Thread: Puma coolant pump vacant inlet/outlet - new location for Glind shower or similar?

There is a blanked off port of the puma tdci coolant pump.
There's 5 (count 'em, FIVE) connection points for hoses on this thing. Only 4 ports are used for the coolant circuits, and the fifth is blanked off with a rubber cap and spring clamp.
On top of that, the whole coolant system is bonkers- there'd have to be 50 individual hose joins on it.

Blanked port is item 3 in this pic:


Interested to know, is this blanked off port on the suction side or the pressure side?
Notwithstanding the variabilities of the coolant temps the pump sees... this might be a point for accessory cooling, another heat exchanger (think Glind shower, space heater for a camper etc)...

Has anyone had one apart to know whats going on here?

That makes sense. No cold starts in negative 20C weather... for the driver or the vehicle.

I did some more searching. Looks like it feeds the suction (central) side of the pump impeller- it's part of the central plastic manifold arrangement that bolts onto the back of the pump. I
guess it could work as a lower pressure return point for for the heat exchanger, if anyone is going down the glind shower system path.

I still think it looks dicky having a blanking cap on a water pump though