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08-19-2007, 08:20 PM
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#1 |
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Registered User
Join Date: Feb 2006
Location: Gilbert, Az
Posts: 180
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Harmonic balancer bolt removal
I went to the FAQ section and typed in Harmonic as the search word and nothing came up. Any way here is my situation. I pulled the motor out of my truck and put the new on in. The new one is all bolted up and the old one is on a stand. I don't know how to remove the harmonic balancer bolt to get my pulleys off the old one. Can anyone offer any suggestions. I don't have acces to air at this time. Also there is no flywheel on the old one.
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08-19-2007, 08:25 PM
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#2 |
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ran out of money
Join Date: Apr 2003
Location: northern, NJ
Posts: 925
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Re: Harmonic balancer bolt removal
if your talking about the center one that goes into the crank. without air or a flexplate/flywheel to hold onto. put a ratchet on it and smack it sharply with a hammer or something hard. the sudden jerk(like an impact gun would cause) can sometimes break it lose. or you can try to put some cord into a spark plug hole and have the engine turn around untill its locked and then loosen the bolt
hope that helps, just ideas 71rat
__________________
Modify everything, leave nothing alone!~  
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08-19-2007, 08:49 PM
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#3 |
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Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: Harmonic balancer bolt removal
counterclockwise works best
__________________
71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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08-19-2007, 09:35 PM
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#4 |
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Registered User
Join Date: Feb 2007
Location: Westfield, Tioga County) Pennsylvania
Posts: 113
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Re: Harmonic balancer bolt removal
Seeing you have the engine mounted on a stand, try threading two bolts in the crankshaft flange where the flexplate would bolt on and stick a prybar through where the stand head mounts to the engine block and engages with the bolts to keep it from turning. Good luck....
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Ironhead Mike '68 Panel 402BB '84 Shortbox 4X4 '85 Blazer '97 Silverado Ext. Cab |
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08-19-2007, 09:50 PM
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#5 |
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Sierra Grande Club
Join Date: Jan 2007
Location: New Mexico USA
Posts: 2,433
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Re: Harmonic balancer bolt removal
IIRC you don’t need to remove the harmonic balance to get the pulleys off. If this is a new motor you might as well put a new HB on it.
s/t You are correct---it also uses the center bolt. 
__________________
1971 GMC Sierra Grande, 1/2 ton short wide, original 4 bolt 010 020 block & heads. (matching #'s). 383 stroker, SMI q jet 750 cfm, Lunati Voodoo 60102 cam, Scorpion roller rockers, Spin Tech pro street mufflers with X pipe. 
Last edited by Sport/Truck; 08-19-2007 at 09:56 PM. Reason: I posted then went to look at my pulleys…I was incorrect. |
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08-19-2007, 11:45 PM
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#6 |
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Registered User
Join Date: Feb 2006
Location: Gilbert, Az
Posts: 180
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Re: Harmonic balancer bolt removal
Thanks guys for the responses...
Cdowns are you serious or just mess'n around? |
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08-19-2007, 11:56 PM
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#7 |
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Designated A-hole!
Join Date: Mar 2003
Location: South Mississippi
Posts: 36,448
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Re: Harmonic balancer bolt removal
Cdowns is always serious.
 
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"If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck" |
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08-20-2007, 12:00 AM
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#8 |
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Registered User
Join Date: Feb 2006
Location: Gilbert, Az
Posts: 180
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Re: Harmonic balancer bolt removal
So then it is a normal thread and not a left handed thread right??? And does the bolt need to be replaced once removed or can I use it again?
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08-20-2007, 12:45 AM
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#9 |
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Designated A-hole!
Join Date: Mar 2003
Location: South Mississippi
Posts: 36,448
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Re: Harmonic balancer bolt removal
It's normal right handed threaded bolt and can be used again. The harmonic balancer bolt is a belt and suspenders type deal. The tight fit of the balancer on the crank should hold it on (I think early sbc's didn't even have a bolt), but the bolt is added insurance.
__________________
"If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck" |
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08-20-2007, 01:00 AM
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#10 |
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Registered User
Join Date: Feb 2006
Location: Gilbert, Az
Posts: 180
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Re: Harmonic balancer bolt removal
Cool thanks man
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08-20-2007, 01:22 AM
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#11 |
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Account Suspended
Join Date: Jul 2006
Location: DFW
Posts: 1,427
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Re: Harmonic balancer bolt removal
The "are you serious" question reminds me of the time someone asked a question about how to remove the shifter er, peg on a Harley. I replied lefty loosey, righty tighty. The guy came back all huffy but a few others replied that the answer was brief, but accurate. Funny...
Usually V8 engines don't have strange stuff like left hand threads because 8 cylinders makes things pretty smooth so there's no need. V-twins have them hiding in strange places and you start to wonder after the 6 foot "extension" doesn't help... Last edited by 72lb4x4; 08-20-2007 at 01:26 AM. |
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