Re: Calling all "What's that thingy?" experts ...

Okay, it's "name that thingy" time again. No comments please Hinz :)

Damn.

Today, I have had the speaker units out of the dash. Thanks everyone for not > telling me that *everything* is so much more accessible through these > apertures!

Hey Paul, ...er, nevermind. I'll behave.

There is a "thingy" (gold/bronze in colour) that looks like the working end > of the wastegate actuator facing out of the upper LHS of the void behind the > dash. There is a vac port with no line connected. The vac line (labelled > -3-) is pretty much the right length to connect to this device, so I > connected it up. No change whatsoever - better or worse.

Open/closes the flappers for the dash ventilation ducts, I would guess? My c900 manuals are on loan so I can't check for sure. Does it look like the actuator on the fresh-air flap under the hood vent, by any chance? Definately fits the description. Have you run through all of the vent positions in your control valve? That's all pneumatic, as you've probably noticed. I'd bet that's what you're looking at, and I bet the #3 hose would have had suction on it in one or more switch positions.

What is it?

"Air solenoid" I think might be the technical term.

Dave "How'd I do?" Hinz

Reply to
davehinz
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in article bdknm6$tmolb$ snipped-for-privacy@ID-134476.news.dfncis.de, snipped-for-privacy@spamcop.net at snipped-for-privacy@spamcop.net wrote on 28/06/2003 19:44:

Ha, yes! Clunk :)

I followed a -3- hose over to the RHS of the dash as well, so I was very confused about what it did. I seemed to simply run from one side to the other. There'll actually be two hoses labelled -3- going to each of the end vents. I do remember that one of the vac lines on the vent controller cluster went to a Y junction - that'll be the one that serves both of these vents.

I never use the LHS (passenger side for me), so I'd never notice the difference. Perhaps I will now that I know it works.

This actuator is somewhat bigger than the fresh air flap actuator under the bonnet. My current 900 does not have a fresh air flap, but my first one did. Can they be retro-fitted? I still have the button from my first one :) I like having re-circ, especially when following smelly diesels or driving past landfill sites in the height of summer.

Thanks Dave (and Grunff). I'm enlightened.

Paul

Reply to
Paul Halliday

Has the apprentice become the master?

Reply to
davehinz

in article bdmspl$ufou2$ snipped-for-privacy@ID-134476.news.dfncis.de, snipped-for-privacy@spamcop.net at snipped-for-privacy@spamcop.net wrote on 29/06/2003 15:23:

I didn't read it that way. I read the invisible smiley. We Brits are good at wit and inference :) First cars ... Learning curves and all that

I'd love a 96. I think they look really nice. The 99s are great, but I much prefer the earlier models. A Sonett? Well yep, I'd like one of those too, but the Triumph Stag is higher on the list :)

Gottit! So, it's all about the knock sensor really. That's the function that is imperative to keep working right and why people spend silly money fitting aftermarket turbo sensing systems to their old turbo-charged cars.

The notion of default wastegate cycle (the P pot) is beginning to sink in - once I understand it, I'll know what I'm actually doing with any APC mods. Previously, I just kind of turned F up a lot and P up a little then backed down to suit my own preference. My previous 900 turbo broke before I had any real fun and I'd like to intimately know the theory first with this one, rather than blindly do what others have done. I still have the APC box from my first 900 turbo and it was setup just nicely. I got a document from somewhere on the internet (I can't find it again), detailing APC information. I'll post it as a new thread for information.

Getting the heat controller arm back onto the far end (not the dash end) through the DIN slot was one f*cker of a job. I was cursing Saab for a while about that one until I pulled the speaker clusters out :)

Reply to
Paul Halliday

Asuming you are in the USA, do you have it registered in the 93 register = at

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?

------------------------------------------- MH '72 97 '77 96 '78 95 '79 96

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Reply to
MH

Yup. The knock sensor is kinda dumb, too. Rattle anywhere is seen as knock, so if you have a loose bracket or something, your car's performance can take a dive.

ALMOST always, if getting to whatever you're trying to reach is nearly impossible, you're doing it wrong. After all, Saab designs components to fit into cars, not cars to fit around components. It's not like "OK, we'll use power unit type 3 in this one", making it imossible to, for instance, change the #6 spark plug or oil filter without dropping the engine, moving bracing, or other silly things.

Dave Hinz

Reply to
davehinz

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? I am, and I haven't. It needs a floor, and while I do have an NOS floor, I'm not sure that it's worthy. It might be a donor 93.

Dave Hinz

Reply to
davehinz

I always thought they were called "vacuum motors".

Walt Kienzle

1991 9000T
Reply to
Walt Kienzle

Well, it just goes from one position to the other, "motor" would seem to imply rotation, I think? Like in an air-powered orbital sander, or anything else with a rotary vane pump?

I dunno...it's one of 'dem air thingies. And that's my final answer.

Dave

Reply to
davehinz

in article BB23CC61.72C5% snipped-for-privacy@blueyonder.co.uk, Paul Halliday at snipped-for-privacy@blueyonder.co.uk wrote on 28/06/2003 22:51:

I told you I never use it - it's some time since I connected up the vac hose to the far LHS vent. Previously, I couldn't operate it and neither could my passengers (surprisingly!). One of my colleagues (a Golf GTI driver, but don't judge him prematurely - he loves Saabs) operated the switch today and it worked. Woo hoo!

Thanks,

Paul

Reply to
Paul Halliday

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