Is there a cheap/easy fix for a cracked exh. manifold?

[damnslowtsi]

Mine has a considerable crack on it but will have to suffice for a little longer..

Is there any paste-like stuff that I can just push in/around the crack that wouldn't burn off. I tried some stuff similar to JB by a different manufacturer but it was there for a few days only. Is there any other not very involved way to do it? A guy from work promised to bring a mini torch and some kind of copperish wire to do the trick but I 'm not sure if it's gonna stick to a cast iron. Let alone it hasn't happened yet since he said that

 

[psychlow]

Remove it and take it to a muffler shop. They should be able to weld up a temporary crack fix for relatively cheap. It'd hold for a couple months at least, and if they preheat it and cool it slowly, maybe a lot longer.

 

[i jus 8 ur vtec]

yeah go to ur local car yard and get a new mani with lil or no craks if ya lucky for bout 30 bucks

 

[blackGSX2g]

Or you could find a good 2g exhaust manifold in the classifieds to upgrade to.

 

[RoasT BeeF]

You can try to have it braized but that usually doesnt last that long either. Most automotive repair shops can do braizing.

 

[blcknspo0ln]

get it done like mentioned above if it's just a temp fix..

but if i were you it'd just be an excuse to mod

 

[HighPsiAwd]

I'll sell you my 2G manifold for $100

 

[anconover]

if welded CORRECTLY. it should last.

 

[ken inn]

if welded CORRECTLY. it should last.

what this really means is if it is welded CORRECTLY, the WELD will last. the manifold wont. it will crack in other places. get a 2g or evo manifold, they have a lot more nickel in them, and they are way more resistant to cracking. also, change out your studs to stainless, cause they will crack and break, too. that's even MORE fun.

 

[anconover]

manifolds dont always crack constantly, i know people who strictly run a 1g manifold with no problems. Theyre more prone to cracking, but i had a 160k manifold that was in mint condition.

I like to hang on to my money, so id fix it, only because i can do it myself. Itll last, but not forever nor did i say it would.

 

[mntalon_05]

If you were to weld a crack closed, what would be better if you were to do it yourself, stick or wire feed?

 

[truwarrior]

just buy an evo III manny

 

[anconover]

neither stick nor wire feed would hold up worth a damn. Youd be better off with the new mani if thats all you can have done to it.

 

[Denji]

I have a spare 2g exhaust manifold, i'll let it go real cheap if you want it, pm me.

 

[Defiant]

Yes. Buy a new one.

For some reason, turbo manifolds don't much take to repairs.

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Oh, and this isn't really what we mean by "Advanced 4G63t Tech".

Moved.

 

[damnslowtsi]

Thanks for all the replies. I really need it to last another couple of months or so. I 'm planning on upgrading it, just a bit low on cash now. It smells in the cabin horribly under boost. I 'm scared to poisonate myself with all that carbon monoxide that my poor tooning produces

Somebody told me a while ago that parts stores have some fix in a form of a metallic colored liquid/paste that would do the trick at least for some time. That stuff was specifically for ex. manifold not a JB or similar epoxies. I asked an Autozone but they didn't have it (or were lazy to look for it) so I thought may be smb. can shed some light on that.

 

[Defiant]

For those temperatures, I believe the substance is called "Magma".

 

[Boostmonkey]

Sorry def, but i really must know. Was that a joke? as in volcanic magma? its a little far-fetched, but i wouldnt mind knowing if im going to look like an idiot if i ever need to get 'magma' from autozone. hahha thanks

 

[Slipstream]

Sorry def, but i really must know. Was that a joke? as in volcanic magma? its a little far-fetched, but i wouldnt mind knowing if im going to look like an idiot if i ever need to get 'magma' from autozone. hahha thanks

:laugh:

If you gents insist on repairing your manifolds try this stuff
http://www.cotronics.com/vo/cotr/pdf/7032.pdf

 

[Defiant]

I don't think anything will work to try and fix a turbo manifold, short of replacement. Once they've gotten to the point that they start cracking, there's not enough life left in them to revive. Any putty will be blown out by expansion by heat, and the pressure of the exhaust.

 

[91Bomb]

Buy a used 2g mani -- they're very cheap in price and they don't crack like the 1g's and have a better flow design. -OR- call Tallahasee mitsu and get a new 2g for $150. I agree that welding a cracked 1g is a lesson in futility (fix 1 crack 2 more appear) -- tried this 1 or 2 times myself beause my local dealer wanted $400 for a new 1g manifold. I eventually bought a new 'MADE IN CHINA' 1g mani for $100 and after a year it was actually crumbling to pieces so I bought a used 13g turbo and manifold 2-1/2 yrs ago for $65 from a NYCCDSM member and both units are still top notch.

 

[BOOSTn20psi]

This is what I've bought for my crack mani.... Go to NAPA its call Hi-Temp Metal Repair Compound. This stuff gets stronger with heat. This stuff is easy to use. My mani worked fine for know.

 

[91Bomb]

This is what I've bought for my crack mani.... Go to NAPA its call Hi-Temp Metal Repair Compound. This stuff gets stronger with heat. This stuff is easy to use. My mani worked fine for know.

Yeah, that sounds like the stuff I used -- as soon as I started the engine it vaporrized into thin air. :thumbdown: