Quote:
Originally Posted by Barrpete
Look on the decklid just above the compressor. If there is a black 'stripe' of oil then the shaft seal is shot and it will leak refrigerant. On the other hand since it hasn't been run in 10 years, even if the stripe isn't there doesn't mean the compressor is OK either. The stripe could have been cleaned off easily enough.
You also have to consider that the system is a quarter century old. So even if it is still functional it's nearing the end of its useful life and there are more modern and efficient components availabe and lots of upgrades that will make the AC a lot better than it when it was new. It just depends on how much you want to spend. If you decide to upgrade, plan on at least $1500 if you do most of the work yourself. You can have cheap or you can have good but you can't have both. Good luck! And congrats on your 'new' 911.
|
My '88 does have a black stripe above the compressor but upon looking more closely with the lid almost closed it appears to be "debris" from the frictional clutch material. So it seems you might have at least three black stripes on the rear lid above the compressor. The one I have, possible drive v-belt material, and lastly, a shaft seal oil "sling".
If you suspect the latter then I would wipe the backside of the v-belt pulley, nearest the compressor, clean and then check for oil contamination there after a few days of A/C use.