wexcellent
New member
I have a 1996 NS40C Nissan Motor and I need to fill it up with gear oil. Everything I have seen online says that the drain/fill plug for the lower unit is 8mm. That is indeed the size of the upper (vent) screw. However the lower one is definitely smaller, I'm guess 6 mm. I can't find an adapter for my oil pump that size and I can't manage to get oil in there just trying to hold a tube tight to the opening.
Does anyone have any experience with this?
Should I just fill it from the top, let it sit, fill it again, let it sit, etc to let the air out?
I'd appreciate any advice.
Does anyone have any experience with this?
Should I just fill it from the top, let it sit, fill it again, let it sit, etc to let the air out?
I'd appreciate any advice.