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Old 05-05-2009, 07:43 AM   #1
colorfull
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Default TWE header hits on frame

I just installed my TWE header, and it sometimes hits on the driver's side suspension frame, the part where the lower control arms attach.

Any suggestions on how to fix this situation?

I don't want to wrap the header since I'm living in Canada and the roads are salted during winter, and I'm afraid the wrapping will just cause the header to corrode.
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Old 05-05-2009, 08:18 AM   #2
GEE-OTTO
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Check the steering arm as well as the lower control arm I have heard of this similar issue and all it required was a simple slight bending of that arm with heat and a 2lb hammer if that doesnt help you can always get hi temp silicone and coat that area that knocks to make a soft part so that if it does knock it isnt loud
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Originally Posted by colorfull View Post
I just installed my TWE header, and it sometimes hits on the driver's side suspension frame, the part where the lower control arms attach.

Any suggestions on how to fix this situation?

I don't want to wrap the header since I'm living in Canada and the roads are salted during winter, and I'm afraid the wrapping will just cause the header to corrode.
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Old 05-05-2009, 12:48 PM   #3
rougeben83
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I was warned that this could happen if you use the TWE's, must be the jig they use to make these things. I didn't have a problem but the guy that told me about this issue had the same car, same subframe and same "street" header as me and he had to get a spacer made to stack on the header gaskets to get them to clear.

You can try double stacking the gaskets first to see if they will clear.
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Old 05-05-2009, 01:36 PM   #4
blernin41
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they sell some DEI waterproofing spray at autozone to coat wrapped headers.
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Old 05-05-2009, 03:32 PM   #5
Storm
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I think I dimpled mine with a big impact socket and a BFH. It was many-many moons ago....

Jay
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Old 05-05-2009, 03:50 PM   #6
jeisen
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Mine fit alright. Didn't clear the skidplate though.
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Old 05-05-2009, 06:34 PM   #7
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My 07 had the 4-2-1's and they have lots of clearance everywhere. And the stainless TWE uses wont corrode before your car is dust, salt/no salt, wrapped or not.
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Old 05-05-2009, 09:28 PM   #8
colorfull
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Mine is the 4 into 1...
I tought about harder engine mounts, but this would be an expensive fix...
I'll get under the car next WE, and if i can't fix the rattle with a hammer I'll probably end up wraping it, we'll see.

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My 07 had the 4-2-1's and they have lots of clearance everywhere. And the stainless TWE uses wont corrode before your car is dust, salt/no salt, wrapped or not.
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Old 05-06-2009, 08:14 PM   #9
RaceFaceXC
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wrapping it will be a very short term fix if it is still contacting the structure in question. That header wrap will be eroded be whatever its hitting in short time and then the metal on metal sound will be back. And the forces from the header/structure bumping together isnt good for anything in the long term. Id see if the header/structure can be modified to provide some clearance. personally id fab up a spacer just thick enough to get the header flanges away from the ports on the head just enough to provide clearance everywhere else before i started dimpling the headers themselvs, provided the studs are long enough. have to use two gaskets per head that way, though.
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Old 05-07-2009, 12:22 AM   #10
colorfull
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Good idea about the spacers! and you're right about the header wrap, it'll go away in no time.
I'll check the studs lenght this WE to see if i can fab a spacer and whether it will help or not, and report back here with pictures.
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Old 05-07-2009, 07:22 PM   #11
RaceFaceXC
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i was thinking, depending how much you have to move the header, you could try stacking gaskets. I don't know how well they wopuld seal against eachother, though? Be much easier than fabbing up a steel spacer, especially if you dont have the resources/tools.
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Old 05-08-2009, 05:14 AM   #12
rougeben83
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Quote:
Originally Posted by RaceFaceXC View Post
i was thinking, depending how much you have to move the header, you could try stacking gaskets. I don't know how well they wopuld seal against eachother, though? Be much easier than fabbing up a steel spacer, especially if you dont have the resources/tools.
Quote:
Originally Posted by rougeben83 View Post
I was warned that this could happen if you use the TWE's, must be the jig they use to make these things. I didn't have a problem but the guy that told me about this issue had the same car, same subframe and same "street" header as me and he had to get a spacer made to stack on the header gaskets to get them to clear.

You can try double stacking the gaskets first to see if they will clear.


Get a machine shop or order from one of the places that sells subaru header flanges and use those as spacers.
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