Removing Air conditioning

[mally002]

I am going to be putting on all the new hoses and have a stupid question.

I have removed all the old after market air from the engine bay and the hoses were cut back to the firewall. Regarding the unit in the passenger side footwell, would you remove it? I don't ever plan on installing air but wasn't sure that piece should come out, is it a pain to take out or pretty straight forward. I'm assuming I just need to plug the holes in the firewall.

Thanks for any input.

Randy

[sblake01]

From what I understand, those units require that a cut out be made in the blower housing. When you remove the unit, you'd either have to cover the hole in the housing or replace the housing with one that hasn't been cut out.

[Zs-ondabrain]

I was kinda wondering the same thing. I'm removing Everything A/C related in the 260Z and the enginge bay is empty but the rest of it remains in the dash. I plan to remove all of it but was concerned about continuing the air flow properly, though the main dash unit was missing. Just wondering if I had to build any kind of Duct unit or walls to keep the air flow correct.

I plan on installing a Double Din Pioneer Unti and having the A/C out of the way, will make it easier. I'm also getting rid of the Vaccum ran heater/AC equipment and making a few things Manual by cable. This 260Z will not have anyting that is Untouched.

I guess I need to dig deeper and research it all before ripping it apart. So I'll be paying attension to this thread.

Dave

[Zulaytr]

Generally, removing the evaporator from the inside is a relatively easy task. Most of the A/C units just bolt to the bottom of the heater housing and most likely did not require any cutting. You might have to take the glove box out for easier access. Regarding the holes in the firewall, if you are lucky and they drilled two separate holes you can just get a couple of rubber floor plugs like the pic below to plug it up. Then you will not need to weld up the holes unless you really want to. Good luck with your project.

[sblake01]

Most of the A/C units just bolt to the bottom of the heater housing and most likely did not require any cutting.

There would have to be an opening there from which to draw the cooled air from the evaporator housing through the existing blower fan.

[Walter Moore]

If there was I never saw one...

I just took the stupid thing out and tossed it, but I cannot remember now how it was connected. (It has been almost 7 years ago after all...)

I will run out to the garage and check eventually.

[Walter Moore]

Okay, here is the scoop.

In the attached picture the "outlet" of the evaporator is the small square opening on the left. The top lever of the heater control panel is marked with three positions:

OFF/VENT/HEAT

In the OFF position, the fan pulls air from INSIDE the car, near the passenger floorboard. (Passenger on a LHD car...) The evaporator housing's outlet mates up to the inlet of the inside air intake, thus you have to run the air conditioner with the top lever in the OFF position, or it does not work.

Thus the aftermarket air conditioner didn't require cutting any holes in the fan housing during installation, and there are no holes to plug when you remove it!

I knew it was something like that but my advancing "sometimers" got in the way.

[sblake01]

I guess there were different aftermarket units. This one appears to require an opening were it mates with the blower housing.

[mally002]

Hey guys,

Just a quick update, I did get the evaporator unit out, it was very easy to remove, but still couldn't get to the heater hoses very well. I removed the blower and that made everything very easy. I replaced all the old hoses and while everything was out cleaned the blower moter......you wouldn't believe how much dirt and crud was in there.

Plugged the two air holes and the drain hole and everything looks good.

Be sure your carpet is out if you replace your hoses as I had coolant everywhere once I took off the small connecting hose behind the heater control panel.......:stupid:

Thanks for the input earlier.