Help with Harmonic Balancer

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Help with Harmonic Balancer

Postby dvdcts » Sat Mar 06, 2010 7:06 pm

Ok I had a bad vibration that we traced to the Harmonic Balancer. I can't get it off because the woodruff key has sheared. This had to happen on the tightest bolt on the entire truck.

How the heck do I get it off?
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Re: Help with Harmonic Balancer

Postby onetouch » Sat Mar 06, 2010 7:39 pm

dvdcts wrote:Ok I had a bad vibration that we traced to the Harmonic Balancer. I can't get it off because the woodruff key has sheared. This had to happen on the tightest bolt on the entire truck.

How the heck do I get it off?


If I'm reading this right it's the bolt you can't break loose?

If that's the case, use a good breaker bar with your socket and brace it on the frame.

Disable the ignition (so it doesn't fire) and just bump the starter and it will break loose.

Jim
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Postby shooter » Sat Mar 06, 2010 7:47 pm

Is the key a removable type or part of the shaft or pulley?
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Postby dvdcts » Sat Mar 06, 2010 7:59 pm

yeah it's the bolt! This thing is tight as hell. I have a friend bringing a impact wrench so we will try that 1st. Then it's the bump start trick.
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Postby dvdcts » Sat Mar 06, 2010 8:00 pm

It's a replaceable key.
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Postby shooter » Sat Mar 06, 2010 8:04 pm

Impact should get it easy. Might need to pull the radiator; hope not. When you remove the bolt, clean it and the bolt hole well and give it a light coat of antiseize for reinsertion.
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Postby ssmokn » Sat Mar 06, 2010 8:32 pm

Mine was pretty tight when I did my timging belt a few weeks ago. It was the first time the bolt ever came off (at 117K).

I used a 'home made' J tool. Flat stock drilled for the two thread holes in the balancer with a larger hole drilled in the center to get the socket through. I put a breaker bar and socket on the hub bolt. I put on my leather work gloves (the flat stock was uncomfortable to hold).

Would break loose at first holding the J-tool in one hand and the breaker bar in the other. I then put my floor jack handle over the breaker bar for extra leverage and I was able to loosen the bolt using the extra leverage of the breaker bar.
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Postby dvdcts » Sat Mar 06, 2010 8:40 pm

ssmokn your method is similar to what I've done before. But my woodruff key is broken so there is nothing for the harmonic balancer to hold the crank still with.
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Postby ssmokn » Sat Mar 06, 2010 9:49 pm

If you are bolting flatstock to the balancer what would the wooddruff key do?

The flatstock holds the balancer and the wrench loosens the bolt.

Maybe I'm missing something.
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Postby dvdcts » Sat Mar 06, 2010 11:45 pm

I'm holding the balancer still.The bolt goes thru the harmonic balancer into the crank.The rear of the balancer is held inline to the crank by the key without the key the crank just spins the engine over.
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Postby shooter » Sat Mar 06, 2010 11:54 pm

You haven't done the impact gun yet, have you?
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Postby dvdcts » Sat Mar 06, 2010 11:59 pm

No it will be tomorrow buddy couldn't make it tonite.
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Postby trprluvr » Sun Mar 07, 2010 8:36 pm

If u end up havin to use the starter be very careful !!! Someone can get seriously injured!! I sure don't understand why they made that bolt so difficult to break loose!
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Postby dvdcts » Tue Mar 09, 2010 8:02 pm

OK, it's off but we broke a Craftsman 1/2 impact wrench and a Mac one wouldn't budge it either. I had to use the starter and lay the breaker bar on the frame.

Funny thing is it looks new not all rusted up as I expected.

The key was not broken but worn very badly it had layed over in the groove! It may not have been the right one or correct size.


Thanx to all who helped!!!!!!!
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Postby shooter » Tue Mar 09, 2010 8:22 pm

Them starters are mighty torquey. :shock: Glad to see you got it.
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Postby onetouch » Wed Mar 10, 2010 4:20 am

I've never had any issues with the "bump" method when they're stuck on there really good.

Position the breaker properly and just remember a little bump will do ya.

Of course it's not a good idea to have some fool sticking his face down there keeping track of progress.

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Postby trprluvr » Wed Mar 10, 2010 11:24 pm

Exactly what size it that bolt anyway ? I was wanting to turn my engine by hand and just kept trying different ones. If I recall correctly I ended up using a 15/16th . Do yall what size metric it is??? Imma write it in my manual!
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Postby dvdcts » Thu Mar 11, 2010 8:05 pm

It's a 24mm deepwell works well without extension.

Now where the heck can I find a woodruff key to fit? The machine shop doesn't have any even close to the right size!
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Postby shooter » Thu Mar 11, 2010 8:22 pm

Seems like they could make one lickitysplit. How about a Honda dealer? Salvage yard?
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Postby Andrea » Fri Mar 12, 2010 12:45 pm

:( :( Just a word of caution, on the newer model Rodeo's (04 for sure) the starter will stay engaged (on) till the engine starts or you physically turn the key off. So if you just bump the switch the starter will keep turning till you stitch it off. :D :D Andie
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Postby trprluvr » Fri Mar 12, 2010 2:50 pm

Tx Dave :) Got it wrote in my manual !
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Postby JLEMOND » Fri Mar 12, 2010 11:26 pm

Andrea wrote::( :( Just a word of caution, on the newer model Rodeo's (04 for sure) the starter will stay engaged (on) till the engine starts or you physically turn the key off. So if you just bump the switch the starter will keep turning till you stitch it off. :D :D Andie


LOL LOL ALL THE RODEOS WILL DO THAT AFTER 98 MODEL, KINDA CRAZY CAUSE THE TROOPERS WONT DO IT , IT IS KINDA SPOOKY , THE WAY IT WORKS BUT IT WILL ACTUALLY STOP THE STARTER AFTER THE ENG STARTS, BUT IF YOU GET IN AND FLOOR THE ACCEL PEDAL, TURN THE KEY TO START YOU CAN ACTUALLY GET OUT OF THE CAR AND THE STARTER WILL CONTINUE TO CRANK THE ENG UN TILL IT STARTS

IT IS FOR AN AUTOMATIC CLEAR FLOOD MODE IN CASE THE ENG HAS GOT FLOODED BY EXCESS FUEL, , JERRY
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Postby Andrea » Sat Mar 13, 2010 10:00 am

:D :D Thanks for the infor Jerry (my Hero). I was confused, a normal state for me, on the reason it did stay on. I know it can be quiet disconcerting the first time it happems, possiblely even dangerous for someone that that know about it, and harmful to your engine in a case like this one. But its always great to know the reasons for things. Thanks again! :D :D Andie
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