OK...copper it will be. On Tue, Dec 14, 2021, 5:58 AM Jeff Scott <jscott.pla...@gmx.com> wrote:
> It is an Experimental, so you can do as you think best; However, the > industry standard is as described by Randy Smith using a .040" orifice, and > connecting with 1/8" copper line with a loop in the line between the engine > and firewall to absorb the vibration. It's been successful through 100 > years of aviation on hundreds of thousands of planes. The loop is a > critical part of the installation to avoid cracking and failure. > > -Jeff Scott > Arkansas Ozarks. > > > > > > I enjoy the KR Group because it seems like there are several of you out > > there who know a whole lot more than me about KR's and airplanes in > > general. A true resource. Thanks. > > As to why I don't run copper tubing, it is because it seems much more > > likely to fail from vibration and fatigue. Plastic is more likely to fail > > from heat, age, and chafing. I am not too concerned about hot oil on my > > legs because I doubt if the tube will fail in the cockpit. > > I will check to see if I have a .040 restriction, and while I am at > it, > > I might as well replace the line (probably with plastic). And then I will > > fly with complete confidence for the rest of my life... I'm pretty old. > > > > Gary Sack N81JM > > > > On Mon, Dec 13, 2021, 6:47 PM Randall Smith via KRnet < > krnet@list.krnet.org> > > wrote: > > > > > I am not sure why you would even run a plastic line for your oil > pressure. > > > Run it in 1/8 copper and put one loop in it for vibration. Every > airplane I > > > have owned has had the same set up whether it was certified or > > > experimental. I also have always had a fitting with a .040 hole in it. > > > > > > Sent from my iPhone > > > > > > > On Dec 13, 2021, at 3:16 PM, Ed Janssen <ejanssen...@gmail.com> > wrote: > > > > > > > > Seems like Steve Bennett told me once that that happened to him once > > > while > > > > flying his KR-1 which made quite a mess and at a high enough rate > that he > > > > wanted to get on the ground asap. Some KR drivers have been known to > > > > replace plastic tubing annually to lower the risk of that happening. > > > Cheap > > > > precautions. > > > > > > > > Ed J. > > > > > > > >> On Mon, Dec 13, 2021 at 12:37 PM Gary Sack <garys...@gmail.com> > wrote: > > > >> > > > >> Does anyone know what happens if the plastic capillary tube sending > oil > > > >> pressure back to the cockpit breaks? Mine is old, but in good > > > condition. > > > >> It I loose oil pressure reading and make a bit of a mess, I will > chance > > > it. > > > >> If I lose 4 quarts of oil and seize the engine within a few > minutes, I > > > >> won't. > > > >> Gary Sack. N81 JM > > > >> ________________________________ > > > >> -Please see LIST RULES and KRnet info at > http://www.krnet.org/info.html > > > >> -Change list delivery options at > > > >> https://list.krnet.org/list/krnet.list.krnet.org/ Affinity List > Info > > > Board > > > >> -Search recent KRnet Archives at > > > >> https://list.krnet.org/empathy/list/krnet.list.krnet.org/ > > > >> -Search < > > > https://list.krnet.org/empathy/list/krnet.list.krnet.org/-Search> > > > >> John Bouyea's decades of archive at > > > >> https://www.mail-archive.com/krnet@list.krnet.org/ > > > >> > > > > ________________________________ > > > > -Please see LIST RULES and KRnet info at > http://www.krnet.org/info.html > > > > -Change list delivery options at > > > https://list.krnet.org/list/krnet.list.krnet.org/ Affinity List Info > Board > > > > -Search recent KRnet Archives at > > > https://list.krnet.org/empathy/list/krnet.list.krnet.org/ > > > > -Search John Bouyea's decades of archive at > > > https://www.mail-archive.com/krnet@list.krnet.org/ > > > ________________________________ > > > -Please see LIST RULES and KRnet info at > http://www.krnet.org/info.html > > > -Change list delivery options at > > > https://list.krnet.org/list/krnet.list.krnet.org/ Affinity List Info > Board > > > -Search recent KRnet Archives at > > > https://list.krnet.org/empathy/list/krnet.list.krnet.org/ > > > -Search < > https://list.krnet.org/empathy/list/krnet.list.krnet.org/-Search> > > > John Bouyea's decades of archive at > > > https://www.mail-archive.com/krnet@list.krnet.org/ > > ________________________________ > > -Please see LIST RULES and KRnet info at http://www.krnet.org/info.html > > -Change list delivery options at > https://list.krnet.org/list/krnet.list.krnet.org/ Affinity List Info Board > > -Search recent KRnet Archives at > https://list.krnet.org/empathy/list/krnet.list.krnet.org/ > > -Search John Bouyea's decades of archive at > https://www.mail-archive.com/krnet@list.krnet.org/ > ________________________________ > -Please see LIST RULES and KRnet info at http://www.krnet.org/info.html > -Change list delivery options at > https://list.krnet.org/list/krnet.list.krnet.org/ Affinity List Info Board > -Search recent KRnet Archives at > https://list.krnet.org/empathy/list/krnet.list.krnet.org/ > -Search <https://list.krnet.org/empathy/list/krnet.list.krnet.org/-Search> > John Bouyea's decades of archive at > https://www.mail-archive.com/krnet@list.krnet.org/ ________________________________ -Please see LIST RULES and KRnet info at http://www.krnet.org/info.html -Change list delivery options at https://list.krnet.org/list/krnet.list.krnet.org/ Affinity List Info Board -Search recent KRnet Archives at https://list.krnet.org/empathy/list/krnet.list.krnet.org/ -Search John Bouyea's decades of archive at https://www.mail-archive.com/krnet@list.krnet.org/
