AQ171 Head sensors

I need to make the aq171 head have the same sensors (and outlet to go to the heater matrix) as the b234 head. The holes are too small for the temp sensor and temp gauge sensor. The allen key headed bung is going nowhere also so I will have to use the 3 on the left.

https://www.flickr.com/photos/186009222@N04/50054592327/in/album-72157714892064058/

Hi
you should be happy that they are to small
cos when you snap the temp sender and the air valve
you can drill them out the right size