Pietenpol-List Digest Archive

Wed 10/08/03


Total Messages Posted: 3



Today's Message Index:
----------------------
 
     1. 04:53 AM - Re: shoulder harness (Gene Rambo)
     2. 05:21 AM - Re: Corvair engine cleaning (Ken Rickards)
     3. 10:03 PM - Re: shoulder harness (Rcaprd@aol.com)
 
 
 


Message 1


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    Time: 04:53:35 AM PST US
    From: "Gene Rambo" <rambog@erols.com>
    Subject: Re: shoulder harness
    --> Pietenpol-List message posted by: "Gene Rambo" <rambog@erols.com> I'm not so sure that tieing the front harness to the cabanes is such a no-brainer. In a crash, the wing is almost certainly to take a hit. If either wingtip hits something and shoves the wing aft, and if the front shoulder harness is attached to the top of the cabanes, you are going to strain the front passenger through the belt. I think keeping the belts tied to the fuselage (not that I know HOW to do that) is the proper thing to do. Gene do not archive ----- Original Message ----- From: "Douwe Blumberg" <douweblumberg@earthlink.net> Subject: Pietenpol-List: shoulder harness > --> Pietenpol-List message posted by: "Douwe Blumberg" <douweblumberg@earthlink.net> > > > I want to put a shoulder harness in my piet. The crossmember behind the > pilot is low and I've heard that there are fears of spinal compression > injuries in case of impact... which kind of makes sense. I'm thinking > of reinforcing the turtle deck former behind the pilot and running the > harness out of the very top of that and then running a cable back in the > fuselage to some solid cluster or even to the tailskid/keel area. > Passenger harness can obviously go to the cabanes so that's easy. What > have you guys done or seen that works. My problem also is that I > purchased a project and the fuselage is already covered but the guy made > no provisions for seat belts of any kind so I've got to go in and > retrofit something. > > thoughts?? > > Douwe Blumberg > douweblumberg@earthlink.net > > <HTML><HEAD> > <META content"MSHTML 6.00.2800.1170" nameGENERATOR> > <STYLE></STYLE> > </HEAD> > <BODY bgColor#ffffff> > <DIV><FONT faceArial size2>I want to put a shoulder harness in my > piet.&nbsp; > The crossmember behind the pilot is low and I've heard that there are > fears of > spinal compression injuries in case of impact... which kind of makes > sense.&nbsp; I'm thinking of reinforcing the turtle deck former behind > the pilot > and running the harness out of the very top of that and then running a > cable > back in the fuselage to some solid cluster or even to the tailskid/keel > area.&nbsp; Passenger harness can obviously go to the cabanes so that's > easy.&nbsp; What have you guys done or seen that works.&nbsp; My problem > also is > that I purchased a project and the fuselage is already covered but the > guy made > no provisions for seat belts of any kind so I've got to go in and > retrofit > something.</FONT></DIV> > <DIV><FONT faceArial size2></FONT>&nbsp;</DIV> > <DIV><FONT faceArial size2>thoughts??</FONT></DIV> > <DIV><FONT faceArial size2></FONT>&nbsp;</DIV> > <DIV><FONT faceArial size2>Douwe Blumberg</FONT></DIV> > <DIV><FONT faceArial size2><A > href"mailto:douweblumberg@earthlink.net">douweblumberg@earthlink.net</= > A> > </FONT></DIV></BODY></HTML> > >


