If you did not want to create glass covers for the holes until you are sure this will solve your problem, another alternative might to go to your local marine supply store ( Boat US or other ) and pick up a pair of plastic or stainless air vent scoops and put them on backwards to create the low pressure area you need. A couple of screws each and your ready for flight test. These come in various sizes and shapes and some are very close to the final shape you might want. Quick and cheap as well.
Randy Powell Wachapreague Va. randywpow...@verizon.net ----- Original Message ----- From: "Mark Langford" <n5...@knology.net> To: "KRnet" <kr...@mylist.net> Sent: Sunday, October 29, 2006 7:16 PM Subject: Re: KR> Oil Overheating issue Resolution > Dan Heath wrote: > >> Please look it over and let me know if you see any issues with it or if >> there is something that I might do to improve the ability for the vents >> to >> suck air through the oil cooler. > > It looks like you need something over the front of those 2" holes on the > cowling bottom to create a draft. You know, like when you put a lip on > the > bottom of the cowling to create a low pressure area to suck more air out > of > the cowling. Personally I'd stuff a 2" diameter chunk of foam in there, > round the front of it, hack the back off to create the "bluff", and glass > it > in place, finally scraping the foam out of there. I got some 2" round > foam > for my cowling "nostrils" that I got from Walmart that's perfect for that > job. It's in the hobby/craft area...in the form of a 16" diameter donut > used for making wreaths. I'll bet they have a bunch of them this time of > year, and they're only a few bucks. You need to shield the front of that > hole with a nice hemisperical shape, and the back of it needs to be > chopped > off into a bluff that'll create the suction... > > Mark Langford, Huntsville, Alabama > see KR2S project N56ML at http://home.hiwaay.net/~langford > email to N56ML "at" hiwaay.net > -------------------------------------------------------------- > > > ----- Original Message ----- > From: "Dan Heath" <da...@alltel.net> > To: <kr...@mylist.net> > Sent: Sunday, October 29, 2006 12:50 PM > Subject: KR> Oil Overheating issue Resolution > > >> I have placed some pics at this location on my web site: >> >> http://krbuilder.org/EngineTroubles/index.html >> >> Please look it over and let me know if you see any issues with it or if >> there is something that I might do to improve the ability for the vents >> to >> suck air through the oil cooler. >> >> Thanks in advance for your input. >> >> See N64KR at http://KRBuilder.org - Then click on the pics >> See you at the 2007 - KR Gathering >> There is a time for building and a time for FLYING and the time for >> Flying >> has begun. >> Daniel R. Heath - Lexington, SC >> _______________________________________ >> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp >> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net >> please see other KRnet info at http://www.krnet.org/info.html >> > > > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html >
