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Old 02-23-2013, 01:44 PM   #1
manofhonor
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Join Date: Jan 2008
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world rally blue

Default Downpipe nut/bolt question

So I just ordered my full exhaust and have a question about the nuts and bolts. I know that they are going to b extremely hard to get off. I've already got a full can of pb blaster to try and loosen them, but what are some other tips and tricks to get the nuts and bolts loose? I really do not want to take it to a shop. I have done work on my previous wrx, sway bar and end link installs, so I know what I'm doing as far as the actual install, just want some help on getting everything loose. If it helps, I have an 07 wrx. Thanks in advance
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Old 02-23-2013, 01:47 PM   #2
Loyale93
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You're taking them off on an '07? They shouldn't be all that bad, honestly. Plenty of PB Blast and a good breaker bar should be all you need. The worst ones are going to be the ones under your car. But since you're doing a full exhaust, you can just take the whole system off in two pieces. Downpipe, and catback.
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Old 02-23-2013, 01:48 PM   #3
Bo0stin5STI
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Only use a 6 point socket and a proper sized wrench.

They were fairly easy to remove from my 05. No issues or broken bolts.
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Old 02-23-2013, 01:49 PM   #4
Bo0stin5STI
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Oh yea, try without PB Blaster first. You may be surprised at how easy they will be.
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Old 02-23-2013, 01:50 PM   #5
conklin_02
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IF you have a breaker bar, they are not too terrible to get off. Whenever i break a bolt, i try to loosen the bolt, than tighten the bolt, loosen the bolt, than tighten the bolt. it will help with "un-locking" the threads. Dont keep doing this if the bolt is able to unscrew right away, just do it to loosen the threads
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Old 02-23-2013, 02:01 PM   #6
manofhonor
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I'm keeping my fingers crossed that since my car isn't too old and doesn't have that many miles that everything won't be too hard to remove, but we will see. I had someone tell me to tap them with a hammer. What would that do? Another questions, I don't have a torque wrench, so how hard should I tighten everything to the turbo?
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Old 02-23-2013, 02:08 PM   #7
Napalm3nema
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Tighten until firmly snug and be sure to get a NEW gasket from a local Subaru dealership. The gasket is one use pressure gasket, so don't try and re-use the old one. They are only like 5 bucks.
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Old 02-23-2013, 02:09 PM   #8
HinshawWRX
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Make sure to clean all the PB blaster off the turbo/exhaust when your done.
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Old 02-23-2013, 02:12 PM   #9
424wrx
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Quote:
Originally Posted by HinshawWRX View Post
Make sure to clean all the PB blaster off the turbo/exhaust when your done.
no doubt. makes for a nice smoke show if you dont.
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Old 10-23-2013, 06:37 PM   #10
sime
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hell my nuts came off by themselves.....nice crappy NJ roads. I have a TXS bellmouth downpipe and the bottom right nut is up against it. I had a syko downpipe on a rb20det and it came with arp 12point nuts for tight areas. First experience with 12pt nuts and now I am a fan. From what I have read they also take more torque and less chance of stripping nut. BTW there has always been alot of hype around ARP but damn is there stuff quality and worth it. Yes I know its an old thread.
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Old 10-27-2013, 06:49 PM   #11
sedonarex13
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I used pb blaster and a 3/8 ratchet and they came off very easy
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Old 10-27-2013, 07:22 PM   #12
jm02466
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Spray the nuts and bolts liberally with PB (or I've been using the WD-40 Blue or something like that recently. Works as well if not better than PB) the night before you do the work and then again when you start the actual work.
Also, having a blow torch to heat up stubborn nuts is handy.
And as others have said make sure you use ONLY 6 pointed sockets and wrenches of the CORRECT size. (No SAE substitutions)
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Old 10-27-2013, 09:44 PM   #13
MedicDG
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Make sure you apply the torque to nut not the bolt and use PB blaster.
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Old 10-28-2013, 11:04 AM   #14
hudsonvalleybugeye
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It will smoke, but sometimes I like to spray things down for a few days while using the car everyday, a few heat cycles with the pb blaster almost never fails. like stated before, a breaker bar or a nice piece of steel pipe that will fit over the handle of your socket wrench will do wonders.
I will note to make sure that the exhaust comes with new hardware or go out and get some. usually the flanges of aftermarket exhausts are much thicker than oem and the bolts out of the exhaust itself may be too short. the down pipe to turbo hardware should be ok though.
Good luck and wear mechanics gloves, if you have them, really nice grip and saves a little bit of swearing, but then again, if the car has spent its life in California, those bolts should come off no problem.
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