B18b1 oil in cooling system
 

So, I am having ALOT of trouble diagnosing why oil is being pushed into coolant

I have a b18b1 swapped 91 civic hatch. Has a pr4 head. Obd0 distributor (if any of that even matters)

It runs great with no issue
The oil is clean but goes down about half a quarter after driving for 2 hours. I noticed oil in the coolant so im assuming the oil pressure is pushing into the cooling system without allowing coolant into the oil.
I have replaced the head gasket twice. Had the head checked and it was good.

I also have coolant and oil leaking somewhere close to the oil filter. Its possible the coolant is coming from the water transfer pipe, bit the oil i cant figure out because the oil filter and sensor next to it show no signs of leaking or residue.

When I did the head gasket the last time, I use new head bolts, and a felpro gasket kit. I did coat the head gasket in copper gasket spray (I've heard a 50/50 mix of good and bad opinions on it). The dowel pin closest to the cam gear side was bent up a little, I used a large center punch to straighten it out best I could, when I reinstalled the head, the dowl pin didnt go in easy, used i rubber mallet to gently persuade it into place ( yea i know that sounds sketchy). I torqued everything to spec.

I can't seem to pinpoint why it's still pushing oil into the coolant. I can't imagine the head or block is cracked with how well it runs.

Any ideas?

Re: B18b1 oil in cooling system
 

Nevermind on needing help. I found out why the oil is mixing into the coolant, and why it's leaking at the back of the block. It's all caused by a crack directly above the oil filter in the area where the head bolt would come down. I'm assuming I didn't get all the water out of the bolt hole before installing and torturing down the bolts. Basically, it's my own screw up.