KR> Back-up profile engine mount
hi, To install the engine mount on the firewall I have to install according drawing a L shaped .125 thickness. On the drawing I cant find the lengt of this L profile. Do I install it over the full lengt of the upper shelf? I think it is better to install 2 L shaped profiles so you connect the upper and the lowershelf.but only the area where the attachment Bolts are from the engine mount. What did you do? For your dimensions, we made the engine upper mount wider, so the attachment at the firewall is only 3 inch from the longaronslike Mark L did. Thanks Stef.
KR> RUDDER SIZE
Just to say thanks for responses re rudder size. Would seen plan size to 10 percent larger seems to be consensus. Bill Weir
KR> Cylinder Heads Again
Has anyone tried these heads from CB Performance? They look like they have better air flow around the exhaust ports and maybe better quality control? http://www.cbperformance.com/Panchito-044-Cylinder-Heads-90-5-92-Bore-p/1672.htm Roger Bulla rbulla2 at wic.net
KR> Back-up profile engine mount
Stef wrote: > To install the engine mount on the firewall I have to install according > drawing > a L shaped .125 thickness. On the drawing I cant find the length of this L > profile. Do I install it over the full length of the upper shelf? I left out the angle entirely. I don't think you need it (and I've proven it) if you attach the engine mount near the longerons...where the load path is. Just a small pad of 1/8" aluminum epoxied to the wood on the backside to prevent pull through should be fine. Save weight wherever possible... Mark Langford, Harvest, AL ML "at" N56ML.com www.N56ML.com
KR> Cylinder Heads Again
Roger Bulla wrote: > Has anyone tried these heads from CB Performance? They look like they have > better air flow around the exhaust ports and maybe better quality control?< Looks like maybe they have swapped to the "Chinese castings", which are improved over the CB 044 heads that came on N891JF. These are essentially what I bought from DRD Racing. I've done a lot of photos of these and several other choices over the last few weeks, having replaced my heads a week or so ago. See http://www.n56ml.com/n891jf/vw/ for more on this. It's a comparison of several different heads and their air passages. I was happy with the quality of the DRD heads, which looked very similar to the ones in your link. I've put two hours on them so far, and the thing still runs hot, so I'm on a baffling witch hunt now. I need some "conformal" fiberglass plenums on that thing like I have on the Corvair. I'm still looking for ideas on "what works" in various VW aircraft installations, because what I have isn't working. I took off in 95 degree temp yesterday, and after idling to the runway and a quick runup, it was at 400F as I turned crosswind, and I wasn't even at pattern altitude yet! Baffling is pretty tight on this thing, but what I don't know is what's going on in flight between the top of the cowling and the fiberglass/silicone seal. That's my main mission for the next three days until I take off for OSH. One more thing I'm going to do is wrap those hot exhaust pipes (just inside the inlet) with insulating wrap. No sense in preheating my inlet air... Mark Langford, Harvest, AL ML "at" N56ML.com www.N56ML.com
KR> Cylinder Heads Again
Hi Mark, I had high temps on my Revmaster -didn't know what all-so I fitted an adjustable outlet flap to the lower cowling, I fitted a new spring to the pressure relief valve (don't ask -a VW specialist advised me). Fitted a VW oil cooler to the top side. Had an ex RAF test pilot to do the checks and he complained that the engine ran too cool ! I checked with Ken Moult and he said "What's he complaining about"! The test pilot had lost confidence in my engine -so I sacked him... Highlight of my career -an ex Vulcan chiefy sacking an RAF Group Captain (retired) Your results may differ ! All the best to you and your family, Mac On Tue, Jul 19, 2016 at 2:15 PM, Mark Langford via KRnet < krnet at list.krnet.org> wrote: > Roger Bulla wrote: > > > Has anyone tried these heads from CB Performance? They look like they > have better air flow around the exhaust ports and maybe better quality > control?