Excuse my french....but what the **** is going on??

I got my new engine started up and I have a coolant leak that looks like its leaking from the top of the firewall, nowhere near the block, and when I drained my oil, it was completely mixed with coolant to an watery mix..

What are all the possibilities that could cause collant to get into my oil.

TURBO?
ENGINE?
Hose routed wrong???

Pleases tell me its something easy, like a hose that could be routed wrong.

We did notice that I had accidently plugged off the coolant nipple coming off the back of the block that should go into the throttle body.... I fixed that and routed it through the throttle body... Would the pressure from having that blocked off hurt anything???

And the leaking is very strange, it looks like its dripping from the bottom of the firewall nowhere near the engine ....its like there is something wrong with the heater core??? could that be causing it???

I dont want to hear that the engine is shot....it doesn't smoke one bit. It starts up fine. Oil pressure is good.

Im really suspecting the turbo, because I bought voskos turbo and he though it was blown at first but then told me it was ok.....Is there anyway that the turbo seals being blown could cause coolant to flow into the oil?

Thanks for any help....this is about 10k worth of blood and sweat and Im going to kick some major *** if that turbo is ****, or if the brand new engine I bought and took 100 hours to put in is bad.....\


thanks..


Someone please help....

 

btw: I don't see any oil in the coolant , just coolant in the oil.....\

 

I dunno.. I'd check all the lines again

 

Where did you get the engine? who did the rebuild?

I don't think coolant runs through the turbo does it? I thought it was just oil cooled... I could be wrong on that though .. I am not to that part of my rebuild process quite yet. Sounds to me like the housing gaskets are leaking .. thus the mixing of coolant and oil.

 

Coolant does run through the turbo, but I doubt that would be it. Would have to be a MAJOR crack to cause that to happen. Even still, oil would be forced into the coolant by the higher pressure.

It sound like 1 of two things:
1. Someone connected a throttle body coolant hose to the oil breather
2. Engine O ring is bad.

#1 is easy. #2 means pulling the engine apart.

Pressure test the cooling system to look for the leak.

 

any more input?

 

is there anything at all we could of hooked up wrong to cause this????

I would like some more input please...thanks

 

I have only seen this type of thing once...engine had a cracked iron, allowing oil adn collant to mix.

I really dont see anything you could hook up wrong to mix the two...really, I can think of nothing external, unless, in fact someone did mix up a coolant hose and run it into the oil breathers.

 

i have never seen anything like that..... make SURE you hooked up all coolant and oil lines correctly. it shouldn't be hard there are only a couple. who did the rebuild???

 

Coolant for the turbo goes through a passage in the intake manifold---if you got the O-ring seal screwed up that might explain coolant dripping off the bottom of the firewall,but I don,t see how it would make to the oil pan.

 

can someone be more specific about the coolant that runs through the intake...upper intake or lower??

I removed all emmesions....so most of that is capped off.

I do remember two o-rings that seals on the bottom of the lower intake manifold?? Could those be causing the problem...I wasn't sure what they were for.

 

Did you ever find the culprit? I have the same problem non turbo..

 

Had a similar problem with my first motor....Oil and coolant mixing. I took off the oil pan to try to find the leak and to my surprise found a 2 inch by 1 inch piece of iron in the oil pan (very bad thing). A piece of the front plate had cracked and fell into the pan...thus letting any coolany in the system drain right into the pan.

 

internal o-ring got pinched or rolled or a coolant line got mixed up with a PCV breather line, double check your hoses and if correct do a pressure check on the cooling system if it is leaking internally, sorry, but the engine needs to come back apart.

 

did you run a coolant hose to the UIM, or the TB? the nipple on the UIM is vacuum for the brakes, though it does look like a great spot to run that pesky coolant line, you probably flooded all your exhaust with coolant too.. Its a lot a fun cleanin that up.

 

O'ring b/t one of the rotor housings and one of the side housings slipped out of its groove during assy. Remove and repalce same plus everything else that got ripped up during the disassy of the engine.

 

dont forget the freeeze out plugs!!