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Date: Sun, 24 Feb 2008 07:29:47 -0800 (PST)
From: James Maher <delta11xd@att.net>
Subject: Re: [FlyRotary] Re: Rebuild kit
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
In-Reply-To: <list-2750573@logan.com>
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Ernest,
  Just wanted to make sure that you understood what I meant by installing the oil pump
  lock washer the correct way.
  On the lock washer there is a tab that protrudes into the center hole which is offset to one side.
  When mine failed I found that the washer was installed with the center tab facing the nut
  instead of facing the pump. This tab is supposed to fit in the keyway of the pump shaft facing the pump not the nut. Then the washer is bent over the flat of the nut after torquing.

  I'm curious what materials and process you used to construct your "composite" oil pan?
  Care to share with us?
   
  Jim
Ernest Christley <echristley@nc.rr.com> wrote:
  James Maher wrote:
> Ernest,
> While you have the oil pump drive exposed it would be a good idea to assure
> that the nut that holds the drive sprocket on the pump has the locking washer
> installed properly.
> Mine did not, and it only took about 8 hours of run time for the sprocket to fall off
> and chew a hole in the cover.
> Jim
> 
I did that tonight, Jim. I combined parts from another 6-port to get
the tolerances well under the spec. Picked the best washer and assured
that everything is as tight as possible. Here's what it is looking like
so far. I've scaled each of these down to fit in the email limit, but
larger versions are on my website (which I just got up again).


-- 

http://www.ronpaultimeline.com



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<DIV>Ernest,</DIV>  <DIV>Just wanted to make sure that you understood what I meant by installing the oil pump</DIV>  <DIV>lock washer the correct way.</DIV>  <DIV>On the lock washer there is a tab that protrudes&nbsp;into the center hole which is offset to one side.</DIV>  <DIV>When mine failed I found that the washer was installed with the center tab facing the nut</DIV>  <DIV>instead of facing the pump. This tab is supposed to fit in the keyway of the pump shaft facing the pump not the nut. Then the washer is bent over the flat of the nut after torquing.<BR></DIV>  <DIV>I'm curious what materials and process you used to construct your "composite" oil pan?</DIV>  <DIV>Care to share with us?</DIV>  <DIV>&nbsp;</DIV>  <DIV>Jim<BR><B><I>Ernest Christley &lt;echristley@nc.rr.com&gt;</I></B> wrote:</DIV>  <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">James Maher wrote:<BR>&gt; Ernest,<BR>&gt; While you have the oil pump
 drive exposed it would be a good idea to assure<BR>&gt; that the nut that holds the drive sprocket on the pump has the locking washer<BR>&gt; installed properly.<BR>&gt; Mine did not, and it only took about 8 hours of run time for the sprocket to fall off<BR>&gt; and chew a hole in the cover.<BR>&gt; Jim<BR>&gt; <BR>I did that tonight, Jim. I combined parts from another 6-port to get<BR>the tolerances well under the spec. Picked the best washer and assured<BR>that everything is as tight as possible. Here's what it is looking like<BR>so far. I've scaled each of these down to fit in the email limit, but<BR>larger versions are on my website (which I just got up again).<BR><BR><BR>-- <BR><BR>http://www.ronpaultimeline.com<BR><BR><BR><BR>--<BR>Homepage: http://www.flyrotary.com/<BR>Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html<BR></BLOCKQUOTE><BR>
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