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From: "Michael D. Callahan" <micallahan@worldnet.att.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
References: <list-1026674@logan.com>
Subject: Re: [FlyRotary] Machining help needed
Date: Wed, 29 Jun 2005 21:10:20 -0500
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You need a proper sized fluted reamer for that. The boring bar wil be far
too rough and you have to have a full through hole for  the adjustable
reamers. Drill and/or bore the hole about .015 undersize and ream it up from
there.
    If you were closer, I'd knock this right out for you.  Mike C.


----- Original Message ----- 
From: "Jerry Hey" <jerryhey@earthlink.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Wednesday, June 29, 2005 9:07 PM
Subject: [FlyRotary] Machining help needed


> I need to find someone to finish the bores on my injector bosses or
> tell me how to do it.   Final i.d.should be .540 to .545 in.    The
> bosses are .45 in high and are bored and reamed to .5312.  Material is
> 6061.   I tried using a boring bar but could not maintain the
> tolerances.  I bought adjustable hand reamers but they were not the
> right tool for the job.  I considered trying to sand the bore to the
> correct size using a flapper but have not tried it  yet.  Suggestions?
> Volunteers?     Jerry
>
>
>
> >>  Homepage:  http://www.flyrotary.com/
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