Fairly easy to change IF the screws aren't stuck---
The 10mm nut holds the outside lines on, remove and push back (you need
to remove the bolt holding the high pressure hose to the outside of the
inner firewall, about the center of the front wheel to allow it to push
back). Hose set will detach, exposing two allen head screws (4 mm, I
think, don't really remember). CAREFULLY break these loose, if you
strip the head of one, it must be gound off and there is VERY little
room. Make sure the wrench is seated all the way before reefing down
on it!. Very difficult or impossible to use a 1/4 drive ratchet set,
too.
Make sure you don't crimp the new o-rings while installing the new
expansion valve.
Peter
