Date: Mon, 10 Nov 2003 17:01:50 GMT From: "Terry F.Rock" <t.rocknopsamast.net> Subject: Re: 1987 16V Turbo idling problem
I'd like to caution you guys about which screws are used to adjust idle.... You can achieve the 850-900 rpm by either means, but the CORRECT method after cleaning the plate (assuming you have changed the original setting), is to first back off the 8mm nut and turn the slotted set screw out to allow the throttle plate to completely close....then turn it back in until contact just barely starts to move the plate. Go one quarter of a turn in, and secure the 8mm locknut. This set screw not only sets the initial plate clearance, but if you do not have the very small bypass gap (i.e the actual plate NOT touching the bore of the housing), the plate will start to 'wear' a groove into the bore over a period of time. Start the car and allow it to idle, until the radiator fans cycle at least once....loosen the 10mm locknut on the 10mm bolt protruding from the throttle housing. Adjust the screw in or out to achieve the idle rpm, and lock the 10mm nut.You will only have to do this one time EVER unless the vacuum somehow changes or engine wear occurs. Over a period of time the idle will deteriorate....just clean plate and idle will fall right back to where you set it this time...Good luck.Keep 'Saabing'. TR. ."Mike P" <stickitnopsamranus.com> wrote in message news:bolmbf$1eglvc$1nopsam63316.news.uni-berlin.de... > Hi, > > I cleaned the throttle body out today using carb cleaner and an old > toothbrush. > Now the car doesn't want to idle below 1300rpm. All the hoses and pipes I > took off > to clean it have been put back properly and are tight. I've checked the > other clamps too > by loosening them off and tightening them again. Car runs superbly > otherwise. > > Any ideas? > > Cheers > > Mike-- > > > ------------------------------------------------------------------------- > Mike Pearson mike_pearsonnopsamorld.com > Saab 900 T16 Aero > > --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.537 / Virus Database: 332 - Release Date: 11/6/2003
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