Clutch slipping after trip at glasshouse, new HD NPC clutch.
Welcome to the Nissan Patrol forum. To post a question and to see less adds on the forum then you will have to register
first. We are an easy going friendly forum so join in the conversations and feel free to ask any questions.
Become a forum sponsor for only $20 and see no adds with faster page loading times and many extras benefits.
IF, everything is bolts up right and tight. You should not see anything leak out. The only entrance point on the bell housing for mud and water to get in is via the clutch fork boot.
The earlier Patrols had a drain plug in the bell housing, mine, a 2001, doesn't. So yours shouldn't too. Great idea in my opinion to have a drain plug. My suggestion to you is to continue washing out the clutch area until you only see clear water coming out. Then seal up the housing area properly.
I know mud is fun but its costly. My last bog hole adventure cost around 2K. Killed the clutch, a/c pump, alternator, destroyed brand new brakepads and rotors. I just drive around big bogholes now.