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Old 02-13-2017, 01:52 PM   #1
Dn240
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Default 92 Harmonic Balancer spins on crank?

My HB does not click or snap onto the crank, it just spins freely. Is this normal? There is no Key to hold it in place.

Sorry if this is a dumb question, just my first time going back together with one after doing a TB.
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Old 02-13-2017, 01:53 PM   #2
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And how the freak do you post a pic here????
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Old 02-13-2017, 02:03 PM   #3
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Pics need to be hosted elsewhere, like imgur or the like, then linked here.

The balancer should engage a nub on the crankshaft gear, unless the nub is sheared off. It's not a big nub, just enough to located it, prior to tightening.
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Old 02-13-2017, 02:06 PM   #4
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You either put the crank gear on backwards or sheared the nub off.



In order to post pics you need to upload them to an image hosting site. Then paste the address into the box that pops up when you click the little mountain icon.

Alternatively, you could donate to the site which turns your name blue and allows you to upload them directly to the server.
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Old 02-13-2017, 02:06 PM   #5
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For gentle alignment purposes only. One little nub fits into the slot on the crank, and the other (protruding upwards off the face of the gear) fits into a little notch on the front pully/harmonic balancer. It's a small nub, it will only engage when the pulley is about fully seated.
/that's what she said
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Last edited by JohnMc; 02-13-2017 at 02:07 PM.. Reason: Too slow, treed at the light with pics from hiperf!
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Old 02-13-2017, 02:22 PM   #6
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ok I know what nub your talking about, let me go check it out...
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Old 02-13-2017, 02:28 PM   #7
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The balancers also have a nasty habit of spinning on their hub. Make sure it's not the outer pulley that's turning while the hub is stationary.

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Old 02-13-2017, 02:50 PM   #8
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ok got the picture now, thanks guys
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Old 02-13-2017, 03:03 PM   #9
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ok how do I upload to the server now that I donated to the site?
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Old 02-13-2017, 03:30 PM   #10
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It will take a day or three for Dana to get everything processed. When you see your name turn blue and your status changes to contributor, you're all set.
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Old 02-13-2017, 03:38 PM   #11
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OK thanks for all the help guys!!!!!!!!!!!!!!!!!!!
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Old 02-13-2017, 05:55 PM   #12
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Quote:
Originally Posted by hiperfauto View Post
The balancers also have a nasty habit of spinning on their hub. Make sure it's not the outer pulley that's turning while the hub is stationary.

This $h!t just happened to me. new balancer was the plan, turned into a 450K mile overhaul of everything but the bottom end.
http://forums.turbobricks.com/showthread.php?t=329558
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Old 02-14-2017, 02:06 AM   #13
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Thanks for donating btw Dan!
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Old 02-14-2017, 03:26 AM   #14
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I've had the "spinning" thing happen where the rubber broke down. Just need to put a new one on if that's the case. Strangely I've seen it way more frequently on 740s but I can't tell you why, I think they're both the same...

Saw you are in CO-where abouts?
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Old 02-14-2017, 07:50 AM   #15
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I'm in Fort Collins! Rubber broke down huh?.....
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Old 02-14-2017, 10:26 AM   #16
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Yup, not that uncommon as they age.

One option, if you have one that's in decent shape, drill the inner and outer, and pin it.
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Old 02-14-2017, 11:06 AM   #17
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Seat new one correctly and use special tool and a pipe and a breaker bar to torque.
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Old 02-14-2017, 01:51 PM   #18
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This old HB is not going to hit the nub unless i torque it down with the gun. Should I be able to do it by hand? Would a new HB go on by hand? I really don't want to wait for a new HB to come in the mail but if I need it then thats a priority.
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Old 02-14-2017, 02:21 PM   #19
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You should be able to walk it onto the crank by hand without much issue. If it won't slide on, maybe clean the rust/corrosion from the crank and the ID on the balancer.
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Old 02-14-2017, 02:30 PM   #20
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rodger that
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Old 02-15-2017, 07:10 AM   #21
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When I lived in broomfield the yards were plumb full of Volvo's can't find one there
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Old 02-16-2017, 11:54 AM   #22
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Quote:
Originally Posted by gsellstr View Post
Yup, not that uncommon as they age.

One option, if you have one that's in decent shape, drill the inner and outer, and pin it.
I've repaired a balancer in a similar fashion.
I drilled through laterally and tapped a hole for a bolt.
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