09-08-12, 09:20 PM
I'm reading it that you're replacing the metal pipe that goes into the water pump through the front of the engine.
On a Gen 2 I think it's similar to the Gen 1 and other R1 motors. There's an O-ring which seals the pipe to the water pump and another O-ring where the pipe passes through the crankcase. Both need to be replaced, obviously.
Make sure you clean everything thoroughly before disturbing the pipe and be meticulous with keeping grit out of the mix during the rebuild.
On a Gen 2 I think it's similar to the Gen 1 and other R1 motors. There's an O-ring which seals the pipe to the water pump and another O-ring where the pipe passes through the crankcase. Both need to be replaced, obviously.
Make sure you clean everything thoroughly before disturbing the pipe and be meticulous with keeping grit out of the mix during the rebuild.