/11
Posts: 1001
Loc: Columbus Nebraska
I don't get the statement that you and many others have used that you need a torch to remove fasteners that have red loctite on them. I have never used anything but red loctite, and have never had any trouble removing a nut or bolt that has it. Sure it turns harder, but never needed heat. Actually I would think that it wouldn't even hold up under the heat of exhaust.
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#4618666 - 12/30/17 10:20 AM Re: Permanent Red vs High Temp High Strength Loctite? [Re: Hemispheres]
Hemispheres Offline


Registered: 01/14/17
Posts: 381
Loc: Virginia
Thatís what I figured but believe me when I say after the last few weeks Iím done with exhaust.
_________________________
2009 Buick LaCrosse (3800 Series III) - 137,000 miles.
PZ Plat HM/Mobil 1 HM
Bosch/Purolator/Mobil filters

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#4618823 - 12/30/17 01:04 PM Re: Permanent Red vs High Temp High Strength Loctite? [Re: Hemispheres]
NibbanaBanana Offline


Registered: 05/23/16
Posts: 292
Loc: New England
I can't imagine any type of Loctite surviving an exhaust manifold.

My experience with permanent Loctite is that without heat, you're not going to remove that fastener. Unless you machine it out. It only takes a propane torch. No big expense.
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#4618850 - 12/30/17 01:32 PM Re: Permanent Red vs High Temp High Strength Loctite? [Re: Hemispheres]
SHOZ Offline


Registered: 06/28/03
Posts: 5751
Loc: Illinois
Why are you not using anti-seize for exhaust bolts?
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#4618858 - 12/30/17 01:43 PM Re: Permanent Red vs High Temp High Strength Loctite? [Re: Hemispheres]
Trav Offline


Registered: 11/20/06
Posts: 18911
Loc: MA, Mittelfranken.de
Originally Posted By: Hemispheres
Yes Iím back again with another exhaust related thread. Just extracted a stud I snapped last Sun using some shade tree tactics. Donít ever wanna touch another friggin exhaust pipe again.

This time around using manufacturer torque specs. However the only loctite I have available is medium blue and high strength red/needs a torch to remove which I donít have. Iím thinking heat cycling itself may be enough to negate needing a torch but donít wanna chance it.


Never Seize not loctite on exhaust studs, use copper nuts if they are available.
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#4620127 - 12/31/17 09:02 PM Re: Permanent Red vs High Temp High Strength Loctite? [Re: Hemispheres]
Hemispheres Offline


Registered: 01/14/17
Posts: 381
Loc: Virginia
Iím asking because my service manual says to use gm 12345493 which should be loctite 262. I used blue on the lower intake bolts with no issue though despite it calling for the same thread locker.
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2009 Buick LaCrosse (3800 Series III) - 137,000 miles.
PZ Plat HM/Mobil 1 HM
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#4620343 - 01/01/18 08:19 AM Re: Permanent Red vs High Temp High Strength Loctite? [Re: Hemispheres]
Silverado12 Offline


Registered: 02/26/13
Posts: 3118
Loc: Central Virginia
FWIW I use copper anti seize for anything exhaust related.
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07 Harley Dyna Street Bob 96 c.i. 6 sp.
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