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Old 12-23-2004, 12:53 PM   #1
lotus2843
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Default The crank pully on my ej22t is "wobbly" WHATS UP??

Today i noticed that the crank pully on my legacy had some play in it while in motion. Whats up with that??
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Old 12-23-2004, 01:58 PM   #2
maciek
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Maybe try to tighten the bolt...I know of a few instances where the bolt came loose.
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Old 12-23-2004, 09:52 PM   #3
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Yes, may have worked itself back. However, some look like they wobble slightly even when the bolt is tight. Brian
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Old 12-23-2004, 09:56 PM   #4
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...optical illusion in most cases.....my pulley has looked 'wobbly' for years....
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Old 12-24-2004, 03:23 AM   #5
wrxsubaru
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If its trulley wobley, it broke. Theres a spring mechanism to cusin the blow of the AC on the crank pullie when the AC starts up, and spring can break and make the pullie look wobblie, becasue the pullie is kindof seperating. I would definitley replace it as soon as you can.
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Old 12-24-2004, 01:03 PM   #6
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There is a keyway in the pulley and a small metal key (tab) that inserts into a slot in the end of the crankshaft. If that slot in the crank is becoming worn, it can cause lots of problems, including random shifts in mechanical timing that can lead to motor failure. Make sure you take it apart and check it.

Alternatively, it may be the rubber layer in the crank pulley... the pulley is actually two pieces, an inner and an outer that are separated by a rubber layer that acts as a harmonic dampener. As the rubber ages sometimes it delaminates from the metal and allows the outer ring to sit crooked on the inner part, causing a wobbling motion. If that is the case you will need to replace it. Having the outer part of the crank pulley come off while driving is not my idea of fun.

Good luck!
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Old 12-24-2004, 03:35 PM   #7
Matt Monson
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I have one if you need a replacement...
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Old 12-24-2004, 05:46 PM   #8
lotus2843
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Quote:
Originally Posted by Matt Monson
I have one if you need a replacement...
Im pulling the engine to build and put in my GC8 impreza. i plan to use a billet pully
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Old 12-24-2004, 06:25 PM   #9
Matt Monson
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Quote:
Originally Posted by lotus2843
Im pulling the engine to build and put in my GC8 impreza. i plan to use a billet pully
If you are going to use a 14lb or lighter flywheel, you will want to seriously consider using the stock pulley. Gains with pullies on boosted cars are minimal at best, and if the rotional mass gets too low, the heads can skip teeth on the timing belt among other things...
http://www.spdusa.com/pulley_kit.htm
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Old 01-10-2005, 10:07 AM   #10
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Mine fell off. it sucked.

replaced it as a good chunk of material was missing from original... also got a new sprocket and t-belt while in there.

good luck.

Roger

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Old 01-10-2005, 10:45 AM   #11
DJ_STI
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Mine looks like it wobbles too. And i get a kind of skreething annoying noise slighly from the engine bay. I don't know if the belt is worn or what but it only has 50,000 miles on it, i dont know what to do either.
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Old 01-10-2005, 11:28 AM   #12
lotus2843
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i may just go to subaru for it
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Old 01-13-2005, 03:07 AM   #13
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i know that on the 300 zx tt, the crank pulley being loose means crank walk. thats when your crank actually slides over alittle bit, and ****s your motor up. id say look into that too.
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Old 01-13-2005, 11:39 AM   #14
lotus2843
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Coming from a dsm world i have heard about crank walk a million times, i havnt even touched the car yet. im going to get a socket on it and see if its loose
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Old 01-15-2005, 12:30 AM   #15
Tim Sanderson
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I would pull the accessory belts off and remove the crank pulley. You should really check the condition of the woodruff key before you just tighten it and potentially crap it up worse.
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Old 01-15-2005, 07:58 PM   #16
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Quote:
Originally Posted by DJ_STI
Mine looks like it wobbles too. And i get a kind of skreething annoying noise slighly from the engine bay. I don't know if the belt is worn or what but it only has 50,000 miles on it, i dont know what to do either.
Thats pretty high for a belt.
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