So, I've been running S4 TII intake manifolds and wiring on an S5 TII block on my car, and everything's been wonderful the last coupla years. Except for the part where my manifold o-rings melt and rip apart and I start leaking coolant from the top of the block...





Old gasket's soaked and ripped to ****, and I can't tell the difference between the two from this lumpy mess.











Just need to know which lower intake manifold gasket to use (manifold to block gasket)?











Mazdatrix part number would be most appreciated.











It's gonna have to be between





A.)





Part#13-111D-N318





or







B.)





Part#13-111A-N370









thanks,









-A.Earl





















P.S. What's the cheat code to properly put in the manifold coolant o-rings without pinching/ripping them?...





P.P.S. ...and why the **** do I need two o-rings when there's only one hole on the S4 TII lower intake manifold (goes to turbo, me guesses)?There's two holes on the S5 TII block though, so I'm also guessing that's my answer.

 

you can put 20mm freeze plugs in the block coolant passages and never have to worry about o-rings again. if that is where the coolant is sourced for the turbo then you might want to re-route it to the heater core lines(if your using a water cooled turbo). i have run 20mmx12mm freeze plugs in every motor i have owned, i hate those goddam o-rings.





isaac

 

those orings in the turbo motor provide coolant flow to the turbo. As far as a gasket difference, the only difference between the two gaskets are for emissions. If you arent running any emissions on the motor, JB weld the appropriate hole closed on the manifold, and you should be good to go