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The flywheel has to be held in place by a holding tool, Remove the mounting bolt, then use a balancer remover to pull the harmonic balancer.
Remove the belt. Remove the bolt that attaches the harmonic balancer. Rent or purchase a harmonic balancer puller. Follow the Instructions with the puller and remove the old balancer. Install the new balancer making sure to line up the keyway, a little oil helps. Put the retaining bolt back in and tighten to manufacture specs.
first remove serpintine? fan belt then remove large bolt in middle of harmonic balance. this bolt usually has left hand thread next with a harmonic pulley ,puller, remove harmonic balancer.when removing this, there is a key in the balancer and shaft if a new key did not come with new balancer,make sure not to loose the old one install new balancer with key.use the bolt to pull balancer up tight where it needs to be and use proper torque on bolt
I have not taken one off a 74 specifically but every one I have done required a Gear Puller. The puller will bolt to the Harmonic Balancer and the center bolt sets on the head of the Crank Shaft bolt. As you turn the center bolt in it will pull the balancer off.
get a longer bolt to start it . use this bolt until it is pulled up enuff to start the proper bolt
You need a harmonic balancer puller, and a 1/2 in drive inpact wrench.
Pull the belts, remove the center retaining bolt then use a harmonic balancer puller to remove the pulley. Make sure you use a disk that will protect the threads of the cranshaft when you tighten the puller.
There is a front pulley, a center bolt and washer AND a spacer behind the washer that has to come off before putting on the puller. I didnt know this and tried to pull balancer, this spacer is pressed in or it was after i tried to pull balancer off over it !
Remove the right front wheel and inside fender skirt. Remove the serpentine belt. Remove the bolt at the center of the balancer. If a 3.8L engine, use special tool to pull balancer off, otherwise use hands to pull it off, wiggling as necessary.
Pull the retaining nut then use a puller to remove the harmonic balancer.
Replacement of the harmonic balancer is most conveniently done with the engine out of the car. 1. Release the belt tensioner and remove the serpentine belt. Take note of its routing. 2. Remove the bolt from the center of the balancer. 3. Use an appropriate puller to remove the balancer from the crankshaft. 4, Use the center bolt to pull the replacement balancer onto the crankshaft. Replace the serpentine belt.
Harmonic balancer serviceThis requires a gear puller. Always note: A harmonic balancer is made of two parts. The two parts are metal and they are made to nest one inside the other. If you look at the balancer you will notice a ring somewhere in the device. This ring is made of isolation material. Never pull the balancer from any point outside the ring. It will likely separate the balancer at this intersection. On my 1996 van I used a two arm puller because the gaps in the "spokes" of the inner part allowed a two arm puller to be centere over the mounting bolt (center of pully). If two arm type does not work then a three arm puller will likely be the one you need. If the blancer does not have spokes then you will need a steering wheel type puller or a puller made specifically for you balancer. I have had to make pullers for older 1990 and earlier engines. Once you have the correct puller you will need to remove the center mount bolt on the balancer. Usually you can then remove the washer that is used on this bolt and then re-install the bolt but do not thread it all the way in. You can now use the head of the bolt as the push point for the center bolt of the puller. install the puller of your choice and slowly and carefully tighten the pully . The balancer should slide slowly off the shaft.To reinstall the balancer. align it with any keyways or other markers on the shaft. Push the balancer on far enough for the installation bolt to be used with the washer. Then use the installation bolt to pull the balancer into position.Good luck.You should be done at this point.