Calgary Jeep Association

4x4 Related Groups => Tech Talk => Topic started by: JackstandJohnny on November 17, 2010, 10:21:13 AM

Title: harmonic balancner issues
Post by: JackstandJohnny 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

Title: Re: harmonic balancner issues
Post by: CatSplat on November 17, 2010, 12:15:28 PM

Is the actual pulley wobbling, or just the balancer part?

Title: Re: harmonic balancner issues
Post by: Rubi03 jef on November 17, 2010, 12:27:56 PM

are all the bolt in and are they all tight

might want to check that

Title: Re: harmonic balancner issues
Post by: WagoneerXJ on November 17, 2010, 07:29:48 PM

just check and replace the balancer if necessary.

Title: Re: harmonic balancner issues
Post by: cLAY 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.

Title: Re: harmonic balancner issues
Post by: JackstandJohnny 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 ;)

Title: Re: harmonic balancner issues
Post by: The Machinist 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.

Title: Re: harmonic balancner issues
Post by: Gearhead on November 18, 2010, 07:54:52 AM

Do not pound the replacement on with a hammer  !

Title: Re: harmonic balancner issues
Post by: Pookapotamus 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

Title: Re: harmonic balancner issues
Post by: JackstandJohnny 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 ;)

Title: Re: harmonic balancner issues
Post by: Pookapotamus on November 18, 2010, 09:36:43 AM

dont lie, its on kijiji allready isint it!

Title: Re: harmonic balancner issues
Post by: JackstandJohnny on November 18, 2010, 09:39:11 AM

thats it pook. you're comin over to help me fix it ;)

Title: Re: harmonic balancner issues
Post by: Knox 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

Title: Re: harmonic balancner issues
Post by: Pookapotamus 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)

Title: Re: harmonic balancner issues
Post by: mike s 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