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mrwoolson(at)prodigy.net
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 Posted: Sat May 28, 2011 9:55 pm Post subject: Prop Bolt torque specs |
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Hi guys
I have a 582/gearbox C combo in a Loehle P-5151 and the propbolts
I'm using are 8mm-120mm 12.9 class Allen Head bolts and I can't seam to find specs. Does anyone out there think 20-25 foot pounds sound right? The bolt heads have been drilled for safety wired.
Somewhere I found Two different sets of numbers called out for Allen and Hex type heads.
Thanks
Mike
[quote][b]
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Roger Lee
Joined: 10 Jan 2006
Posts: 1464
Location: Tucson, Az.
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| Posted: Sun May 29, 2011 5:07 am Post subject: Re: Prop Bolt torque specs |
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What type of prop? Different prop setups have different torques.
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rickofudall
Joined: 19 Sep 2009
Posts: 1392
Location: Udall, KS, USA
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| Posted: Sun May 29, 2011 5:15 am Post subject: Prop Bolt torque specs |
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Prop torque is generally set by the prop maker. 20 to 25 ft lb. is too much for the bolt in question. By prop makers, as an example, Warp Drive is 175 in lb. (about 14.5 ft lb.) and Power Fin is 195 in lb. (about 16 ft lb.) if you have a wood prop it will likely be even less.
Rick Girard
On Sun, May 29, 2011 at 12:52 AM, Michael Woolson <mrwoolson(at)prodigy.net (mrwoolson(at)prodigy.net)> wrote:
| Quote: | Hi guys
I have a 582/gearbox C combo in a Loehle P-5151 and the propbolts
I'm using are 8mm-120mm 12.9 class Allen Head bolts and I can't seam to find specs. Does anyone out there think 20-25 foot pounds sound right? The bolt heads have been drilled for safety wired.
Somewhere I found Two different sets of numbers called out for Allen and Hex type heads.
Thanks
Mike
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mrwoolson(at)prodigy.net
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| Posted: Sun May 29, 2011 9:14 am Post subject: Prop Bolt torque specs |
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Stupid me, I forgot to mention Warp drive as the prop.
Mike
[quote][b]
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rickofudall
Joined: 19 Sep 2009
Posts: 1392
Location: Udall, KS, USA
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| Posted: Sun May 29, 2011 9:48 am Post subject: Prop Bolt torque specs |
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Per Warp Drive, 175 in. lb. on the 8mm bolts, 125 in. lb. on the AN-4's.
Rick Girard
On Sun, May 29, 2011 at 12:11 PM, Michael Woolson <mrwoolson(at)prodigy.net (mrwoolson(at)prodigy.net)> wrote:
| Quote: | Stupid me, I forgot to mention Warp drive as the prop.
Mike
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ist" target="_blank">http://www.matronics.com/Navigator?RotaxEngines-List
tp://forums.matronics.com
_blank">http://www.matronics.com/contribution
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Zulu Delta
Mk IIIC
Thanks, Homer GBYM
It isn't necessary to have relatives in Kansas City in order to be unhappy.
- Groucho Marx
[quote][b]
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mrwoolson(at)prodigy.net
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| Posted: Sun May 29, 2011 6:28 pm Post subject: Prop Bolt torque specs |
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| Quote: | A big thanks to all who responded.
Mike
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[quote][b]
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