Who still has AC? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

dreaMervaj · 02-23-2011, 07:16 AM

Hey guys,

I unhooked my AC a while back when I toke my motor out (stupid move) and never had the chance to readd freon and oil to it. When I turn the AC on now, the plate on the front of the AC (is this the clutch?) doesn't spin at all. Does this mean that the compressor is bad and dead?

I've read multiple threads from searching on google that I could jump the compressor and if the plate on the front of the AC (clutch?) spin then it is still a good compressor?

I want a definite answer before I go out and find another AC compressor.

Let me know guys. Thanks!

jacobs13 · 02-23-2011, 08:16 AM

Did you check all the wiring? Make sure its getting power. Ruke out everything before you buy a new part. You can also check to see if a parts good or not, there is no reason to replace good parts.

carlfer · 02-23-2011, 08:31 AM

If you haven't added freon, then it won't engage. If it still doesn't engage after adding freon, then you might have a bad compressor. But, do what jacobs13 said before you buy a new one.

japslapsilvia · 02-23-2011, 09:50 AM

if the system is empty you will need to evacuate all the air first with a vacume pump, the you can "jump" the pressure switch to engage the clutch on the compressor to do your fill of oil/freon. you can free flow it. but i wouldnt reccomend that, as its usually hit or miss.

job4ac0wboy · 02-23-2011, 10:20 AM

Yeah, if there is no freon in the system the condensor wont have anything to...condense. lol. Alternatively the bearing could go out? Dont know if that affects your situation but ive changed just the bearing because it was squealing. mightve locked up? not sure. Sorry to hear it man.

vas570sx · 02-23-2011, 11:48 AM

Quote:

Originally Posted by japslapsilvia

if the system is empty you will need to evacuate all the air first with a vacuum pump, then you can "jump" the pressure switch with a wire or paper clip to engage the clutch on the compressor while the engine is running to determine if the pump is good or bad before you fill it with oil/freon. you can free flow it. but i wouldn't recommend that, as its usually hit or miss.

fixed

blahblahblahblah

h2v7 · 02-23-2011, 12:55 PM

took whole unit out and all egr

that big ac radiator thing was huge and now i got wayyy more airflow in there

dreaMervaj · 02-23-2011, 02:45 PM

So this probably isn't a DIY type of job? I don't have access to a vacuum pump nor do I know how to use it.

I really just want to know if there's a way I can test my compressor to know if it is still good or not. I don't want to add oil & freon to my compressor and find out it is dead. My AC was running fine before I went KA-T and leaked out all the freon so, blah.

I know where I can get a compressor for $50 but if I can test and verify MY compressor is good then I could save $50.

Let me know guys. Thanks for all the replies!

lonelywanderer · 02-25-2011, 08:16 AM

take the car to a shop that does a/c simple as that since you dont have the right tools for the job or know what needs to be done

DenkiMan! · 02-25-2011, 09:35 AM

Quote:

Originally Posted by lonelywanderer

take the car to a shop that does a/c simple as that since you dont have the right tools for the job or know what needs to be done

^^^^ yea this

2d-ink · 02-25-2011, 10:02 AM

I have AC still, stock KA24de, no engine mods.

stockbee · 02-25-2011, 12:55 PM

I'm about to start test fitting an LS2 in my engine bay. I'd like to run custom lines and keep the A/C, thinking about doing a write-up on what it actually takes to get that accomplished. So many people just do the LS swaps, RB swaps, etc. and don't retain the A/C and regret it later.

02-23-2011, 07:16 AM	#1
dreaMervaj Zilvia Addict Join Date: Aug 2005 Location: SC Posts: 866 Trader Rating: (18) Feedback Score: 18 reviews	Who still has AC? Hey guys, I unhooked my AC a while back when I toke my motor out (stupid move) and never had the chance to readd freon and oil to it. When I turn the AC on now, the plate on the front of the AC (is this the clutch?) doesn't spin at all. Does this mean that the compressor is bad and dead? I've read multiple threads from searching on google that I could jump the compressor and if the plate on the front of the AC (clutch?) spin then it is still a good compressor? I want a definite answer before I go out and find another AC compressor. Let me know guys. Thanks!

02-23-2011, 08:16 AM	#2
jacobs13 Zilvia FREAK! Join Date: May 2009 Location: Long Beach Age: 33 Posts: 1,061 Trader Rating: (27) Feedback Score: 27 reviews	Did you check all the wiring? Make sure its getting power. Ruke out everything before you buy a new part. You can also check to see if a parts good or not, there is no reason to replace good parts.

02-23-2011, 08:31 AM	#3
carlfer Join Date: Jul 2010 Location: MD Age: 45 Posts: 48 Trader Rating: (1) Feedback Score: 1 reviews	If you haven't added freon, then it won't engage. If it still doesn't engage after adding freon, then you might have a bad compressor. But, do what jacobs13 said before you buy a new one.

02-23-2011, 10:20 AM	#5
job4ac0wboy Leaky Injector Join Date: Feb 2011 Location: Oklahoma City Posts: 67 Trader Rating: (0) Feedback Score: 0 reviews	Yeah, if there is no freon in the system the condensor wont have anything to...condense. lol. Alternatively the bearing could go out? Dont know if that affects your situation but ive changed just the bearing because it was squealing. mightve locked up? not sure. Sorry to hear it man.

02-23-2011, 12:55 PM	#7
h2v7 Nissanaholic! Join Date: Apr 2010 Location: san francisco, ohio Posts: 2,194 Trader Rating: (3) Feedback Score: 3 reviews	took whole unit out and all egr that big ac radiator thing was huge and now i got wayyy more airflow in there

02-23-2011, 02:45 PM	#8
dreaMervaj Zilvia Addict Join Date: Aug 2005 Location: SC Posts: 866 Trader Rating: (18) Feedback Score: 18 reviews	So this probably isn't a DIY type of job? I don't have access to a vacuum pump nor do I know how to use it. I really just want to know if there's a way I can test my compressor to know if it is still good or not. I don't want to add oil & freon to my compressor and find out it is dead. My AC was running fine before I went KA-T and leaked out all the freon so, blah. I know where I can get a compressor for $50 but if I can test and verify MY compressor is good then I could save $50. Let me know guys. Thanks for all the replies!

02-25-2011, 08:16 AM	#9
lonelywanderer Join Date: Apr 2005 Location: hawaii Age: 38 Posts: 32 Trader Rating: (0) Feedback Score: 0 reviews	take the car to a shop that does a/c simple as that since you dont have the right tools for the job or know what needs to be done

02-25-2011, 10:02 AM	#11
2d-ink Join Date: Nov 2005 Location: West Ville Posts: 30 Trader Rating: (0) Feedback Score: 0 reviews	I have AC still, stock KA24de, no engine mods.

02-25-2011, 12:55 PM	#12
stockbee Zilvia Member Join Date: Sep 2008 Location: Bowling Green, Ky Age: 38 Posts: 266 Trader Rating: (2) Feedback Score: 2 reviews	I'm about to start test fitting an LS2 in my engine bay. I'd like to run custom lines and keep the A/C, thinking about doing a write-up on what it actually takes to get that accomplished. So many people just do the LS swaps, RB swaps, etc. and don't retain the A/C and regret it later.