Reply With QuoteDon't know but I would bet our old NAs have fans that are week from age, dust clogged evaporators, and leaky plumbing under the dash.Originally Posted by POS Racing
A/C - NA vs. NB
I'm driving the kids miata this week while she is out of town and I noted the A/C in her car (2002 NB) works better than the A/C in my car (1994 NA).
They are both 134 systems.
Is there a major difference the NA setup and the NB setup??
Don't know but I would bet our old NAs have fans that are week from age, dust clogged evaporators, and leaky plumbing under the dash.
The NB is a R134 system....The NA is a R12 system converted to R134.
What?? I thought '94 and up were R134 straight out of factory in Nagasaki??
Your right Mick, my 94 chassis is R134 too. Nevermind.
Mine works great, but I think HudsonHawk might have done some work on the AC before I got it.
1990 White NA - SOLD
1994 Black NA - SOLD
2006 Red NC - GT with limited slip, HIDs, all OEM.
I know the NB's have a slightly different condensor than the NA's and I believe a different compressor as well but I'm not 100% sure on that. Does your NA have the air guid and belly pan in place and in good condition?
"Pain is inevitable, suffering is optional." Haruki Murakami
Yep!
Keep in mind the A/C on my '94 does work it just doesn't seem to cool as well as the A/C in the '02.
Guess I need to get someone to hook up some gauges on it and see if everything is in spec. But I fear A/C shops.....
I'm assuming you have already checked the freon so other than that i'm out of ideas. Well except for the fact the 94 is 18 years old now.
"Pain is inevitable, suffering is optional." Haruki Murakami
Well stuff goes past the sight gauge but don't have all the fancy schmancy pro gauges to check pressures.
And you are correct it is an old car!
I think Old Man Stolz has some fancy gauges.
So you are saying you see bubbles in the sight glass on the drier? If so the freon is low and you just need to add freon until you no longer see bubbles. My 96 doesn't have the sight glass so I have to go by what the gauges say.
"Pain is inevitable, suffering is optional." Haruki Murakami
I thought it was all based on pressures and the sight glass just gave you an indicator of how things are going??
But than again I really don't know anything about automotive A/C. I do know historically when the A/C quits working I sell the the car. Ain't got no time for a car without A/C!!
Yes but for the most part once the bubbles are gone you should be good to go. I'd also put a thermometer in the AC vent and an exta fan pointed at the radiator. I also leave the windows open while I'm adding freon so the system won't cycle. One more thing is that if you are having a difficult time getting the system to suck in more freon you can put the can in a pan of hot water, but never turn the can upside-down.
I got tired of getting rapped to have freon added to my old Honda so I took the test to get a license to buy R12 freon. I also bought and read a few books on how it all works so I now know just enought to be a cheap bastard that's dangerous.
"Pain is inevitable, suffering is optional." Haruki Murakami
Here ya go...
'94 Black & Black & Tan
'99 head swap, JR header, TDR intake & header blanket, MegaSquirt, RB hollow bar, Tein Flex, 15x8 6ULs, HD M2 Sport, FM cat, Borla cat-back, black '95M interior, MOMO Zebrano, IL Motorsport console...
Dyno Days
8/16/08 (bone stock): 103.1 hp/99.0 lb-ft - Dynojet
8/23/08 (Borla cat-back): 108.2 hp/104.1 lb-ft - Dynojet
8/13/11 (more stuff...): 126 hp/116 lb-ft - Mustang dyno
Roger Moore: the Danny White of James Bonds
FWIW, the AC in the NC is the cat's ass!
So it's a stinky brown starfish?FWIW, the AC in the NC is the cat's ass!
'94 Black & Black & Tan
'99 head swap, JR header, TDR intake & header blanket, MegaSquirt, RB hollow bar, Tein Flex, 15x8 6ULs, HD M2 Sport, FM cat, Borla cat-back, black '95M interior, MOMO Zebrano, IL Motorsport console...
Dyno Days
8/16/08 (bone stock): 103.1 hp/99.0 lb-ft - Dynojet
8/23/08 (Borla cat-back): 108.2 hp/104.1 lb-ft - Dynojet
8/13/11 (more stuff...): 126 hp/116 lb-ft - Mustang dyno
Roger Moore: the Danny White of James Bonds
FWIW, the AC in the NC is the cat's ass!Check back in 20 years, hell check back with your Ford in 10 years!
Executive Imports worked on my son's 98 Civic which had lackluster AC. After they replaced the condenser it was as cold as when it was brand new. Not cheap, but really cold.
1990 White NA - SOLD
1994 Black NA - SOLD
2006 Red NC - GT with limited slip, HIDs, all OEM.
Now where's that pic Meesh just posted.....
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