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Answerif you mean the external pulley on an EJ20...(the crankshaft pulley running the a/c and alternator belts) it is a 22mm socket (same as a 7/8" socket) and is loosened by using a good half inch drive breaker bar and socket. The crank pulley bolt is torqued to 130 ft/lbs. and will be difficult to move, but will eventually break free. It uses conventional right-hand threads. Whatever you do, DO NOT follow some internet advice and jam the breaker against the frame or garage floor and then crank the engine. This is not recommended by Subaru, is extremely dangerous and you could both damage your car and cause a serious injury this way. There is a special tool Subaru sells to hold the pulley so it doesn't spin while you take the bolt off. You can also stop the crank from rotating by putting the car in gear and setting the parking brake. If it's an automatic, you can lock the flywheel by using a large screwdriver or small pry-bar inserted in the flywheel inspection hole. I repeat, do not crank the engine with any tools attached to the pulley.
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Q: How do you remove the crank pulley on a 91 Subaru legacy?
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