CO_CReX

Ok I have an OBX top mount manifold which has a T4 flange, and I have a Garrett t3/ gt40 which has a T3 flange. I am running a BMCrace T4-T3 adapter plate which seemed to work great until I cranked the boost and now I am blowing out gaskets left and right.

Here is a pic.


I am going to order up some new gaskets but I am tired of them blowing out.

Can anyone suggest what I can do to solve this problem? Any help would be greatly appreciated!


And before anyone asks, No I am not going to get a new manifold (i love this one) and I just got this turbo so im not getting a new one of those either.

DLB1994

run no gasket like most people do, to be on the safe side get the manifold flange milled flat , that could be why since its a cheap mainfold

Bailhatch

yup, you don't need one

Flashmn

I can see bolt patterns on the gasket from the adaptor plate. Also I can see that its been leaking. Use shorter bolts, the ones you have are protuding and thats the reason its not sealing, its blowing by the gasket and that will burn it, turbo gasses are HOT.

CO_CReX

So should I even run a gasket anymore than?


And I noticed that as well, I will definately pick up some shorter bolts.

Thank you!

97grnrs

if u dont use a gasket use copper silicone, only copper though.. put enough so it seals.

CO_CReX

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 97grnrs &raquo;</TD></TR><TR><TD CLASS="quote">if u dont use a gasket use copper silicone, only copper though.. put enough so it seals. </TD></TR></TABLE>

Where can I find this stuff?

Flashmn

I'd use seals...

RCautoworks

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 97grnrs &raquo;</TD></TR><TR><TD CLASS="quote">if u dont use a gasket use copper silicone, only copper though.. put enough so it seals. </TD></TR></TABLE>

I'm pretty sure it still gets to hot for copper spray.

tannerLSt

ya run no gasket , i never have

Blown90hatcH

Did you check to see if the OBX flange is square or pulls square after you tighten it?

Tippyman

Woah, def. need shorter bolts. you are probably pushing the flanges apart with those.

Crx Jimmy

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tippyman &raquo;</TD></TR><TR><TD CLASS="quote">Woah, def. need shorter bolts. you are probably pushing the flanges apart with those.</TD></TR></TABLE>

that ^ or distorting the gasket enough for it to start a leak, get shorter bolts and everything milled flat and it shouldnt leak.

lambertincorp

use red silicone

SPOOLINmatt

your surfaces arent true or you arent tightening the mounting bolts enough. thats all there is to it.

Chiovnidca

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SPOOLINmatt &raquo;</TD></TR><TR><TD CLASS="quote">your surfaces arent true or you arent tightening the mounting bolts enough. thats all there is to it. </TD></TR></TABLE>
The bolts bottoming out on the big gasket dont help much either.

RACEPAK

i'm using a gasket, never had problams with it and it never leaked,

1 ply (used it 3 times)

Flashmn

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">use red silicone</TD></TR></TABLE>
Lol in an exhaust system? They have paste for exhaust systems, which is not silicone, but even they wont last over 6-800C....

lambertincorp

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Flashmn &raquo;</TD></TR><TR><TD CLASS="quote">
Lol in an exhaust system? They have paste for exhaust systems, which is not silicone, but even they wont last over 6-800C.... </TD></TR></TABLE>


haha thats surprising to know cause it workson my 400whp car and its used on some 500+whp lexus is300's at the shop i go to but u know everything my bad

Dunc

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lambertincorp &raquo;</TD></TR><TR><TD CLASS="quote">haha thats surprising to know cause it workson my 400whp car and its used on some 500+whp lexus is300's at the shop i go to but u know everything my bad </TD></TR></TABLE>

The amount of whp has nothing to do with this situation. Exhaust gas is hot no matter how it's produced.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CO_CReX &raquo;</TD></TR><TR><TD CLASS="quote">Can anyone suggest what I can do to solve this problem? Any help would be greatly appreciated!</TD></TR></TABLE>

The real solution is simple. Make sure both surfaces are flat and true and then bolt them together without a gasket. Turbo to manifold gaskets, pastes, silicones, etc. are a waste of time, money, and energy....and that's a fact. But if you really want to waste all three for no reason then by all means waste away.

Also, use some stainless steel bolts with "star" style locking washers. That is assuming your manifold is made out of stainless steel as well. Problem solved.

lambertincorp

everybody has a right to their OPINION

Flashmn

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">but u know everything my bad</TD></TR></TABLE>
well obviously I know more than you...

Silicone lasts to about 250C temps the normal red RTV one atleast, thats nothing compared to the temps of a turbo exhaust, even comparing a N/A car.

Yeah everyone has a right to an opinion, but this want an opinion it was just false information.

93CX

My first guess would be that the flange on your OBX manifold needs to be resurfaced. Try running no gasket and see what happens

kdawgy2k1

2 votes here for RED RTV SILICONE !!!
IT WORKS LIKE A CHAMP

Root of all Evil

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kdawgy2k1 &raquo;</TD></TR><TR><TD CLASS="quote">2 votes here for RED RTV SILICONE !!!
IT WORKS LIKE A CHAMP
</TD></TR></TABLE>

And it makes you feel good when the fumes from it burning get in the cabin.