< > > Looks like maybe they have swapped to the "Chinese castings", which are > improved over the CB 044 heads that came on N891JF. These are > essentially what I bought from DRD Racing. I've done a lot of photos of > these and several other choices over the last few weeks, having replaced > my heads a week or so ago. See http://www.n56ml.com/n891jf/vw/ for more > on this. It's a comparison of several different heads and their air > passages. I was happy with the quality of the DRD heads, which looked > very similar to the ones in your link. I've put two hours on them so > far, and the thing still runs hot, so I'm on a baffling witch hunt now. > I need some "conformal" fiberglass plenums on that thing like I have on > the Corvair. > > I'm still looking for ideas on "what works" in various VW aircraft > installations, because what I have isn't working. I took off in 95 > degree temp yesterday, and after idling to the runway and a quick runup, > it was at 400F as I turned crosswind, and I wasn't even at pattern > altitude yet! Baffling is pretty tight on this thing, but what I don't > know is what's going on in flight between the top of the cowling and the > fiberglass/silicone seal. That's my main mission for the next three > days until I take off for OSH. One more thing I'm going to do is wrap > those hot exhaust pipes (just inside the inlet) with insulating wrap. > No sense in preheating my inlet air... > > Mark Langford, Harvest, AL > ML "at" N56ML.com > www.N56ML.com > > > ___ > Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. > To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org > please see other KRnet info at http://www.krnet.org/info.html > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options >
KR> Camp Scholler
Tom and I are driving up to Oshkosh Sunday. ?Will be camping at Camp Schollet. ?Is it better to arrive earlier than later on Sunday or does it matter?? Paul Visk?Belleville IL ?618 406 4705 Sent on the new Sprint Network from my Samsung Galaxy S?4
KR> Camp Scholler
Early as possible is best. ?Won't run out of campsites but you could wind up way out from things Gary Wold Original message From: Paul Visk via KRnet List-Post: krnet@list.krnet.org Date: 07/19/2016 11:37 AM (GMT-06:00) To: EAA Group , KR EMAIL BOARD Cc: Paul Visk Subject: KR> Camp Scholler ??? Tom and I are driving up to Oshkosh Sunday. ?Will be camping at Camp Schollet. ?Is it better to arrive earlier than later on Sunday or does it matter?? Paul Visk?Belleville IL ?618 406 4705 Sent on the new Sprint Network from my Samsung Galaxy S?4 ___ Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org please see other KRnet info at http://www.krnet.org/info.html see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options
KR> Camp Scholler
Earlier. After 9:00 am the ck.in line goes down the street about 1/2 to 3/4 mi. On Jul 19, 2016 12:38 PM, "Paul Visk via KRnet" wrote: > > > Tom and I are driving up to Oshkosh Sunday. Will be camping at Camp > Schollet. Is it better to arrive earlier than later on Sunday or does it > matter? > Paul Visk Belleville IL 618 406 4705 > Sent on the new Sprint Network from my Samsung Galaxy S?4 > ___ > Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. > To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org > please see other KRnet info at http://www.krnet.org/info.html > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options >
KR> Cylinder Heads Again
Mark Langford wrote: >I'm still looking for ideas on "what works" in various VW aircraft installations, because what I have isn't working. I took off in 95 degree temp yesterday, and after idling to the runway and a quick runup, it was at 400F as I turned crosswind, and I wasn't even at pattern altitude yet!< I spent some time looking through my engine log book for my first KR and the CHTs were always in the 400 to 425 degree range on climb out and then around 375-400 in cruise. The last set of heads on that engine were CBP 044s. I purchased then 1990, and had 150 hours on them when I crashed in 2009. When I tore them down the exhaust valves had a lot of wear in the seating area and all the valve spring retainer groves were really worn, along with the valve guides. I had done many different things to get them to run cooler including installing adjustable cowl flaps. I gained the most by smoothing out the cowling exits and changing to full synthetic oil. I remember reading some people reporting a higher CHT using synthetic, but I did get a consistent 25 degree drop in CHT. Of course, the oil temp went up from 170 to 190 in cruise. Not enough to worry me. I have rebuilt the old 044 heads with new valve guides and new 214NSS stainless valves from CBP and recut the valve seats with a Neway cutter. I currently have about 75 hours on them. I Flew