Home » Public Forums » GMCnet » Harmonic Balancer Nut
| Harmonic Balancer Nut [message #89452] |
Mon, 21 June 2010 20:50  |
Chr$
Messages: 2690
Registered: January 2004
Location: Scottsdale, AZ
Karma: 1
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Any of you engine re builder types here make a tool to lock the harmonic balancer to break the bolt free? I am either going to wrap the sucker a few rounds with a ratchet strap and lock to the frame rail or make a bar with two holes and a clearance notch to lock the crank against the ground or frame rail so I can break the sucker loose with an impact wrench or a cheeter bar.
On Hasbeen's insistence while we were at the car show sat night, I have decided to change the noodle that is my timing chain. was nice and tight on the fuel pump side, but a reverse turn on the crank shows that it is as loose as a necklace on the down side.
Picked up a nice gasket set for the front cover which includes all the gaskets and a nice little tube of rtv, shaft seal, and repair sleeve.
Any suggestions?
-Chr$: Perpetual SmartAss
Scottsdale, AZ
77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"
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| Re: Harmonic Balancer Nut [message #89454 is a reply to message #89452] |
Mon, 21 June 2010 20:59  |
C Boyd
Messages: 2629
Registered: April 2006
Karma: 18
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| Chr$ wrote on Mon, 21 June 2010 21:50 |
Any of you engine re builder types here make a tool to lock the harmonic balancer to break the bolt free? I am either going to wrap the sucker a few rounds with a ratchet strap and lock to the frame rail or make a bar with two holes and a clearance notch to lock the crank against the ground or frame rail so I can break the sucker loose with an impact wrench or a cheeter bar.
On Hasbeen's insistence while we were at the car show sat night, I have decided to change the noodle that is my timing chain. was nice and tight on the fuel pump side, but a reverse turn on the crank shows that it is as loose as a necklace on the down side.
Picked up a nice gasket set for the front cover which includes all the gaskets and a nice little tube of rtv, shaft seal, and repair sleeve.
Any suggestions?
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Sir: maybe put 2 longer bolts in the pulley holes and use a flat bar between them to hold. Usually short bursts from a 1/2" impact gun with a 1/2" air line will break it loose.
Good Luck....
C. Boyd
76 Crestmont
East Tennessee
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| Re: [GMCnet] Harmonic Balancer Nut [message #89461 is a reply to message #89452] |
Mon, 21 June 2010 21:32 |
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ljdavick
Messages: 3548
Registered: March 2007
Location: Fremont, CA
Karma: -3
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Senior Member |
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A friend of mine puts a breaker bar on the nut with the end resting on
the ground and then bumps the starter. I've never tried it myself but
it might be worth a try.
Ljdavick at comcast.net
On Jun 21, 2010, at 6:50 PM, Chris Choffat <cchoffataz@yahoo.com> wrote:
>
>
> Any of you engine re builder types here make a tool to lock the
> harmonic balancer to break the bolt free? I am either going to wrap
> the sucker a few rounds with a ratchet strap and lock to the frame
> rail or make a bar with two holes and a clearance notch to lock the
> crank against the ground or frame rail so I can break the sucker
> loose with an impact wrench or a cheeter bar.
>
> On Hasbeen's insistence while we were at the car show sat night, I
> have decided to change the noodle that is my timing chain. was nice
> and tight on the fuel pump side, but a reverse turn on the crank
> shows that it is as loose as a necklace on the down side.
>
> Picked up a nice gasket set for the front cover which includes all
> the gaskets and a nice little tube of rtv, shaft seal, and repair
> sleeve.
>
> Any suggestions?
> --
> -Chr$: Perpetual SmartAss
> 77 Ex-Kingsley 455, Power Drive, 3:21 FD, Quadra bag. The
> Engineer's Motorhome
> Scottsdale, AZ
>
> Photosite: Chrisc "It has Begun"
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
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| Re: [GMCnet] Harmonic Balancer Nut [message #89466 is a reply to message #89460] |
Mon, 21 June 2010 22:15 |
Chr$
Messages: 2690
Registered: January 2004
Location: Scottsdale, AZ
Karma: 1
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Senior Member |
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Dave, that is exactly the tool I plan to make!!!
As for bumping the starter with the breaker bar on the ground, I have read about this, but I am leery to do this. anyone else here try this? I have read all sorts of things like filling a cyl with oil or rope (!!) to lock the engine. No way I am putting something in a cyl to do this.
My Craftsman Impact wrench is a pile-o-crap. Ran it for a while and no dice.
| Dave Motorhome wrote on Mon, 21 June 2010 19:28 |
I was going to do this last week. But after investigating ,mine was
ok.However in doing research I was going to fab something like this to
help budge/hold the bolt:
also Mr Bramlett told me the a few hits of the air gun should release it.
good luck!
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29192&title=timing-chain-r-2fr&cat=5172
David Paliotta
75 Glenbrook
Broken Arrow, OK
http://75glenbrook.googlepages.com
>> Any of you engine re builder types here make a tool to lock the harmonic balancer to break the bolt free? I am either going to wrap the sucker a few rounds with a ratchet strap and lock to the frame rail or make a bar with two holes and a clearance notch to lock the crank against the ground or frame rail so I can break the sucker loose with an impact wrench or a cheeter bar.
--
/
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-Chr$: Perpetual SmartAss
Scottsdale, AZ
77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"
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| Re: [GMCnet] Harmonic Balancer Nut [message #89498 is a reply to message #89460] |
Tue, 22 June 2010 09:26 |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma: 13
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Senior Member |
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Chris,
When I did my timing chain job I did pretty much exactly what Dave did. If I remember correctly, I used a piece of 3/16" X 2" steel strap, ground a relief in it for the center of the hub, and drilled two holes that matched the pulley mounting holes. It worked well without putting any undue strain on the crankshaft snout. I used the same 'tool' to torque it back down during assembly.
