JoeDirt

The very last bolt on the drivers side broke off on what would have been like the second last turn before it was snug . It was going in funny from the get go , all the other bolts went in a bit snug but with no real problems . This one didnt feel right . I pulled out and tried a bunch of different bolts from the other areas off the headers and none felt any better . I figured I was just being over paranoid but it snapped off inside the head I almost think the factory had cross threaded it because it was a BITCH to get out . I hand thread all my bolts in first too , something wasnt right .

Anyways , can I just leave it snapped off ? All the other bolts are nice and tight . The headers are kooks so they have a massive fat header flange to keep pressure on not some bendy peice of tin . Anyone experience this ? Id like to just leave it until I get a set of heads next season if possible ??

Thanks guys .

jrp

iTrader: (16)

i think it'll hold but i guess you'll find out , did you use new bolts or old bolts?

JoeDirt

I reused the old bolts

jrp

iTrader: (16)

i reused my old ones and they were fine, old gaskets as well and they had 95k miles on them.

Dope

iTrader: (2)

There's only one way to find out

Dope

DrkPhx

iTrader: (15)

It will leak and cause your fuel trims to be off. I broke mine on the same exact bolt.. I did have it fixed eventually,but I ran it like that for a couple of months.

JoeDirt

How much exhaust gas presure do you think the headers get exposed to ? The more I think about it the more I think it should be ok unless theres ALOT of pressure on it . Those are some fatty flanges . Keep your fingers crossed for me

JoeDirt

Oh crap , what kind of headers ?

JoeDirt

Heres a pic of the flange .

ShadowLightCSU

iTrader: (1)

Once I tried running a y-pipe with two bolts attacking to the manifolds, totally didn't even get close to working.

DrkPhx

iTrader: (15)

I have the MAC headers. It's not the flange thickness that seals, but the pressure from the tightened bolt clamping the flange and gasket to seal against the head. Mine seemed fine at first, then a couple of months later I could see black soot on the cylinder head right by the bottom side flange with the broken bolt. Like I said I ran mine for months like that until I pulled the heads because it was too deep in the hole to pull out.

JoeDirt

Yeah your right it will probably leak . I was thinking the thicker flange would be less prone to release that pressure from the five good fasteners over a thin flange . I was doing some searching and I think Im going back them off and run high temp sealer around the last tube .

onyxxtreme

iTrader: (4)

a friend of mines' 93 TA had the last bolt on the driver side break also
his was fine for a few months, but eventually the leak got worse and worse
before we pulled his motor out, it got to the point where it sounded like a really loud, high pitch whistle was coming from under the hood
it was pretty damn annoying

SSactionLs1

my rear pass bolt is loose and my front driver just didnt go in...fine so far..but ill prolly fix it this week..may be why im only getting 200m per tank

ShadowLightCSU

iTrader: (1)

I bet that's your foot