So, for the stuck closed hatch, I believe the connecting rod between the hatch button release and the latch is disconnected. I'll pull the inner trim to confirm/reconnect. Too much football on today with interesting outcomes.
I'll look for a reference DIY or look in TIS for a good head gasket replacement reference. I've done other motors, but not a M44 yet. Search here had no hits. If anyone knows of one, please forward the link. I'll look through TIS tomorrow.
