Question about 1989 Oldsmobile Delta 88

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How to replace the harmonic balancer - 1989 Oldsmobile Delta 88

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This usually requires a special tool to pull the balancer off, but the last one I took off slipped off by hand. What you have to do is first is loosen the nut. It takes a large socket. 19mm or bigger. You may need to take the plastic skirt off the fender well to get access. Next, you will need some way to lock the engine from turning. If you have a manual trans, put it in a high gear and set the parking brake. If you have an automatic, look for something near the pulley that you can poke a good size screwdriver into that will pry against the engine. If nother like that is available, the last resort is to remove and jam the flexplate gear with a vice grip.
Once you have the bolt loose, take all the belts off. Then see if you can pull the damper off by hand. If not, use a 3-jaw puller or borrow/rent a damper puller. Autozone loans pullers for a refundable deposit.

To replace, reverse procedure, voila.

Posted on Sep 10, 2010

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  • Expert
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You will need a puller after you take out the retaining bolt. The ballancer is pressed on the crank shaft.

Posted on Sep 10, 2010

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Posted on Jan 02, 2017

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SOURCE: harmonic balancer

Is the pully on correct?

Posted on Dec 01, 2009

  • 66 Answers

SOURCE: replacement time harmonic balancer 1994 olds 98

not sure abot book time. actual time is about 45 minutes with proper tools

Posted on Jun 29, 2009

  • 599 Answers

SOURCE: no treads on harmonic balancer

the pulley on the crankshaft should have grooves in it for the belt, otherwise the belt will not turn. is the pulley broken off, get back to me. there are NO technical servise bulletins on this item,if you need more help get back to me, Thanks Ray

Posted on Dec 11, 2009

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