Date: Tue, 06 May 2003 17:38:41 GMT From: Paul Halliday <pjghnopsamyonder.co.uk> Subject: Re: Okay, why?
in article b98r6e$g8qkh$1nopsam52899.news.dfncis.de, Grunff at grunffnopsam.com wrote on 06/05/2003 18:23: > Paul Halliday wrote: >> Okay, so the classic 900 heat vent control is powered by vac and has a >> canister to hold vac when the car is in turbo. Why? Why not use a mechanical >> setup, or an electric powered motor? > > Pneumatics are more reliable, more elegant and cheaper than > electric motors. > > Also, it makes a kewwwl noise when you switch it. Apart from the valve in the canister eventually going south, it's a very good system. The noise when switching is a source of constant amusement to one of my colleagues who passengers with me sometimes. I'd be very interested to know which other cars use this type of system. >> How far back into Saab's history does this innovation (if that is the word) >> go? Is this setup still used on new/er Saabs? Which other cars use this >> setup? > > Don't know about 96s, but 99s were cable operated, and sucked > bigtime. It's not used on 9000s. Strictly, the pneumatic system sucks as well :) Maybe MH or Hinz can help me with the other models. >> Inquisitive minds need to know. > > Too much spare time Paul? ;-) Far too much. I've been bed bound for the last week, lying awake thinking about it :) No, really, Saabs are so full of oddities which make so much good sense, I'm intrigued. Paul 1989 900 Turbo S http://saab.go.dyndns.org/
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