The Sanden Rotary A/C compressors for early Alfa Spider SD-507, 86 GTV6, Milano and Late Series 3/4 Spiders Spider SD-508 Shorty and 164 SD-709 take same shaft seal whereas the 81-87 Fiat X1/9, 79-81 Brava and Lancia SD-508 uses a different one.
Not sure but I expect Fiat Spider uses SD-507 or SD-508 Shorty.
Here is picture of removal/installation tools and both style seals:
Notice used seal on right as I am out of new stock right now for Alfa compressors, wonder why since I no longer own any Fiats or Lancias.
My info on 164 forum:
http://www.digest.net/alfa/FAQ/164/f...D2/4509.html#3
__________________
Ciao, Alfisto Steve
Virginia Beach, VA
AROC 164 Tech Advisor
sdpatchin@aroc-usa.org
http://www.aroc-usa.org/tech/index.asp
http://www.aroc-usa.org/
Daily drivers: USA models 91 Bianco 164B 5-speed ALFA 4ME, 91 Argento aka "Quik Silver" 164B ALFA 4US w/AT, 93 Rosso 164L 5-speed - semi-daily driver with issues.
164L
Rescue projects: 91 Argento aka Non-QS, and organ donor 91 Nero 164L
"A day without an Alfa whine is like a day without sunshine"