Looks like coolant mixed into the oil.  Maybe a blown head gasket

More description of what is going on would help.

Hi, thank you at all for the interest. The head gasket is new changed two months ago. I think the head is broken

Either way, the head has to come off.  You will see the problem then for sure.

I would do the easy test and open the oil drain plug and see if you get a milkshake looking oil

Coolant can get into the cylinder through blown/compromised intake manifold gaskets.

 

Leak down test and pressure test the cooling system.

I can't see any cracks so I'm thinking the problem was the head gasket. Others may need to comment also to see if there is consensus.

Someone tapped that hole too deep.  Water should not come out there.

Many thenks to all Subaru entusiast like me. Here a  picture about gasket that present a difference between a head by a little hole only

checking if the breakage reaches to the valve seats

The head gasket fire ring is clearly blown. You need to check head flatness and proper bolt torque. 

 

The gasket and head coolant passage mismatch is normal. That is not a sign of failure or a cause. The previous picture shows clear carbon tracking from fire ring to coolant port. 

 

GD

Edited June 2, 20178 yr by GeneralDisorder

italian vintage tool---

the breakage is not too deep in to the valve seats

of course I take advantage to drinding valves and their seats....always with italian vintage tools.

There is some seriese issues if that head gasket was done 2 months ago it looks like its never been done before and if in fact it was they did a horable job every thing should be clean and carbon free when put back together there shouldent be any rust anywere unless water sat in the cylinder for a long time even after a year of sitting outside 100ft from the ocean with no plugs and water in the cyliders i havent seen anything that ugly that looks like it sat exsposed to the air and water for years like a junk yard head nothing some time with a wire wheel and a good cleaning wont fix and make sure to use atleast some coolant in the system it helps to keep the corosion in the system down so if someone did do the gaskets they dident prep the head and that would be why it failed but i dont know why anyone would go to the trouble of changing a head gasket and not cleaning the surfaces  on the head and block

 

 

On second thought i did have 1 head that looked like that it had water in the cylinder for about 10 years it cleaned up i have it somewere the rings and pistons cleaned up to but the cylinder boar was pitted and has a valley kinda thing going from the rust lol im sure it could be honed out but why ive got 3 more blocks laying around

valves

cleaning

cleaned valves

Crack between the valves....I see this post http://www.ultimatesubaru.org/forum/topic/135322-ea82-head-crack-between-valves/ 

 

Looks like the common harmless crack.

thank you Dave, so do you think this crack is not a problem? which is best head gasket for this head? Fibermax?

The crack is so common that there was a tsb from Subaru about it years ago.

 

Headgaskets are oem or Fel Pro only. Intake gaskets are oem only.

Also, the 2 o rings on the oil channels, oem.

1. the heads need resurfaced for flatness and finish. can do it yourself with vintage Italian marble like this:

http://www.ultimatesubaru.org/forum/topic/122588-diy-head-resurfacing-or-post-apocalyptic-machine-shop-techniques/

 

2. Subaru or Fel Pro head gaskets only

 

3. Subaru intake manifold gaskets - others are thin flimsy cardboard

 

4. The cracks are normal, every EA/ER head I've ever seen except maybe one or so has them. If they're too deep they can breech coolant/exhaust passages. This happens more often on turbo engines than non-turbo. Heads can be pressure tested, not sure how to test them at home but you can look into the exhaust ports for signs of cracking there.

Edited June 8, 20178 yr by grossgary