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Old 03-14-2018, 03:19 PM
jib32 jib32 is offline
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Default How to remove bolt from harmonic balancer

I'm trying to remove the harmonic balancer and the main bolt is stuck. I've tried using a strap wrench to hold the pulley in place and loosen the bolt, but can't make any progress. I've got an electric impact wrench, but it's too long to fit in the gap, even with the radiator removed.
How do you get this bolt loosened?
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Old 03-15-2018, 04:33 AM
jib32 jib32 is offline
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Default Re: How to remove bolt from harmonic balancer

Update: I got the main bolt off by putting a breaker bar with a 13/16" socket over it, then wedging the breaker bar under the passenger side frame bar with a block of wood, then tapping the ignition (turn the key for as short of a time as you can). The first time I was using a breaker bar with a flexible head, and it popped off. The second time, when I got the bolt off, I used one with only a rotating square end. There needs to be as little play as possible in the whole setup for it to work.
Now I just need to remove the four smaller bolts surrounding that main one. Any help in getting these off would be greatly appreciated.


Update 2: I got the other four bolts off and was able to pull the harmonic balancer successfully. I used a breaker bar and a ratchet with a pipe, although a ratcheting breaker bar would also have worked. I held clockwise pressure on the breaker bar and loosened each of the other bolts with the ratchet/pipe combination. Some of the bolts didn't want to loosen at first, and when I returned the ratchet to its starting position I would hear a large click. The solution was to use a longer range of movement on each turn.
For the fourth bolt, I reversed the direction of the ratchet, took the pipe off the handle, and tightened one of the other bolts back. I used the breaker bar to crack the fourth bolt, then loosened it a few turns with the ratchet. It took two more tries of tightening another previously-loosened bolt and unscrewing the most recently-tightened bolt before all four would spin in their holes without rotating the harmonic balancer. From there I was able to use a 90 degree angled drill with a socket attachment to remove all four bolts quickly (they don't get much easier to turn until there are only a couple of threads left in the hole). The bolts all seemed to be covered with anti-seize that probably hadn't moved in 17 years; I'm not sure how long the stuff is supposed to last, but I think its anti-seize properties wore off at some point.

Last edited by jib32; 03-15-2018 at 06:33 AM.
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balancer, bolt, harmonic, stuck

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