Updated..Rattling NOISES!....Harmonic Balancer! - Page 4 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 09-02-2003, 09:08 PM   #31
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What about that sendor down there am I close to it when pulling off the balancer?


thanks..do you know the size of the bolt you got from lowes and where exactly did you put it on the puller or balancer?

thanks
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Old 09-02-2003, 10:03 PM   #32
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I should have mentioned earlier - Yes, the harmonic balancer is the entire pulley assembly-thing that is mounted on the front of the crankshaft. It drives all your other things like the water pump, A/C compressor, power steering pump, and alternator.

The sensor down by the balancer is the crankshaft position sensor, and it isn't necessary to do anything with/to it to get the balancer off. There'* a trigger ring for this sensor that is mounted to the balancer as part of the balancer itself (on the engine side). If you want to replace the crank sensor as a matter of preventative insurance, that'* up to you, but I didn't bother with doing mine at the time, as it was (and still is) working fine.

The 3 bolts I had to get were either 6mm or 1/4 inch by about 3 inches long. I can try to check tomorrow for you to be sure, as they aren't here at my house (I do all my work in my folk'* garage - it'* got a whole lot more room than mine does). These bolts first pass through the three slotted ears of the balancer puller, then pass through the slotted holes in the front plate (of the balancer), and screw into the hub of the balancer (which is behind that front plate). Again, I'll try to check on the bolt size tomorrow.

Also, when you loosen the center crank bolt, don't take it all the way off at first. The center bolt of the balancer puller has a cone on the end of it to keep from messing up the threads in the crankshaft for this crank bolt, and the cone is too large to fit down into the center bolt hole of the balancer itself. I loosened the crank bolt and backed it out completely, then screwed it back in a couple of turns, then put the cone of the balancer puller against the head of the crank bolt, and tightened it down against this bolt to pull the balancer out, until it came off the end of the crankshaft.

Again, let me know if this helps, or if there'* anything else you need to know.

Brian J
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Old 09-06-2003, 10:25 PM   #33
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gearhead...fuddy...and all I replaced the harmonic balancer and life is quiet and good again...thanks a ton!
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Old 09-06-2003, 10:56 PM   #34
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Old 09-06-2003, 11:10 PM   #35
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Congrats !!!! Glad you were able to get it done!!!
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Old 09-06-2003, 11:55 PM   #36
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Default its probly the ballancer

My car did the exact same thing it would make a ratling ticking noise at idle and yet it was silent when the car was moving many people thought it was the water pump even my mechanic at first but turned out to be the harmonic ballancer
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Old 09-07-2003, 10:00 PM   #37
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Thanks..I am soo happy!
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Old 09-08-2003, 04:08 PM   #38
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Party-time!!! (Like I need a reason )
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Old 10-06-2003, 07:21 PM   #39
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did you get this fixed? I have the same, replaced the water pump, still there. Sounds like a diesel engine on a large truck at times. Removed the belt to eliminate alternator, etc and the noise was still there.
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Old 10-06-2003, 08:26 PM   #40
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yes the harmonic balancer fixed it!
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