FWIW, I ended up with a cracked Warped drive prop hub on my Kolb, I believe
from going over the recommended torque numbers just a snitch. This can lead to
real trouble and I was lucky to find it. Warp warranty replaced the hub even
tho I told them it was probably my fault. A picture at
http://mae.ucdavis.edu/~ransom/BensAlbu ... ng99a.html if interested.
-Ben 'not quite a Rebel owner' Ransom
On 12/5/02 1:54 PM,
WALTER.KLATT@SHAW.CA wrote to MURPHY-REBEL:
-> OK, thanks. I remember talking to the Warp Drive guy a
-> long time ago about that. He wanted the smaller 1/4
-> inch ones torqued to 120 inch pounds, which too, was a
-> way more than normal. His reasoning was that the AN
-> bolts could handle that much, and it was better too
-> tight than too loose. So that's what I did.
->
-> Walter
->
-> > -----Original Message-----
-> > From:
mike.davis@dcsol.com
-> > [mailto:
mike.davis@dcsol.com]On Behalf Of
-> > Wayne G. O'Shea
-> > Sent: Wednesday, December 04, 2002 7:32 PM
-> > To:
murphy-rebel@dcsol.com
-> > Subject: Re: Prop bolt torque?
-> >
-> >
-> > Sounds right, 30's way toooo much on a 3/8
-> > fine thread bolt! Around
-> > 210in-lbs is usually spelled out as a
-> > maximum on a 3/8 NUT, which is only 18
-> > ft-lbs. The extra 5 to 7ft-lbs they
-> > recommend is to make up for the friction
-> > of the bolt shank on the prop holes I would
-> > imagine. I use about 25 ft-lbs
-> > on 3/8 bolts and 40 to 42 ft-lbs on 7/16
-> > ones (haven't lost a prop or ever
-> > had a bolt loosen YET!).
-> >
-> > Cheers,
-> > Wayne
-> >
-> > ----- Original Message -----
-> > From: "Walter Klatt" <
walter.klatt@shaw.ca>
-> > To: <
murphy-rebel@dcsol.com>
-> > Sent: Wednesday, December 04, 2002 10:08 PM
-> > Subject: Prop bolt torque?
-> >
-> >
-> > > Just wondering what people are using for
-> > torque values
-> > > on their Sensenich 2 blade metal props with the 3/8
-> > > prop bolts. On their web site it recommends 23 - 25
-> > > foot pounds. I was using more than that
-> > with my Warp
-> > > Drive at 30 foot pounds so just wanted to see what
-> > > others were doing.
-> > >
-> > > Walter
-> > >
-> > >
-> > >
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