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Old 10-16-2003, 05:07 PM   #1
lag
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Default Removal of exhaust heat shields, bad or no problem?

My heat shields make my Suby sound like a car less than it is. Has anyone removed thier shields from the manifold back or which ones have you removed? I know it shouldn't be but is there any adverse effect of removing the shields?
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Old 10-16-2003, 05:14 PM   #2
Cajual
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When I had my ej25, I had all the heat shields torched off because they were rattling so badly. Just don't park on the grass
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Old 10-16-2003, 05:38 PM   #3
KD7000
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I've cut or ground off at least half the heatshields, because of incessant rattling.

I try not to park on tall grass.

-Brian
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Old 10-16-2003, 06:59 PM   #4
monovich
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I don't have my heat shields. They rattled like crap.
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Old 10-16-2003, 08:16 PM   #5
subiekid
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took them off when the did the motor transplant.
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Old 10-16-2003, 08:30 PM   #6
nitrohuffer
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Whats the best way to get rid of them?
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Old 10-16-2003, 09:43 PM   #7
subiekid
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muffler shop, they can use an air saw. the bolts will all be rusted and striped.
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Old 10-16-2003, 09:48 PM   #8
Legacy777
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I need to take mine off....they're driving me nuts......
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Old 10-16-2003, 11:07 PM   #9
Kohburn
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was wondering what that noise was - rarely happens so i hadn't gotten around to checking it out yet.. maybe i can tack weld the part that is rattling to something solid..
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Old 10-17-2003, 12:09 AM   #10
NiTRoN
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my stock header ones were rattling.. all other are fine.. wasn't really concerned because I did replace headers about month later.. now nothing rattles.. there are still all under the body and on the catalityc conv... but there i had to re-do the clamps and replace bolts..
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Old 10-17-2003, 08:59 AM   #11
Legacy777
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the exhaust guy that did my muffler tried to weld the shield on to the pipe and pretty much just put a nice hole in my mid-pipe.

If the bracket holding it on is rusted, you wouldn't really be able to weld it to the pipe too well. You could try though.
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Old 10-17-2003, 12:39 PM   #12
98GTlegacy
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I was able to stop the rattling by clamping the shields down to the pipe with some universal exhaust u-clamps.
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Old 10-18-2003, 04:10 AM   #13
NiTRoN
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Quote:
Originally posted by legacy777
the exhaust guy that did my muffler tried to weld the shield on to the pipe and pretty much just put a nice hole in my mid-pipe.

If the bracket holding it on is rusted, you wouldn't really be able to weld it to the pipe too well. You could try though.
u would have to use gas welder..

otherwise it would just put big hole in pipe..
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Old 10-19-2003, 05:44 PM   #14
Legacy777
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he did use a gas welder....but he still put a hole in the pipe.....like I said....I was not impressed with their work......
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Old 10-19-2003, 11:18 PM   #15
Kohburn
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Quote:
Originally posted by legacy777
he did use a gas welder....but he still put a hole in the pipe.....like I said....I was not impressed with their work......
can do fine work with mig also just have to use the right settings - but hey if clamping works..
i still have to check out the situation before i decide what to do..
so its the heat shield at the cat? that you guys have been dealing with?
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Old 10-20-2003, 06:04 AM   #16
NiTRoN
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kohburn

I'm using stock dual cats and yes.. I still have heat shield on it.. these suckers can get really hot.. much hotter than exhaust pipes... Headers - borla the one i use, nope don't have shield since isn't recommended by mfg. rest of the car i have only heat shield on underbody of the car, not on the pipes...
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Old 10-21-2003, 10:40 AM   #17
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I have heat shield rattles on mine too. Will removing the heat shields not damage the the steering rack rubber boots above the pipe?
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Old 10-21-2003, 12:03 PM   #18
NiTRoN
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Quote:
Originally posted by Mericet
I have heat shield rattles on mine too. Will removing the heat shields not damage the the steering rack rubber boots above the pipe?
I've been running with my off for over 2 months now.. and no problems.. but I have borla headers.. and the rear portions of them cools much faster than stock which are from cast iron.
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Old 10-21-2003, 06:39 PM   #19
970subaru
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weeelll... I slapped a metal saw in my skill saw and got under there and made some sparks. it was damn fun. later used the stainless fora few projects.
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Old 10-23-2003, 08:21 PM   #20
Mericet
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Well, I tried the universal U clamps and it did not work for me. Guess I will just remove the shields.
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Old 10-23-2003, 10:15 PM   #21
NiTRoN
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Quote:
Originally posted by Mericet
Well, I tried the universal U clamps and it did not work for me. Guess I will just remove the shields.
U clamps will not always work.. subaru uses different clamps.. which are on the inside of the shield..

Look @ #8 on the picture, kinda C with the wings clamps.
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Old 10-24-2003, 05:40 PM   #22
jey
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I thought my heat shield was rattling too, but upon inspection with the car on a hydraulic lift it was one of the exhaust clips that had broken in 2 and was rattling up against the cat converter. Got it welded it back together, and now it's great. Just thought I'd pass that along...
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Old 10-26-2003, 10:35 AM   #23
Mericet
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Quote:
Originally posted by NiTRoN
U clamps will not always work.. subaru uses different clamps.. which are on the inside of the shield..

Look @ #8 on the picture, kinda C with the wings clamps.
Thanks, but it was not the cat shields rattling.
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Old 10-26-2003, 11:24 AM   #24
WAFlowers
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I found that creative use of pipe clamps solved the rattle for me ... for a while. I've got to crawl under there and tighten one of them again.
--
Bill
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Old 10-26-2003, 05:13 PM   #25
nitrohuffer
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I went under the car and tapped around with a rubber mallet and found an off sounding one. I took it off and it's nice and quite now.
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