Question about 1997 Ford Thunderbird LX

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Harmonic balancer What are the stepts involved in replacing it. The ring that is attached to the pulley fell off. Is this a real hard thing to do? Or can a novice do this

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  • hunter_menji Jan 18, 2009

    how do I remove it and keep the pulley from turning? while taking the middle bolt out?? Thank you.

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You'll have to remove the drive belt. Remove the lower pulley and large bolt in the center of the balancer. If the bolt is on really tight, remove a spark plug, move the piston to the bottom of the cylinder by turning the engine, stuff a bunch of rope in the spark plug hole, as much as you can. Now turn the engine counter-clockwise and the center bolt will break loose for you. Once the bolt has broken loose, rotate the engine clockwise again just enough to remove the rope. Remove the balancer bolt and get a balancer removal tool and pull the balancer off.

Posted on Jul 01, 2008

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Why does the belt on my van keep coming off or breaking/stripping off?


Check the harmonic balancer. That is the the pulley that is attached to the crankshaft. The outer ring of the pulley, where the belt rides, is pressed onto the hub of the pulley and isolated from it by a rubber bushing that separates the outer ring (belt pulley) from the inner part that is attached to the crankshaft. The rubber will dry out and shrink as it ages and the outer ring will slide in or out (front or back), causing belt misalignment. This can cause stripping and jumping off as it doesn't provide the proper path for the belt. The new balancer is fairly easy to install, and they only cost about $60.00 USD. You need a harmonic balancer puller to remove it, but most auto parts stores will provide a loaner for the DIYer. Here is a picture of the one that goes on your Montana.....



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Why is my bottom pulley wobbly an the cause of it


The harmonic balancer is a sttel ring attached to the center section with a compressed rubber sleve. When the rubber gets oil soaked it swells and starts to fail - wobble. This is amplified by the high tension of the sepentine belt. Fix for it - replace the harmonic balancer. Before it comes off leaving uou stranded

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1 Answer

Why is the harmonic balance eating into the timing cover?


On most vehicles today, the crankshaft pulley acts as the harmonic balancer. It also has the grooved outer ring that the serpentine belt rides on. Between the central hub of the balancer and the outer ring is a strip of rubber that the outer ring is pressed onto. This rubber, over time, ages and shrinks. This allow the outer ring to walk inward (or outward) of the centerline of the pulley. This causes the serpentine belt to wear out prematurely and can cause the problem you describe. You need a new harmonic balancer. It comes complete with the rubber and outer ring already attached. Check your belt at the same time to see if it needs replaced as well.

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2 Answers

My crank pulley is loose on 2009 jeep Cherokee how do I tighten


There is one bolt in center of pulley/harmonic balancer. Sounds like the harmonic balancer has started going bad..if bolt in center of pulley is loose...which is fairly uncommon tighten which you just tighten Iike any other bolt. If it is tight then you will need the replacement. Replacement is a good bit more involved. Radiator has to be removed, special tool, harmonic balancer pulley remover is required..it will remove pulley. Then you line up pulley with keyway..tap on with rubber hammer until pulley is on far enough for bolt to be started..tighten the bolt and it pulls the pulley all the way into place.

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1 Answer

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The Harmonic balancer is held on to the front of the crank shaft with a bolt. there are pullys pressed onto the harmonic balancer in rubber.If more pulleys are needed for more accessories they are bolted to the harmonic balancer.

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2 Answers

Had my Harmonic Balancer replace now it shuts off after 10 mins of it being on


the garage may have did something to the crank position sensor that is located behind the harmonic balance. there is a ring gear there to for the timing

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1 Answer

I have read the question about the crankshaft pulley wobbling really bad and needing a harmonic balancer and my question is....is the harmonic balancer and the crankshaft the same thing? I have the same...


The end of the crankshaft is usually called a snout, because that is what it looks like — just a shaft sticking out of the front of the engine between 1½" and 2" in diameter, with a threaded hole in the front, and a key-way along the side.

The harmonic balancer slides over the end of the crankshaft, and is held in place by a bolt and washer goiing into the front of the crankshaft.

The harmonic balancer usually has a ring around the outside separated from the part that goes over the crankshaft by a ring of neoprene. The neoprene and that outer ring are the vibration damper, preventing the crankshaft from ringing. On the face of the balancer the pulleys for accessories are mounted.

Every engine I have worked on — except motorcycles, lawnmowers and outboards — use this arrangement.

Regarding your case, I would do the disassembly first, then — with the parts in your hand — go get the replacement parts. Best guarantee I know of to make sure you get the right parts.

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1 Answer

I have a 93 blazer s 10 and the serpentine belt fell off. how do i work the tensionere thing?


I dont think that the tentioner is your problem ... You may need to replace your harmonic balance pulley located on the crank shaft pulley...

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