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Date: Mon, 22 Mar 2010 10:45:41 -0400
From: Ernest Christley <echristley@nc.rr.com>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: Fwd: Question on RD2-C
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WRJJRS@aol.com wrote:
> In a message dated 3/21/2010 10:04:09 AM Pacific Standard Time,=20
> bbradburry@bellsouth.net writes:
>
>     I agree that steel rivets would be better than the bolts.  I am
>     not certain of the difficulty in squeezing them, but they would
>     provide a =E2=80=9Cpress fit=E2=80=9D where the bolts would not.  T=
he strength
>     would be similar in shear which is where most of the forces would
>     be.  They would also be a lighter, important in a rotating mass. =20
>     The idea of putting something like =E2=80=9CProseal=E2=80=9D in bef=
ore assembly
>     makes sense as well.  The combination should ensure that shear
>     forces would never move it.  In the current situation it must be
>     moving else the rivets could not loosen???
>
>     =20
>
>     Bill B
>
> Ok guys the obvious solution here is to size the holes. Most bolt=20
> shanks wont vary more than a few thousanths. The fix is to drill the=20
> holes out undersize and ream than to fit with an adjustable reamer
Steel bolts into aluminum plate to replace rivets?  Make it a drive=20
fit.  You won't be taking the bolts out.  Heat the aluminum and freeze=20
the bolts then drive them in with a rubber mallet.  There won't be ANY=20
play then.