Scarebird
Cadet
- Joined
- Aug 31, 2007
- Messages
- 12
Earlier I was test running a 3.0 88 Mercurser after fixing a list of issues. After 10 minutes of running I was greeted by a gush of chocolate milk out the valve cover. Wonderful 
. I drained the oil/water mix, and plugged the outlet hose, and fitted an airchuck to the inlet hose, ran it up to 15-20 psi (water pump hose swelled up quite a bit). No internal hissing I could hear thru the oil fill
I cannot see how that much water got in the crankcase if the block is good. I know these manifolds have a tendency to leak- but that much water?
. I drained the oil/water mix, and plugged the outlet hose, and fitted an airchuck to the inlet hose, ran it up to 15-20 psi (water pump hose swelled up quite a bit). No internal hissing I could hear thru the oil fill I cannot see how that much water got in the crankcase if the block is good. I know these manifolds have a tendency to leak- but that much water?
