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exhaust manifold crack

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rhohan72

15+ Year Contributor
30
0
Mar 4, 2004
Orem, Utah
car is: 93 eclipse gs.

i've always had an exhaust leak. when working on the car when it was dead cold, having someone else start it so i could look under the hood, i could see exhaust come out while first starting the car. i haven't done much with it, as this car cost 300 buck and was bought to get me to and from work. i decided to fix it. i was hoping it was a simple gasket issue, so i picked one up, took off the heat sheild, and found two 2inch cracks in the top of my exhaust manifold. they don't look to be too "open", but i have a few questions.

1) as this car spent 300 bucks, i don't really want to be spending much more. My g/f's dad has access to professional welders and offered to have them weld it for me. Is this sufficient, or is it better to just get a replacement?

2) is a stock replacement better for this car, or an aftermarket one (if offered). i know i'm not going to get a whole lot of power out of it, so this question should be answered with price in mind. is it cheaper to find a stock replacement, or to get an aftermarket header. (i'm not a huge fan of junkyard parts, here in utah, so i would rather replace).

3) i like my poor 136 hp 2.0 n/a to run as well as it can. how much horse, realistically speaking, will i lose with this sort of exhaust leak. i do keep up with other eclipses, i raced a 2g gs and kept up with him (got a foot behind, missed the 3rd gear shift, paying more attention to not killing myself than the rpm), so i don't think i am too far behind what i should be at as far as speed.

i appreciate it in advance.
 
If you want to get it done cheeply, just have your Dad's friend weld it up. Just make sure that they stress relieve the crack (drill a hole at each end) so it doesn't open up further.

Also make sure the flanges are true (i.e. not warped). If they are will cost ~$50 for a machine shop to grind down.

FYI.. there are many "cheep" aftermarket exhaust headers out there on eBay if you're willing to spend a couple 100.
 
k.. i will just have him do it then. he works at a pipe fabrication company, so i am sure he can get a machinist there to do everything i need on it. just wanted to make sure that was an okay option.
 
It's nice to have the "in" with a welder. My neighbor manages an HVAC duct fabrication plant and has all kinds of cool stuff I can use. Good thing he likes cheep beer :D

BTW.. at a minimum make sure to disconnect your battery if he's welding the manifold while instralled on your car. Better yet disconnect the ECU. Take it from someone who knows, shortcuts are not worth the risk.
 
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