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help: crank pulley wobble

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Old 09-04-2015, 02:22 PM
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Default help: crank pulley wobble

so I was looking over my GXP today to make sure I will pass inspection next week and noticed something that threw a red flag to me. at idle my crank pulley looks to have a pretty noticeable wobble while turning. checked with a bar to see if it moved while the engine was off and nothing. the engine runs smooth as silk and has no vibrations... anyone have a clue? or anyone else had this happen as well?
Old 09-04-2015, 08:10 PM
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Not sure but I found a couple of similar older posts so it could be common. Video on Youtube.


http://www.gmls4.com/index.php?topic=2014.0

https://ls1tech.com/forums/ls4-perfo...placement.html
Old 09-05-2015, 06:52 AM
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yeah looks the same but mines worse than that.
Old 09-05-2015, 10:03 AM
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Time to replace. Really easy job to do provided the right tools. Should take no more than a hour to be honest
Old 09-05-2015, 10:06 AM
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I thought I read that bolt has to be torqued to 240ft lbs. That has to be a mother unless that motor is out. That is standing on a pipe torque.
Old 09-05-2015, 10:14 AM
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Have the car high enough with a pipe it's easy that extra tty portion will kill you though lol
Old 09-05-2015, 03:57 PM
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Originally Posted by rottonj
I thought I read that bolt has to be torqued to 240ft lbs. That has to be a mother unless that motor is out. That is standing on a pipe torque.
Or having an impact gun that does 650 ft lbs lol
Old 09-05-2015, 04:47 PM
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well the stock one is like 180 on rock auto... I wouldn't imagine they make a performance one that's maybe lighter or more durable. is that a good price for a balancer?
Old 09-05-2015, 06:53 PM
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Just google that part number and check eBay as well , you are supposed to replace that balancer bolt as well.
Old 09-05-2015, 07:14 PM
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Originally Posted by spawne32
Or having an impact gun that does 650 ft lbs lol
You have a side job changing dump truck tires ?
Old 09-05-2015, 11:19 PM
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Originally Posted by rottonj
You have a side job changing dump truck tires ?
lol i dont believe in buying cheap tools :x
Old 09-06-2015, 06:59 AM
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so far amazon is cheapest for the pulley at about 155. thanks guys.
Old 09-06-2015, 07:34 AM
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Originally Posted by spawne32
lol i dont believe in buying cheap tools :x
No wonder that car doesn't fit in the garage, your compressor must be huge lol!



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