Overheating after headgasket change

Well as title I did the headgasket on my 200tdi and while I was at it I decided too go back too a viscous fan because I find electric fans too be unreliable as I keep breaking them offroad. After it was all back together I took the car for a drive, engine runs fine but temp gauge read into the red I hit dashboard (history of faulty readings) and it returned to normal, I then drove back home only too hear my coolant bubbling when I parked up I checked the engine and the top and bottom hose were pressurised and too hot too touch but I also noticed the viscous pulley is loose, does this mean my waterpumps shot? Gonna try other things during week like flushing and cleaning radiator and refitting cowling I assumed with it being as cool as it is I shouldn't have a problem but its a slow increase in temp not a sudden spike up

You have a warped or cracked head or did a bad job of doing the gasket

check for air blocks in system and change the water pump b4 owt else

pressbrake said:

You have a warped or cracked head or did a bad job of doing the gasket

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I second that. No point changing the gasket if the head is warped.

Shifty1962 said:

I second that. No point changing the gasket if the head is warped.

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It was skimmed wasn't taking any chances

marc7 said:

check for air blocks in system and change the water pump b4 owt else

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That's my first point of call mate, And when I say I can get hold of my viscous fan and wobble it quite a bit and its the actual pulley that moves am I right I. Assuming water pump knackered, also think there's coolant behind the pulley leaking

i am no real expert but a friend had a similar problem wiht his Kit car. when we stripped the head off we found that one of the coolant holes in the head was blocked. my be worth checking out.

If its pressurizing thats a bad sign and 200tdi s are not prone to air locks