Pushing coolant. But how?

[Hiitman]

This is somewhat confusing to me. Only reason I know what this is is because it happened to a friend of mines Porsche. Anyway.

Last week I changed out my SBR G50 with a PTE 60 trim. I also went from a 91 ofh to a 90 and installed an oil cooler. Made some good 3rd gear pulls tuning the car and parked it. This was on Wednesday. Today I go to start my car and come to find out that the battery was low so because of my inpatience I flooded the motor. After going back and forth with pulling the plugs and cranking it with the injector clips off I finally got it started. Idled very strange. My wideband was at about 11.2:1 the whole time. Then my catch can starts smoking. I shut it off, look under the car and see a milky substance. Great.

Now this is where I get confused. How would I be pushing coolant without a blown hg? And if the hg is blown, when did I do it? I'm thinking that it either happened at the end of my tuning drive or somehow (just speculating) there was a detonation from all that pooled fuel and it somehow blew the hg. I've never torn apart an engine so that's just a guess.

Thanks in advance for any advice.

 

[Red97Eclipseboy]

Check the oil filter housing. You may have crossed the oil/coolant lines, or it's bad.

 

[Hiitman]

It's a 90 ofh. I'm pretty sure they're just air cooled. I blocked off the old coolant lines that ran to the 91 ofh I use to have. The coolant runs through the block and through the radiator. The weird part is the car was fine on Wednesday when I made 5-6 strong pulls while tuning. I had to of done something this afternoon when I flooded it. Here's a pic of the oil.

Might not be anything too crazy. After thinking about it, my oil has been lighter in the past few months. I thought it was the methanol cleaning everything, but the hg could of been going and that new PTE turbo was what pushed it over the edge. Oh well.

 

[Hiitman]

Compression test netted me 190-187-190-190.

 

[JayRolla]

Do a leakdown test and see what your results are. You could be pushing coolent because of the high bosot levels. My mechanic installed a new MLHG and was pushing coolent the first time he took it to the track. Running his T67 turbo at 28-30psi.

If it is the headgasket make sure you look into getting the head O-ringed, helps stop the coolent from pushign through.

 

[kahl23]

This was also discussed at length on the DSMLink forums, and the conclusion was that increasing the torque on the head studs was a quick fix, although maybe not the best fix.

What headstuds and torque are you running?

 

[Hiitman]

ARP's (not the L19s) and I'll have to ask Mike up at RRE when I call him tomorrow.

 

[JusMX141]

Ewww.....looks like a horrible biology project gone wrong.