gerson408

alright so heres the deal i drive a 1991 240sx the car was in a small accident he ran into a wire fence and went into a farmers yard which means rocks were hitting the frame rails no damage the car is straight but i just dicovered one problem im installing my cat rite now and it seems that my header could be bent look at this small gap that shows a fat exhaust leak tell me what it can be here are some photos please help me

98s14inaz

Is there a gasket in there? I can't tell from the pic. It does look like it got tweaked at some point in that car's life. You might be able to double up the gaskets there to fill in the hole or just replace it altogether.

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gerson408

on that pic for that side there is not gasket but also on the other one there is two gaskets and it still doesnt cover it so i think im gonna pick this stock header up from this guy for 20 bucks but i want more feedback before i spend my money

Sileighty_85

Weld it lolz

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gerson408

dont have a welder and thats a cheap fix

gerson408

ok i tried to use gaskets to clear it but it wont work looks like im gonna need a new downpipe

UNISA JECS

One or both flanges are warped so you need new flanges, that happened to mine on my S13.

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spoolandslide

the real question is

wtf is that cat doing there?

go balls out
haha

babowc

weld eeet.

or you can get them re-flanged...
just weld it if you plan on getting anything other than sticking with the stock ka.

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murda-c

hit it with a torch and flatten them out with a hammer and anvil.

or you can hit them with a grinder if you've got mad skills and have lightweight thin flanges.

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gerson408

i might try the angle grinder but how will that flatten it out it would be kind of hard to do that without going to far

babowc

you'll more than likely f uck it up with an angle grinder.
just weld it shut.

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gerson408

im taking it to a exhaust shop tommorow and having them do it also another question lol this is kind of off topic ok i bought this car on may 27 of 2008 and i havnet went to the dmv yet its gonna be hella money to register it huh??

Boost_me

Could you possibly hammer it back straight again?

gerson408

i dont think you can i called this shop and they said its 40 to 50 bucks to fix this alot of money

MELLO*SOS

IMO you're wasting your money and time fixing that, you should take this opportunity to upgrade and pick up a header, test pipe and catback. Deal with the exhaust leak until then.. But if you're doing it for a DD/smog legal car then I guess do what you have to...

gerson408

dude im just trying to get this car registered then smogged then im dumping in a header i already have and exhaust im doing this for smog purpose only man

MELLO*SOS

sucks you have to deal with that I hate spending money and time on stuff that doesn't make the car more fun =/. GL...

You might have some success using a ton of that high temp copper RTV in there. I've done that before for some small exhaust leak, it works for a while... Cheap fix...

gerson408

yeah i know i cant even drive the car around i havnt got it registered since i bought i wanna get it smogged first so that i can get my tags rite there and then instead of driving around with that red sticker that attracts cops

twistedsymphony

I had an exahust leak like that on a car I just needed fixed.

went to autozone and picked up an exhaust leak patch kit basically just came with puddy, I filled the gap and all along the flange with the puddy let it dry and called it a day $10 fix... perfect if you just need it done quick.

if you want to be a bit more pro you could try a "Remflex" gasket the suckers are thick and they can compress quite a bit, more than enough to fill your gap IMO... though you have to order them online so that means waiting for shipping... and they're like $8 a gasket (but worth it IMO) they are reusable though... http://www.remflex.com/

gerson408

and it worked no air came out of the gap???

twistedsymphony

yeah... that just make sure you slop it on good and thick and all the way around.

it's uber ghetto but FTW if you're going to trash the exhaust soon anyway.

I suppose you could take it a bit further and unbolt that part of the exhaust and throw that stuff on thick between the two pipes, then bolt it back up before it hardens... In my case the studs were too rusted to do that and would have needed to be drilled out...

I did something similar to that on another car. I had an 02 WRX and I couldn't get the gasket to seal for the life of me so a plumber friend of mind put some high temp goop on the flange faces, we bolted it back up without the gasket and the thing was like a single solid pipe.

gerson408

wow lol talk about ghetooO!!!! hey i got a quick question though check this out lets say i take it to a exhaust shop and have them reflange it then when i buy a catback exhaust will it bolt up str8 or will another problem occur??

twistedsymphony

maybe... it depends on how good the shop is.

if they just cut the old flanges off and weld on some new ones there's no good way to ensure that they're going to be welded straight they way they were supposed to be.

never mind that but your pipe might be bent funny preventing you from getting your aftermarket exhaust pipes to sit properly anyway.

If you're concerned about that stuff buy a used header in good condition and throw a good quality gasket in there.

I thought you were going to replace the whole dam thing anyway?

los_inc

jb weld the seam shut til you get a new header
-los

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krisdeezy

dude just add more gaskets..thats what i did =]

gerson408

only got money for the catback no header lol

twistedsymphony

I suppose it doesn't matter what you do to fix this as long as you replace the header and CAT at the same time

though finding someone with a used header in good shape shouldn't be difficult at all... crap I see people practically GIVING them away.

gerson408

some one give me one?? lol ill pay shipping .