Now I know what everyones thinking, bad head gasket, But I dont think so.
I just recently purchased an s13 sr longblock from Jdm of Miami who compression tested the motor and everything and Im pretty sure that they would have caught the bad gasket. I've checked the oil and coolant lines from the turbo and there correct and if it matters I bypassed my heater core with a u shaped tube. Tonight we were setting electrical timing and we started and shut the car off a lot, plus my ignition is screwey so sometimes the fuel pump turns on and the starter doesn't go. My question is, if there was an excess amount of fuel in the cylinder, would it be possible
For it to somehow pass through the rings and mix with the oil? And if not, where else should I start looking? I've been researching for about 45 minutes and can only find limited information

 

I haven't got a chance to smell the oil yet, and when I do I'll post whether it's water or fuel

 

Try changing the Oil. Then start it for like 10-15 seconds. Then do that again. Did you pressure wash the motor or did it get rained on?. That's all I can think of

 

it is a blown head gasket.
period
that's really the only way that can happen. with the exception of things like getting the lines on the turbo backwards which is difficult considering how different they (should) be.
you don't have to drop compression to have a blown gasket. just because the oil and water is mixing doesn't mean the compression ring is blown.

As for your fuel mixing with the coolant/oil, the only way that happens is A) terrible piston rings, and running rich for a considerably long time (like several months) and/or B) blown head gasket where the coolant is leaking into the cylinder, causing a terrible combustion, running rich, and compressing the unburnt fuel out and into the coolant/oil.


Don't believe me, do like someone else suggested and flush it out and replace the oil, run it for a bit, 10 bucks says it gets milky within the day.

Just FYI, water will rust bearings. even water mixed with oil. not to mention how much it doesn't actually lubricate anything.
and that oil that it is in your coolant passageways will clog things up, and cause all kinds of cooling problems as it will coat the sides of the passageways preventing the heat to transfer from the metal to the coolant properly.
So my advice it to tear the whole thing down and get it actually cleaned out. Everything from the head, to the hoses, to the radiator.

good luck.

 

Also you could test the coolant for hydrocarbons...

 

I think importers do compression test's on the motor when its cold.

Leak-down test time!

I think you can rent it from an auto parts store. It goes on your rad cap, then you pressurize the coolant system( do it on a warmed up motor).
My daughters mother had milky oil in her 96 maxima and I was pissed. Did a little research and found out the FWD vg30 has a internal water pump and when the seals go bad the oil and water mixes. This is not the case on an sr.

 

I really don't think it's the head gasket, there's no milky shit in the coolant or under the caps, is there any crossed lines or other crazy possibilities, I ran the combustion gases test and the liquid stayed blue, given it was my first attempt I'm gonna try again tommarrow

 

thats a cooling system pressure tester, a leakdown test is when you compress the combustion chamber through the spark plug hole, to find leaks like headgasket, rings, valves, or a crack

 

Figured it out, the motor came over with water in it. Flushed it out 3 times and it was good