Just going by memory (warning - that's becoming unreliable...) - disconnect battery, remove center console (there are a few harness connectors - IIRC they are color coded but it is a good idea to mark them for later re-assembly), remove instruments, remove defrost vents and push defroster hoses off the fittings, remove/loosen two wing nuts up under the dash (just to the left & right of the heater box IIRC) and remove one bolt on each side - extreme outer/underside of dash. You might need to remove the steering column plastic cover - four screws from the underside. Then maneuver the dash away from the windshield (those two wing nuts underneath slide out from slotted tabs) and out of the car.
Remove the heater unit & check the blower motor. It sits down at the bottom of the heater. Any water or coolant that gets in can drown the motor. Clean & lube the motor and drill a couple of small drain holes in the bottom of the housing. That way any fluid that gets in can get out (unfortunately on the carpets...)Is it worth doing any other work whilst the dash is out?
To add to the above, disconnect the speedo and
tach. To do that, you just unscrew the screws holding the pod extensions on and you'll see everything else you will need to un-do.
CAUTION: I thought I had to disconnect the cowl drains (because I did not know what they were) and broke them....in the end, I replaced them with hoses found at a local auto store for $15 each, so it was no big deal. And replace the blower now if it doesn't work. I did mine at that time, was still a PITA to replace by dropping it.
Make sure your three gages are in place and wired back up before putting the dash back on, it's very difficult to get to the thumb screws in the back without pulling the dash.
Mark all the wires with tape, and make sure you have the wiring diagram printed out. This way you can figure out what each are for. Remove the cover on the steering wheel.
The two attached pictures tell a big story. If you look at my right hand cowl drain, you can see I replaced it with a rubber one. I posted pictures of that too. I will find that and make another post.
See the two tabs towards the middle of the dash? That's where the thumb screws are for the dash. As I recall, once those are loose, you pull the dash back towards you, not up to get it out. I tried pulling it up and it wouldn't come out.....whatever it is, it will come easy once it is free.
Oh, and you don't have to remove the nut holding the speedo reset chrome thingy....it comes out with the dash. Just remove the cable from the speedo pod when you remove the speedo.
It's easy to do. Good luck mate!
Yes....leave the cowl drains in place if there is nothing wrong with them. However, if they are original, I would replace them.
Thanks for this thread as I'm about to take the dash out of my white spyder prior to cutting out the firewall.:thumbup: