Re: Waste gate actuator - Saab 9000 Bulletin Board - Saabnet.com
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Re: Waste gate actuator
Posted by Tapani (more from Tapani) on Tue, 6 Aug 2002 07:44:14
In Reply to: Re: Waste gate actuator, Stephen, Tue, 6 Aug 2002 06:47:43
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Detach the actuator rod from the waste gate arm. Then measure how far you have to pull the rod to able to re-install it to the rod. 2mm should produce 0.4 bar base boost with stock set up. The thread has 1m pitch, so one full turn will produce 1mm more preload and result in approximately 0.03 bar change in base boost(close to 2mm initial setting).
With uprated s/w or other mods this will change due to increased exhaust volume flow and different pressure losses across the system. Also the spring inside the actuator will loose its strength with time.
Tapani
posted by 193.110.3...
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