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Old 10-05-2015, 07:07 PM   #1
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Default Harmonic Balancer

Started getting a squealing noise last Friday, and after looking at it, I thought it was the belt tensioner. So Saturday I bought a replacement, and tried to change it myself. After I got the belt off, I noticed that the ring weight on the balancer was not attached, and was the true cause of the squealing noise.

I am not sure if this is a job I can do myself. After reading the threads here, and searching online, It looks like it takes some specific tools to do this correctly (Harmonic balancer puller, Harmonic Balancer press, and a crankshaft/balancer lock to torque against when removing/reinstalling.)

Has anyone here done this without these specific tools? Are there any tricks? Can this be done by someone with basic tools? I have good socket sets, and air impact and wrench.

I don't have this tool #8932

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Old 10-06-2015, 12:34 AM   #2
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Default Re: Harmonic Balancer

I bought the tool you linked to and that was it. I was lucky enough with some patience, a little light tapping and some wiggling to get the balancer off and on without a puller. As long as you have or can get a big torque wrench you should be able to get it done.
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Old 10-06-2015, 02:01 PM   #3
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Default Re: Harmonic Balancer

Quote:
Originally Posted by obie View Post
I bought the tool you linked to and that was it. I was lucky enough with some patience, a little light tapping and some wiggling to get the balancer off and on without a puller. As long as you have or can get a big torque wrench you should be able to get it done.
Did you have to remove the Radiator and Fan, or were you able to do it without opening up the front of the engine bay?
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Old 10-06-2015, 02:34 PM   #4
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Default Re: Harmonic Balancer

I just took out the fan and shroud. That was probably the toughest part.
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Old 10-06-2015, 05:14 PM   #5
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Default Re: Harmonic Balancer

I got a couple of quotes from local mechanics to do this, and they were not in my budget at this time. However, I need this truck for work, so I just ordered the locking tool from KTC Auto Tools - Mercedes Benz Flywheel Locking Tool I have also ordered the new Balancer, serpentine belt, and pulleys (tensioner and idler). All parts should be here next week. Until then, I am stuck using my wife's Honda minivan, so wish me luck.
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Old 10-06-2015, 09:08 PM   #6
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Default Re: Harmonic Balancer

Make sure you get a new bolt, and it's the right one. After you have everything apart, and going back together, make sure your locking tool is engaged and retighten it. The last couple of degrees on my torquing procedure my tool let go and I whacked my elbow on the little nipple sticking out of the rad resevoir and busted it off. Luckily I was able to repair it and my elbow eventually quit throbbing.
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Old 10-07-2015, 02:29 AM   #7
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Default Re: Harmonic Balancer

there is a trick to not buy the tool, but it is too risky, and everybody here said it is a NO NO, that was not worth the hazards involved and i have to tell you they are right, to be healthy is very precious, more than a whole van.
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Old 10-07-2015, 11:22 AM   #8
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Default Re: Harmonic Balancer

Two sources for getting a flywheel lock -

The official MB tool goes for around $135.00

KTC flywheel lock for $20.00 - http://www.amazon.com/Mercedes-Benz-.../dp/B0089PY4XM

Bruce
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Old 10-07-2015, 06:09 PM   #9
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Default Re: Harmonic Balancer

Make sure you get a OEM Balancer, not an aftermarket if you want it to last! This along with the tensioner pulley are not items you want to scrimp on!
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Old 10-08-2015, 03:17 PM   #10
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Default Re: Harmonic Balancer

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Originally Posted by kjg912 View Post
Make sure you get a OEM Balancer, not an aftermarket if you want it to last! This along with the tensioner pulley are not items you want to scrimp on!
Oops, I bought the Doorman aftermarket parts. They are not here yet. Should arrive middle of next week. What problems can/should I expect.
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