davehart
Member +
10mm nuts hold most of the boxes to the bulkhead. You can remove the main heaterbox if the other two are loose but to be honest it's easier to wrestle it out of there once they are removed completely.
Once you have the heater box out the matrix can be slid out the top. A bracket holds it in place so remove that and you are almost at the fun stage - putting it all back together!
Looking at the state of cabin at the moment and all the parts on the kitchen table I have a feeling it's not going to be that much fun...