New Bulkhead Install
I am installing a brand new LHD D90 bulkhead (I acquired some years ago) on my NAS D110 as I go thru the rebuild. I had a few questions I was hoping people could help with (Search didn't seem to find what I was looking for):
1] Is there anything I should do before install to repair or fix common problems for leaking on the bulkhead? On my NAS D110, i recall that most people get leaking on the PS area and I have the typical rust and leaking there now. With the new bulkhead, is there some repair or added caulking/sealing to do to ensure no water ingress later?
2] I will need to decide if to use the fresh air vents since the new bulkhead has screens (and I prefer to use them) while my NAS D110 bulkhead has the blanks there. Should I cap off the vents to avoid leaking there or is the fresh air feature worth the potential hassle of that area leaking (or doesn't that area leak on D90s?)? I am installing a D90 dash as well so I will have the mechanisms there to work the vents - just wondering if they are worthwhile (I think they would be) vs a source of future problems and leaks. BTW - if anyone knows where to get the vent flaps/hinges/seals pls let me know - haven't found them yet on RN or other places I am looking.
3] Any other fitment issues or items I should address while the bulkhead is off?? I know the AC system doesn't directly port to the new D90 bulkhead/dash but my AC isn't working now so I can address that later. Heater and defrost should still work fine (using the engine-mounted heater/AC box) according to what I've been told.
Appreciate any guidance on above.
'93 NAS D110 #437