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Ausdingo
Samba Member
Joined: May 23, 2017
Posts: 151
Location: San Bruno
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 Posted: Tue Aug 21, 2018 11:39 am Post subject: Alternator torquing fan nut |
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Hi All
Just put on a alternator conversion on my 70 bus. Would like to torque rear fan nut to 45 pounds, but how do I hold the front pulley nut to stop it from spinning. I thought of a wrench, but that would only get to tight, and will need to un do again. Any help is appreciated.
Thank you |
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busdaddy
Samba Member
Joined: February 12, 2004
Posts: 51131
Location: Surrey B.C. Canada, but thinking of Ukraine
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| Posted: Tue Aug 21, 2018 12:03 pm Post subject: Re: Alternator torquing fan nut |
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A strap type oil filter wrench works good for that.
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kreemoweet
Samba Member
Joined: March 13, 2008
Posts: 3898
Location: Seattle, WA
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| Posted: Tue Aug 21, 2018 12:44 pm Post subject: Re: Alternator torquing fan nut |
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Holding the pulley nut will NOT get it too tight. It will be tightened to exactly the same torque as the fan nut, which
is what is specified.
If you don't care for doing it that way, you can take off the rear pulley half and hold the shaft via a wrench on the flats of
the front pulley half hub.
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Ausdingo
Samba Member
Joined: May 23, 2017
Posts: 151
Location: San Bruno
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| Posted: Tue Aug 21, 2018 7:49 pm Post subject: Re: Alternator torquing fan nut |
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Thanks both if you. Really appreciate your help.
Regards |
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aeromech
Samba Member
Joined: January 24, 2006
Posts: 16961
Location: San Diego, California
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| Posted: Tue Aug 21, 2018 9:10 pm Post subject: Re: Alternator torquing fan nut |
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I just use an impact
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ivwshane
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Joined: May 19, 2011
Posts: 1920
Location: Sacramento ca
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| Posted: Tue Aug 21, 2018 9:57 pm Post subject: Re: Alternator torquing fan nut |
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| aeromech wrote: |
| I just use an impact |
I used an impact gun to get it off but I figured I would need to tighten it with the correct torque settings to put it back on. On you saying that is not the case?
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Spike0180
Samba Member
Joined: June 06, 2015
Posts: 2269
Location: Detroit, Michigan
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| Posted: Wed Aug 22, 2018 5:00 am Post subject: Re: Alternator torquing fan nut |
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| aeromech wrote: |
| I just use an impact |
x2
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 50338
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| Posted: Wed Aug 22, 2018 5:38 am Post subject: Re: Alternator torquing fan nut |
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If doing it in the car, you can lock the nut of the fan with a socket and bar and then torque the nut on the pulley end, thereby getting the correct torque on both nuts.
You can also just hold the shaft by using a large flat blade screw driver in the cutouts in the forward belt pulley half, jamming it against the head of one of the through bolts on the alternator, as per the Bentley. |
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