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Old 05-19-2017, 03:44 AM   #1
WagonMafia206
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Header/Downpipe Removal 1 Piece Possible?

Was trying to remove my OEM downpipe and header(Not sure if CB7 or Prelude since its swapped). Im starting to strip my nuts that hold the downpipe and header together.


~Is it possible to remove these pieces connected?~


No, I havn't used PB blaster yet, or a breaker bar. I figure if they're stripping just on a 1/2 drive socket the breaker wont help. Possibly the PB will, but it seems rusty as heak.
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Old 05-19-2017, 05:16 AM   #2
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Sorry, there is no way to get them out in one piece.

Heat is your best friend when it comes to working on stubborn exhaust studs and nuts. I use benz-o-matic MAPP Gas (Yellow). Heat the nut up cherry and hammer on the next size down socket. Should back off without any issues.
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Old 05-19-2017, 05:14 PM   #3
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Quote:
Originally Posted by GhostAccord View Post
Sorry, there is no way to get them out in one piece.

Heat is your best friend when it comes to working on stubborn exhaust studs and nuts. I use benz-o-matic MAPP Gas (Yellow). Heat the nut up cherry and hammer on the next size down socket. Should back off without any issues.
Well thats not too bad. About how long to heat up the bolts under heat?
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Old 05-19-2017, 09:16 PM   #4
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Usually if I'm using MAPP gas I only have to heat it up for a minute. If it doesn't break loose right away, just heat it up for a bit longer. After you heat it up it shouldn't take much pressure to break that initial hold.
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Old 05-22-2017, 12:02 PM   #5
G. Wiffington
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Do you have access to air tools? An impact gun makes it 1000 times easier as well.
I know when I disconnected my header & downpipe I had to let my impact gun really get at
the bolt for a minute or two so that it could break the bolt loose (along with a ton of PB Blaster).
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Old 05-22-2017, 04:41 PM   #6
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Couldn't you drop the entire thing in one piece if you removed the front crossmember and lifted the front of the car sufficiently?
I believe there was at least one expensive H22 header that was a one-piece design. Installing it was a hassle, but doable. I'd assume if a performance header with larger primaries can be installed that way, the factory part must be able to come out the same way.

Still, getting it out in two pieces would probably be the easier route, even if you have to use fire to do it.
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Old 05-22-2017, 04:51 PM   #7
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You would probably need to lift the car at least 2' for it to clear enough to drop it through the bottom. If one has access to a hoist, you could drop the cross member and drop the header though the bottom.
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Old 05-23-2017, 08:42 PM   #8
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If it can't be lifted enough, could one get enough room by removing the lower cross member, radiator, and upper radiator support?
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