i bought an engine last year from a member on here. it was a fresh build with newish looking parts from a proper engine builder. the engine has constantly leaked water into the oil from day one. i'm down under so there's no chance of any recourse from the build so i had to pull the engine & go searching myself.
originally i thought the machined surface on the alloy heads was too rough for cometic gasket to seal so i had them replaned to a smoother surface. that made zero difference so now the engines out on the stand being stripped.
on the strip down, when i pulled the oil pan i saw a water smear of oil/water coming from the front of the block on the pan. looking around the bottom of the cam chain saw more mixture, i though i was onto something. removed the front timing cover & we had a small amount of mixture but no sign of where it may have come from. there's no galleries in this section so i'm confused. anybody seen anything like this before?