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Old 06-16-2003, 05:53 PM   #1
ac_gohan
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Join Date: Jul 2000
Location: Bay Area, I-Speed Tech
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2000 2.5 RS-T coupe
T3/04 Link'd 2 10 PSI

Default Perin underdrive pulley

Was wondering if anyone knew how to get a Perin underdrive pulley off. What's the trick or is it just brute force?
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Old 06-17-2003, 10:40 PM   #2
ImprezaRS dot com
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Put a breaker bar on the socket wrench, place the socket on the crank bolt, and set it so that the end of the bar is against the ground on the battery side of the motor, unplug the wires to the coil pack, and crank the motor 1 revolution with the starter, having a friend hold the breaker bar in place.

Make sure your friend wont sue you in case he get's hurt.

Or, Have your friend wedge a screw driver into the flywheel teeth through the access port at the top of the bell housing so the motor wont turn, and you crank the breaker bar with your own strength.
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Old 12-11-2005, 11:20 PM   #3
Crazy D
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.........or you could use a chain wrench...
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Old 12-12-2005, 05:14 AM   #4
EcksJay
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when I did mine, I just let the car in gear, put a ratchet on in, and gave it a swift hit with a hammer. Off it came.
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Old 12-12-2005, 05:31 AM   #5
jam69007
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i left mine in 5th gear, and used a 2ft breaker bar. once the bolt is out, tap the pulley w/ a soft hammer. it should come off really easy.
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Old 12-12-2005, 05:43 AM   #6
sixpack subaru
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Faded, Stonechipped Red

Subaru Stars

Quote:
Originally Posted by ac_gohan
Was wondering if anyone knew how to get a Perin underdrive pulley off. What's the trick or is it just brute force?
In my experience fitting alloy-underdriven pullies, I ALWAYS used loctite or simillar. Using the screwdriver on the ring-gear/flywheel is good, just don't snap the end off your screwdriver like one of tech's did and not tell anyone...then when he started the Engine it put the broken piece of screwdriver through the diff housing from inside the bell housing!!!
Also, it's nice when the gearbox holds up to loosening the Crank pulley bolt, but when the 5th and Rev nut/Mainshaft nut lets go, (cos it was already loose-and making a slight noise in 5th on light throttle ), you will not enjoy this method. I think the safest way, (mechanically speaking), is to do the breaker bar on the ground thing. Having said that, I made my own 'strike-spanner', out of a 22mm socket with one 'flat' of the drive side cut out at 90 Deg. Then I welded a 10" 1/2" drive extension bar to it and put an EA82 Head stud in later when it started to bend!!! I am still using this tool to loosen crank bolts on ALL sorts of vehicles!!
Years later I was looking through the Stahwille ctalog and saw the 'Strike-Spanner' on sale....and that was when I named It!!!!!

Sixpack(admires tool and years of scarring.... )
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Old 12-12-2005, 05:43 AM   #7
sixpack subaru
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Faded, Stonechipped Red

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Don't ask about re-fitting/torquing the bolt!!
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