    Message 2


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    Time: 05:21:19 AM PST US
    From: "Ken Rickards" <pietbuilder@cogeco.ca>
    Subject: Re: Corvair engine cleaning
    --> Pietenpol-List message posted by: "Ken Rickards" <pietbuilder@cogeco.ca> Thanks DJ. Most helpful. I feel inspired enough to make a start on my engine this weekend. Ken GN1 2992 Canada ----- Original Message ----- From: "DJ Vegh" <aircamper@imagedv.com> Subject: Re: Pietenpol-List: Corvair engine cleaning > --> Pietenpol-List message posted by: "DJ Vegh" <aircamper@imagedv.com> > > > Ken, > > When I first got my heads they were VERY dirty. The man who sold it to > me told me it had been sitting for almost 20 years in a barn somwhere in > the Pacific Northwest. It was caked on with crud, oil, and even found > a couple rodent nests under the baffling. > > The first step in getting it clean was to pressure wahs it at the local > car wash. That got the big chunks off. Then I bought about 4 cans of > Easy Off oven cleaner. This stuff is awesome! Youhave to be very > careful when you use it as it will attack aluminum. What I did was > spray it on fairly generously and then let it sit for about 5 minutes. > Then pressure wash it off. Do that about 4 or 5 times and the case and > heads look silver almost like new. > > The next step in getting them really really clean is walnut shell blast > them. Using my blasting cabinet and medium AD6B walnut shell media > (which I got locally for $25 for a 50lb bag) I blasted them in every > nook and cranny. Took me about 2 hours of blasting to get them > perfectly clean. > > I did the same with the case. Under NO circumstance will you use glass > bead or sand media. You will ruin the case and heads. Walnuts are very > safe on aluminum.... althought you still must stay away from machined > and/or gasket areas. > > The final step was a 1" wire brush in my hand drill. I went over the > entire case and heads with it which gave them a slightly polished look. > > As you can see my heads are modified a la Pat Panzera & Mark Langford > with the carb flange routed off and then polished and then a 90 degree > intake pipe welded on. > > It pays to take the extra time to make your parts REALLY clean. > > DJ > ----- Original Message ----- > From: Ken Rickards > To: pietenpol-list@matronics.com > Subject: Re: Pietenpol-List: Corvair engine assembly! - pics > > > --> Pietenpol-List message posted by: "Ken Rickards" > <pietbuilder@cogeco.ca> > > DJ. > > How did you get your heads so clean? > > Ken > > GN1 2992 > > Canada > > > This email has been scanned for known viruses and made safe for viewing b= > y Half Price Hosting, a leading email and web hosting provider. For more > information on an anti-virus email solution, visit <http://www.halfpriceh= > osting.com/av.asp>.= > > > <HTML><HEAD> > <META content"MSHTML 6.00.2800.1106" nameGENERATOR> > <STYLE></STYLE> > </HEAD> > <BODY bgColor#ffffff> > <DIV><FONT faceArial size2>Ken,</FONT></DIV> > <DIV><FONT faceArial size2></FONT>&nbsp;</DIV> > <DIV><FONT faceArial size2>When I first got my heads they were > VERY > dirty.&nbsp; The man who sold it to me told me it had been sitting for > almost 20 > years in a barn somwhere in the Pacific Northwest.&nbsp;&nbsp; It was > caked on > with crud, oil, and &nbsp;even found a couple rodent nests under the > baffling.</FONT></DIV> > <DIV><FONT faceArial size2></FONT>&nbsp;</DIV> > <DIV><FONT faceArial size2>The first step in getting it clean was > to pressure > wahs it at the local car wash.&nbsp;&nbsp; That got the big chunks > off.&nbsp; > Then I bought about 4 cans of Easy Off oven cleaner.&nbsp; This stuff is > > awesome!&nbsp; Youhave to be very careful when you use it as it will > attack > aluminum.&nbsp; What I did was spray it on fairly generously and then > let it sit > for about 5 minutes.&nbsp; Then pressure wash it off.&nbsp; Do that > about 4 or 5 > times and the case and heads look silver almost like new. </FONT></DIV> > <DIV><FONT faceArial size2></FONT>&nbsp;</DIV> > <DIV><FONT faceArial size2>The next step in getting them really > really clean > is walnut shell blast them.&nbsp; Using my blasting cabinet and medium > AD6B > walnut shell media (which I got locally for $25 for a 50lb bag) I > blasted them > in every nook and cranny.&nbsp; Took me about 2 hours of blasting to get > them > perfectly clean.</FONT></DIV> > <DIV><FONT faceArial size2></FONT>&nbsp;</DIV> > <DIV><FONT faceArial size2>I did the same with the case.&nbsp; > Under NO > circumstance will you use glass bead or sand media.&nbsp; You will ruin > the case > and heads.&nbsp; Walnuts are very safe on aluminum.... althought you > still must > stay away from machined and/or gasket areas.</FONT></DIV> > <DIV><FONT faceArial size2></FONT>&nbsp;</DIV> > <DIV><FONT faceArial size2>The final step was a 1" wire brush in > my hand > drill.&nbsp; I went over the entire case and heads with it which gave > them a > slightly polished look.</FONT></DIV> > <DIV><FONT faceArial size2></FONT>&nbsp;</DIV> > <DIV><FONT faceArial size2>As you can see my heads are modified a > la Pat > Panzera &amp; Mark Langford with the carb flange routed off and then > polished > and then a 90 degree intake pipe welded on.</FONT></DIV> > <DIV><FONT faceArial size2></FONT>&nbsp;</DIV> > <DIV><FONT faceArial size2>It pays to take the extra time to make > your parts > REALLY clean.&nbsp; </FONT></DIV> > <DIV><FONT faceArial size2></FONT>&nbsp;</DIV> > <DIV><FONT faceArial size2>DJ</FONT></DIV> > <DIV>----- Original Message ----- </DIV> > <DIV style"FONT: 10pt arial"> > <DIV style"BACKGROUND: #e4e4e4; font-color: black"><B>From:</B> <A > titlepietbuilder@cogeco.ca href"mailto:pietbuilder@cogeco.ca">Ken > Rickards</A> > </DIV> > <DIV><B>To:</B> <A titlepietenpol-list@matronics.com > href"mailto:pietenpol-list@matronics.com">pietenpol-list@matronics.com= > </A> > </DIV> > <DIV><B>Sent:</B> Tuesday, October 07, 2003 12:28 PM</DIV> > <DIV><B>Subject:</B> Re: Pietenpol-List: Corvair engine assembly! - pics > > </DIV></DIV> > <DIV><BR></DIV>--&gt; Pietenpol-List message posted by: "Ken Rickards" > &lt;<A > href"mailto:pietbuilder@cogeco.ca">pietbuilder@cogeco.ca</A>&gt;<BR><B= > R>DJ.<BR><BR>How > did you get your heads so clean?<BR><BR>Ken<BR><BR>GN1 > 2992<BR><BR>Canada<BR> > > This email has been scanned for known viruses and made safe for viewing b= > y Half Price Hosting, a leading email and web hosting provider. For more > information on an anti-virus email solution, visit <http://www.halfpriceh= > osting.com/av.asp>.= > > > </BODY></HTML> > >


