Break bolt lose on harmonic balancer keep spinning

Remove old crankshaft pulley ( Harmonic Balancer), by putting sturdy socket,think its 19mm, or 3/4 " on the center crankshaft bolt, with a good size breaker bar, wedge the breaker bar in between the suspension, and drive axle, to keep the breaker bar from spinning, while, you now turn the key inside the car, to engage starter, to spin the crankshaft,which may take several attempts, of turning the key, and putting socket back on, they are very stubborn,to break the center bolt loose,
Then remove harmonic balancer, with a PULLER, which requires 2 bolts, in the threaded holes, one on each side of the now empty center bolt hole, autozone , advance, has these to loan out, only requires deposit, which they give back to you, when you return it.
Put square key in slot on bare crankshaft, slide harmonic balancer,(crankshaft pulley,while lining up the square key,and tighten crankshaft bolt.

ONE THING 14 YEARS OLD,SOME GOES IT SELF.

Hello:

I have removed several of the harmonic balancer bolts, and it is difficult to hold the harmonic balancer from spinning when you remove the bolt. The bolt is normal thread, and removal is counterclockwise. There is a Honda holding tool you can get, or possibly borrow from a autoparts store. I always use either an impact wrench or a long breaker bar, and hold the harmonic balancer from rotating with a chain style wrench. I use an old belt to keep from damaging the damper pulley.
Good luck!

Being a Volvo it's not going to be easy or cheap.
The belt is about 30 bucks but one needs a torch generally and a special socket to get the crankshaft bolt out for the harmonic balancer. The Radiator and everything directly in the way has to be removed so it's a fair sized job and very difficult to find the right socket for the harmonic balancer bolt.
It's recommended to change the timing belt guides and tensioners on most vehicles and there should be a kit available.
Some vehicles must change the oil pump (or at least inspect and guage it to see if it's within specs for proper oil pressure.)
Some vehicles like the Intrepid have their waterpump in this location and this must be changed too.
Some vehicles have a reverse thread on the front pulley bolt so keep in mind to check this so you don't break it off and have to replace the crank or drill it out lol.,
These are not specific answers but perhaps a general guide to direct you. Z
I would suggest looking on www.kijiji.com for a local mechanic that can save you a few dollars with experience, the right tools and better prices than a shop or dealer perhaps.
Hope this helps a bit on your task.

Before you change anything,,check and see if everything is in line..Also feel all the pulleys and make sure everything turns ok...If the powersteering pump has been replaced,,sometimes the pulley was not pressed on far enough..If it seem to be the harmonic balancer make sure its not damage and the bolt in the middle is tight...If you remove it..You remove middle bolt,,then you have to use a puller to remove the harmonic balancer itself..unusuall for the harmonic balancer to be bad unless it was hit by something

YOU NEED A HARMONIC BALANCER PULLER TOOL AND A 15M SIX POINT SOCKET TO REMOVE HARMONIC BALANCER BOLT.TURN OFF RADIO AND REMOVE THE DRIVE BELT AND REMOVE THE NEGATIVE BATTERY CABLE. REMOVE THE STARTER SO YOU CAN PUT A LARGE SCREW DRIVER OR LARGE PUNCH TO STICK IN ONE OF THE FLY WHEEL HOLES TO KEEP ENGINE FROM TURNING WHEN YOU LOOSEN THE HARMONIC BALANCE BOLT. ALSO SCREW DRIVER AND PUNCH CAN KEEP ENGINE FROM TURNING WHEN REMOVER THE HARMONIC BALANCER. YOU WILL NEED A HELPER TO HOLD PUNCH OR SCREW DRIVER WHILE YOU LOOSEN THE BOLT. YOU CAN GO TO SEARS OR ANY AUTO PARTS STORE AND BUY HARMONIC BALANCER PULLER.TORQUE HARMONIC BALANCER BOLT TO 76 FT LBS.

yes!! you need to pull the harmonic balancer !! and the center nut i do believe...is a 22 mm and yes you will need a puller

you have a pulley locking up that is breaking belt. with belt off spin pulleys by hand and feel for anything abnormal. wobbles, sticks or bind. due this for all pulleys ran by that belt u will find your problem

First remove right front tire and support vehicle with a jack stand. Remove splash guard lower portion near the harmonic balancer. Remove all drive belts. First remove the A/C alternator belt. Loosen the 14mm bolt at the front of the belt tenioner and then loosen the tensioner bolt (it is the one that stands out, you use a socket on it.). The power steering adjuster bolt with be gained from the bottom. It has a 12mm bolt head on it. You will break the jamb bolt loose first and then loosen the adjusting bolt. Pull down on the belt the help move it after you've loosened it some.Then remove harmonic balancer bolt (19mm).If the harmonic balancer will not slide off the crankshaft then use a two finger gear puller. Place the harmonic balancer bolt back in the crankshaft but do not tighten it. Leave it about a half inch from being all the way in. Next place the puller onto the harmonic balancer (one finger on each side securely press into the belt groove. The center puller bolt will rest against the harmonic balancer bolt head. Tighten the puller bolt and make sure the harmonice balancer bolt does not turn. The balancer should come off at this point.