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
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| Re: [GMCnet] Harmonic Balancer Nut [message #89535 is a reply to message #89518] |
Tue, 22 June 2010 15:50 |
Chr$
Messages: 2690
Registered: January 2004
Location: Scottsdale, AZ
Karma: 1
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Senior Member |
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Which? bump the starter or jam the ring gear? I hate to put anything on the ring gear unless I have to. That means I have to pull the starter too!!!!!
Gahh!!!
I already rebuilt the Power steering pump just because I had to take it off!!!!!
| Steven Ferguson wrote on Tue, 22 June 2010 11:11 |
Your way is my way Matt.
On Tue, Jun 22, 2010 at 6:48 AM, Matt Colie <mcolie@chartermi.net> wrote:
>
>
> I like the starter motor trick, those guys have a lot of grunt.
>
> If you are afraid to try that, you might take the starter off and jam the ring gear with a prybar. We did that a lot in the set up shop, but there was no vehicle in the way. This works for tightening - too. Tough sometimes to know if you made torque with the airwrench.
>
> Matt
> --
> Matt & Mary Colie
> '73 Glacier 23 Chaumiere (say show-me-air)
> SE Michigan - DTW 3.2/4R
> _______________________________________________
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--
Steve Ferguson
'76 EII
Sierra Vista, AZ
Urethane bushing source
www.bdub.net/ferguson/
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-Chr$: Perpetual SmartAss
Scottsdale, AZ
77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"
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| Re: [GMCnet] Harmonic Balancer Nut [message #89547 is a reply to message #89535] |
Tue, 22 June 2010 16:14 |
Steven Ferguson
Messages: 3447
Registered: May 2006
Karma: 0
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Senior Member |
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Jam the ring gear. Maybe you can get at it through an access hole in
the bell housing.
An impact would work best though.
On Tue, Jun 22, 2010 at 1:50 PM, Chris Choffat <cchoffataz@yahoo.com> wrote:
>
>
> Which? bump the starter or jam the ring gear? I hate to put anything on the ring gear unless I have to. That means I have to pull the starter too!!!!!
>
> Gahh!!!
>
> I already rebuilt the Power steering pump just because I had to take it off!!!!!
>
> Steven Ferguson wrote on Tue, 22 June 2010 11:11
>> Your way is my way Matt.
>>
>> On Tue, Jun 22, 2010 at 6:48 AM, Matt Colie <mcolie@chartermi.net> wrote:
>> >
>> >
>> > I like the starter motor trick, those guys have a lot of grunt.
>> >
>> > If you are afraid to try that, you might take the starter off and jam the ring gear with a prybar. We did that a lot in the set up shop, but there was no vehicle in the way. This works for tightening - too. Tough sometimes to know if you made torque with the airwrench.
>> >
>> > Matt
>> > --
>> > Matt & Mary Colie
>> > '73 Glacier 23 Chaumiere (say show-me-air)
>> > SE Michigan - DTW 3.2/4R
>> > _______________________________________________
>> > GMCnet mailing list
>> > List Information and Subscription Options:
>> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>> >
>>
>>
>>
>> --
>> Steve Ferguson
>> '76 EII
>> Sierra Vista, AZ
>> Urethane bushing source
>> www.bdub.net/ferguson/
>> _______________________________________________
>> GMCnet mailing list
>> List Information and Subscription Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
>
> --
> -Chr$: Perpetual SmartAss
> 77 Ex-Kingsley 455, Power Drive, 3:21 FD, Quadra bag. The Engineer's Motorhome
> Scottsdale, AZ
>
> Photosite: Chrisc "It has Begun"
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Steve Ferguson
'76 EII
Sierra Vista, AZ
Urethane bushing source
www.bdub.net/ferguson/
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| Re: [GMCnet] Harmonic Balancer Nut [message #89553 is a reply to message #89547] |
Tue, 22 June 2010 17:10 |
Chr$
Messages: 2690
Registered: January 2004
Location: Scottsdale, AZ
Karma: 1
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Senior Member |
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Yeah, actually a gearhead who works for us uses a penny. Jam it between the starter and the flexplate. will not damage anything but the penny. I think I'll try that. I can get to that easily.
-Chr$: Perpetual SmartAss
Scottsdale, AZ
77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"
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| Re: Harmonic Balancer Nut [message #89583 is a reply to message #89452] |
Tue, 22 June 2010 23:40 |
Luvn737s
Messages: 1106
Registered: June 2007
Karma: 2
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Senior Member |
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Don't strip the hole that the bolt goes into. Helicoiling such a thing is no small task.
Randy
1973 26' Painted Desert
Ahwatukee (Phoenix) AZ
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| Re: Harmonic Balancer Nut [message #89595 is a reply to message #89579] |
Wed, 23 June 2010 07:53 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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| Chr$ wrote on Tue, 22 June 2010 22:24 |
Got it. Not enough access at the access hole to get a penny in there. So I jammed the breaker bar against my floor jack, and jacked it a tad to make it tight. Bumped and broke free on the third try. Balancer came off nicely with a puller. I will replace this thing too, as the rubber is cracked, and, well, since I'm there... 
$72 a good price for a harmonic balancer?
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Yes. I paid something in the $80 to $90 range when I bought a GM one for Roger Black several years ago. Retail was around $125.
Ken B.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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