[Stinkfist04]

well.. i cracked the coolant stem on the back of the explorer intake manifold, jb weld didn't hold up so i bought a 99' GT intake manifold... completely drain coolant system. put it on..new gaskets.. torqued down to 18ft lbs. in the right sequence..fired it up.. wouldn't you know, loads of steam coming out of the exhuast pipes...missfires...blah.. looks like i'm tearing it all down again... i didn't use rtv any, didn't think i needed to with brand new rubber gaskets.. would it hurt to use rtv?

 

[timb]

Are you sure you don't just have coolant in the plug holes causing a misfire? Also on the 02 explorer manifold the rear nipple is dead unless you drilled it out.

 

[Stinkfist04]

it's not coolant in the sparkplug bores.. i checked the bores.. pulled the plugs on the cylinders that are most vulnerable to coolant leakage through the manifold.. they were dry, looked fine to me.. oh and that explorer intake.. i did drill out the nipple, and cracked it when i was threading it out for a stem.

 

[sc0tty8]

I was under the impression that when using a pi mani on a npi motor you have to use rtv on the ports.

 

[Stinkfist04]

something like that....but thats only on a pi intake to npi head...i have the pi motor so it's not required...anywho.. i let the car idle for a few minutes and got warmed up and everything cleared up.. no more steam, no misses.. i'll see tomorrow morning when everything's cooled back down what it's doing.. it doesn't appear to be loosing coolant level.

End Thread.

 

[sc0tty8]

Maybe it was just burning off what dripped into the ports?