Automotive Air Conditioning Information Forum (Archives)

doogdoog on Mon May 26, 2014 3:59 AM

Year: 2004
Make: Subaru
Model: TS Impreza
Engine Size: 4 cyl
Refrigerant Type: 134
Country of Origin: United States

Aloha,
My son is complaining about smelling smoke from the engine compartment and it is only when the AC is on. It is intermittent so I was wondering if the compressor clutch could cause this. It doesn't seem like the belt is causing this and I have also tightened the belt a little but the problem is still there. If the clutch slips, would it cause a smokey smell? I really can't see the whole name of the compressor since there are a lot of things in the way but all that I can see of the name is lsonic kansei. If the problem is the clutch, will it be possible to remove and replace the clutch without evacuating the system? I forgot to add that the AC cools and seems ok.

Mahalo,
doogdoog

Edited: Mon May 26, 2014 at 4:01 AM by doogdoog

Dougflas on Mon May 26, 2014 9:54 AM

yes, a slipping clutch can smoke. After the system has run a while with doors open, shut the vehicle off and see if the clutch is hot. You might want to use a gloved finger in order to eliminate a burned finger.

doogdoog on Mon May 26, 2014 9:38 PM

doogdoog on Tue May 27, 2014 12:02 AM

Aloha Doug,
Thanks for the reply and tip. Is the clutch plates metal to metal or metal to some kind of material like a brake disc pad. If the clutch is slipping, do you remove shims (washers to adjust) or is there something to change and can it be changed or adjusted without evacuating the system.

Dougflas on Tue May 27, 2014 5:52 AM

metal to metal, and yes, you remove washers and shims to correct the clearance. You will not have to remove the charge to accomplish this.

doogdoog on Tue May 27, 2014 9:58 PM

doogdoog on Tue May 27, 2014 9:59 PM