    Message 3


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    Time: 10:03:10 PM PST US
    From: Rcaprd@aol.com
    Subject: Re: shoulder harness
    --> Pietenpol-List message posted by: Rcaprd@aol.com In a message dated 10/7/03 7:34:47 PM Central Daylight Time, douweblumberg@earthlink.net writes: << I want to put a shoulder harness in my piet. The crossmember behind the pilot is low and I've heard that there are fears of spinal compression injuries in case of impact... which kind of makes sense. I'm thinking of reinforcing the turtle deck former behind the pilot and running the harness out of the very top of that and then running a cable back in the fuselage to some solid cluster or even to the tailskid/keel area. Passenger harness can obviously go to the cabanes so that's easy. What have you guys done or seen that works. My problem also is that I purchased a project and the fuselage is already covered but the guy made no provisions for seat belts of any kind so I've got to go in and retrofit something. thoughts?? >> Douwe, A design criteria of a shoulder harness is that it runs straight back from the shoulders of the occupant, to prevent spinal compression. I ran a 3/32" cable from an eye bolt with a large washer, through the tail post, to the fittings on the end of the shoulder harness. This put the harness above the turtle deck, so I built a head rest out of fiberglass, to enclose it. It's not quite straight back, but angled down just a few degrees. As for the passenger, Gene makes a good poing about the top of the cabane struts, but I don't see any other way to terminate them, and maintain the correct angle. I'm planning on terminating the passenger harness to the top of the cabane struts, unless someone has a better idea. Chuck G.




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