Question about 1994 Chevrolet Lumina APV

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I need to find out how the harmonic balancer puller works. It says that I need a flywheel holder but the stores don't have one. How do I remove the harmonic balancer??

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  • Anonymous Mar 27, 2014

    Need information about removing harmonic balancer and timing chain.

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  • Master
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The flywheel holder is to keep the crankshaft from turning while you remove the crankshaft pulley
bolt(s).

There are alternatives to stabilizing the crank -- I sometimes just put a piece of 1x2 lumber under the belt going around the crank pulley.

An air (impact) wrench is a good way to remove the bolts without having to hold the crank.

You can also put a squeeze clamp across the belt to keep it tight while you loosen the bolt.

There are many ways which I'm sure others on this post will describe.

But, once you get the crank pulley off, remove the balancer bolt(s). (Don't know exactly what bolt configuration you have -- but you already know that.)

You'll see the puller bolt holes in the balancer. This is where the puller bolts go. Put the bolts thru the appropriate slots in the puller and then into the balancer and tighten the base of the puller. Then you tighten the main bolt of the puller which pushes agains the center of the crank and forces the balancer off.

If you need more info, please let me know.

Charlie

Posted on Oct 02, 2009

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  • Master
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Use a steering wheel puller.

Posted on Oct 02, 2009

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1 Answer

1999 Sirion. How do I remove the harmonic balancer?


You're best bet to get a full shop manual for this car is going to be on eBay Daihatsu Workshop Manual eBay


To get just the harmonic balancer off you will need a heavy duty gear puller; they do make harmonic balancer pullers but a really good gear puller will work just as well. Whatever you do, don't try prying it off with a bar, or hitting it with a hammer; you'll either damage the crankshaft or the balancer or possibly both.
It's also a lot easier to do when the motor is out of the car; you'll need a lot of room to work getting it off.
Back to the balancer; take all of the belts off, loosen the bolt in the center of the balancer (you will need to lock the flywheel so the crank doesn't turn when you try to loosen the bolt). Once it's loosened, take it out a couple of turns, but no more than that, attach the puller and start pulling it off, once you see it move, you can take the puller off, remove the bolt, you should be able to pull it off by hand now; if not, reattach the puller, and finish pulling it off. There is a little "guide pin" in the crankshaft called the Woodruff Key, you'll want to take it out and inspect to see if it shows any wear, or distortions, if so, replace it. Leave it out until you're ready to reinstall the balancer; it's how the balancer lines up with (and holds it in place) crankshaft. This is not a job for a beginner.

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