Well the heater box is back together thanks to all your encouragement and the rebuild kit.
Heater core was tested and the heater valve has new seals and leaked checked. All cables are lubed and the original fan and blower motor cleaned, lubed and bench tested at all speeds.
Cables and levers lubed.
I'm worried about water leaking past the seal into the car.
Should I add some 3m butyl strips somewhere after I install and tighten the two bolts?
Also I need to top up the coolant again and worried about air pockets. What's the best procedure for this?
TIA