Steve, why would you have to recharge the air conditioning system, the blower motor has nothing to do with the air conditioning lines and removing and replacing it does not interfere with any air conditioning parts?
Removing and replacing the blower motor from the 164 is a under 1 hour job, wiggle false firewall loose, disconnect flap control, disconnect power supply, bend tabs on either side back and pullout, allow 1 1/2 hours if it is your first time and you want to take it slow/not damage anything
I have plenty of motors in stock with replacement warranty if anyone needs one
That's what I would have thought, so all air conditiong lines would have the same routing, well as far as V6 goes anyway, USA and Australia did not receive the 4 cylinder, air conditiong lines do not get in the way of fan removal
A few pics from mine. The motor I got from Summit. You have to change the fan over - see Mr. Steves tricks. Getting the old unit/housing out is tricky as there are 2 locking tabs to try to hold apart while pulling the beast out. I found using a stiff plastic piece to wedge between the tab and the spring helped. Research the threads for tip as there are some screws that I didn't know about and if I hadn't researched, I'd a broke something. I couldn't find my writing on it but it's pretty easy and having done it once I'd bet I could do the next one in 2 hours tops. Alot of the folks have said the removal of the wiper arm/motor was hard but I didn't find it necessary to remove, just the center cross brace. The big electrical connector at the firewall is fiddly to get back together and have it work. I didn't remove the false firewall either, just loosened it and moved it around to facilitate the removal of the heater box. In hindsight I should have spent the few dollars extra and changed the heater core since I was there but I didn't. Knock wood, no problems thus far.....ciao jc
I change blower motors without discharging A/C system. However that being said it helps to unbolt evaporator box and unclamp PDI valve from inner chassis rail in front of engine.
I also remove false firewall and windshield wiper motor. It even helps to remove intake plenum off top of engine.
As you can see from Chris' picture above not have the A/C evaporator box in the way makes the job a lot easier.
I like room to work but some folks jiust like to force things apart.
Here are some links of my process. First one with wiper motor out of the way, second one without removing wiper motor and third link is the whole story including changing the fan on motor and repairing air temp doors and cabin air filter.