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Author Topic: harmonic balancner issues  (Read 1263 times)

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Offline JackstandJohnny

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harmonic balancner issues
« on: November 17, 2010, 10:21:13 AM »
the crank pulley/harmonic balancer on the jeep doesn't look to happy on my newly acquired ZJ.  its wobbling something fierce.  i noticed it today after the jeep wouldn't start........ i finally got it going but it was making one hell of a racket.  looked at the drive pulleys and the crank pulley is wobbling something fierce. (so is another freespooling pully)  i have a feeling this is my vibration problem as well.
is it fixable or should i just start pulling this engine out?

cheers
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~ rescue green JKUR on 35s.  typical rubicon build

Offline CatSplat

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Re: harmonic balancner issues
« Reply #1 on: November 17, 2010, 12:15:28 PM »
Is the actual pulley wobbling, or just the balancer part?
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Offline Rubi03 jef

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Re: harmonic balancner issues
« Reply #2 on: November 17, 2010, 12:27:56 PM »
are all the bolt in and are they all tight

might want to check that
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Offline WagoneerXJ

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Re: harmonic balancner issues
« Reply #3 on: November 17, 2010, 07:29:48 PM »
just check and replace the balancer if necessary.
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98 XJ Sport 2 Dr, 3", 33's and Bushwacker Flat Flares
87 XJ Wagoneer 5", Dana 44, 34" Swamper TSL's
97 TJ 5.2 Magnum V8 swap, 4" and 33" MTZ's- GF's Jeep
84 Mustang GT-Built 351W 5spd
97 XJ - 3.5", 31" BFG. 370,000 KMS and counting!

Offline cLAY

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Re: harmonic balancner issues
« Reply #4 on: November 17, 2010, 08:13:53 PM »
IS it a 4.0L? They used a 2 piece dampener, an inner ring and outer ring with a rubber band between the two. Sometimes the outer ring will start to walk off or it will spit out the rubber band. Replacement at that point is usually necessary but a used one can be used if it visually looks good.
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'93 ZJ, 5.2L, lifted/locked/36s..<gone>
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Offline JackstandJohnny

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Re: harmonic balancner issues
« Reply #5 on: November 17, 2010, 11:17:19 PM »
thanks guys,
and ya clay, that sounds like whats happening pretty much.  PITA to change?  just a regular 3 pronged puller should be good to pull it right?   looks like i have to pull the rad too...........
gonna do it this weekend ;)
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~ rescue green JKUR on 35s.  typical rubicon build

Offline The Machinist

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Re: harmonic balancner issues
« Reply #6 on: November 17, 2010, 11:37:06 PM »
Easy to change, use a harmonic balancer puller.  Three bolts that screw in to it, a 3 jaw will probably just break parts off.  PA sells them cheap, or I have a spare one you can borrow if you feel like driving to coventry hills.
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Offline Gearhead

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Re: harmonic balancner issues
« Reply #7 on: November 18, 2010, 07:54:52 AM »
Do not pound the replacement on with a hammer  !
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Offline Pookapotamus

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Re: harmonic balancner issues
« Reply #8 on: November 18, 2010, 08:01:34 AM »
is it not about time you sold this johnny? or have you not put enough mony into it to justify selling it?? 

 :P
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Offline JackstandJohnny

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Re: harmonic balancner issues
« Reply #9 on: November 18, 2010, 09:26:04 AM »
thanks jamey. PA will do ;)

pook this one ain't really worth selling :)  when it dies, i'll either fix it or strip it for parts ;)
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Offline Pookapotamus

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Re: harmonic balancner issues
« Reply #10 on: November 18, 2010, 09:36:43 AM »
dont lie, its on kijiji allready isint it!
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Offline JackstandJohnny

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Re: harmonic balancner issues
« Reply #11 on: November 18, 2010, 09:39:11 AM »
thats it pook. you're comin over to help me fix it ;)
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~ rescue green JKUR on 35s.  typical rubicon build

Offline Knox

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Re: harmonic balancner issues
« Reply #12 on: November 18, 2010, 09:51:51 AM »
Quote from: JohnnyC on November 18, 2010, 09:39:11 AM
thats it pook. you're comin over to help me fix it ;)

If you want another beer drinking supervisor give me a shout I'm around this weekend. that way you know Pook doesn't have to watch you all the time, he can take a nap or 2
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Offline Pookapotamus

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Re: harmonic balancner issues
« Reply #13 on: November 18, 2010, 11:31:15 AM »
bring it to my place we can test my plama on it and fix it real good!  8)
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Offline mike s

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Re: harmonic balancner issues
« Reply #14 on: November 18, 2010, 06:55:49 PM »
Let me know if you guys need a hand. Some run-out on balancer is okay, not a 8 600RPM race engine....right? If you can't fit the puller in with the rad in place, you can sometimes walk the balancer off with a couple of pry bars
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'94 YJ, 2.5" RE, 1"BL on 35"s, 8.8 w 4.88
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but still can't help myself
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