Coolant Drain Plug on RB30 Engine

[B3nG4le]

Hey guys,

I have a Nissan Patrol Y60 from 1990 with a RB30 Engine.

I want to change the coolant. But where or which is the coolant drain plug on the engine?

It should be on the rear left side. There are two. Here are two pictures. Can anyone help me?

Cheers

[mudnut]

The manual states it is below the exhaust manifold, somewhere. I too need to know which one it is. The manual also states that it is common to have a plug of rust form behind the plug, which needs to be removed.

[B3nG4le]

The pictures are below the exhaust manifold. So I think it is one of these. But I'm not sure which one it is.

[Alitis007]

One is oil feed and the other is water, you use them for a turbo set up. From memory the big one at the top is water but if you remove the thermostat from the bottom hose fitting on the block and reverse flush the block you shouldnt have to touch it because the thermostat is lower than that bolt.