on a 100F degree day over the weekend and here are the temps I got. Climb: 330F, taken under a cylinder head stud and 410F under a spark plug. (I think I got hotter than that). Cruise at 6500 ft. 3200 RPM, 145 MPHI: 300F under the stud, and 350F under the spark plug. The engine is a 2180 with the compression ratio set at 7.2:1 I always pull the prop through four blades to make sure the valves have not developed a leak. I have 75 hours on the heads and the engine is still running strong and smooth, but now after shut down and pulling the prop through I have a slight hiss coming from one cylinder out the exhaust pipe. If I let the engine cool for 10 minutes or more the leak goes away. Maybe a sticky valve guide? It will be interesting to see how your DPD heads hold up. Roger Bulla rbulla2 at wic.net -Original Message- From: Mark Langford via KRnet Sent: Tuesday, July 19, 2016 7:15 AM To: KRnet Cc: ml at n56ml.com Subject: Re: KR> Cylinder Heads Again
KR> Florida
Plan on doing my cookout Saturday August 20th at 5 p.m. at Marion Kansas 43k had 3 kr2 there last year terry chizek 620 381 1347 Sent from my Samsung Galaxy smartphone. Original message From: "brian.kraut--- via KRnet" Date: 07/05/2016 3:51 PM (GMT-06:00) To: KRnet Cc: brian.kraut at eamanufacturing.com Subject: Re: KR> Florida I have threatening a southern KR gathering for years.? I don't have time to put together a formal gathering, but if there is interest I can do a one day KR BBQ at my airpark in Green Cove Springs which is near Jacksonville.? Thinking it needs to be after Oshkosh and August is pretty hot.? Camping would be welcome.? Thoughts? Brian Kraut Original Message Subject: Re: KR> Florida From: bjoenunley via KRnet List-Post: krnet@list.krnet.org Date: Mon, July 04, 2016 11:56 am To: KRnet Cc: bjoenunley We should have a Florida state KR2 fly in. Joe Nunley CW2 US Army RetiredBaker JROTC Instructor Baker Florida ___ Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org please see other KRnet info at http://www.krnet.org/info.html see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options ___ Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org please see other KRnet info at http://www.krnet.org/info.html see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options
KR> Florida
I will be there! Thanks for hosting. Rob Schmitt > On Jul 19, 2016, at 5:05 PM, terrypam56 via KRnet > wrote: > > Plan on doing my cookout Saturday August 20th at 5 p.m. at Marion Kansas 43k > had 3 kr2 there last year terry chizek 620 381 1347 > > > Sent from my Samsung Galaxy smartphone. Original message > From: "brian.kraut--- via KRnet" Date: > 07/05/2016 3:51 PM (GMT-06:00) To: KRnet Cc: > brian.kraut at eamanufacturing.com Subject: Re: KR> Florida > I have threatening a southern KR gathering for years. I don't have time > to put together a formal gathering, but if there is interest I can do a > one day KR BBQ at my airpark in Green Cove Springs which is near > Jacksonville. Thinking it needs to be after Oshkosh and August is > pretty hot. Camping would be welcome. Thoughts? > > Brian Kraut > > > Original Message > Subject: Re: KR> Florida > From: bjoenunley via KRnet > Date: Mon, July 04, 2016 11:56 am > To: KRnet > Cc: bjoenunley > > > > We should have a Florida state KR2 fly in. > > > Joe Nunley CW2 US Army RetiredBaker JROTC Instructor Baker Florida > ___ > Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. > To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org > please see other KRnet info at http://www.krnet.org/info.html > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to > change options > > ___ > Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. > To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org > please see other KRnet info at http://www.krnet.org/info.html > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options > ___ > Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. > To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org > please see other KRnet info at http://www.krnet.org/info.html > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options
KR> engine mount
At 07:58 AM 7/19/2016, you wrote: >I left out the angle entirely. I don't think you need it (and I've >proven it) if you attach the engine mount near the longerons...where the >load path is Mark Langford ++ I did not use the angle either, just a crush plate on each side of the firewall, and I've got an 0-200 hanging on a HAPI mount which is not mounted close to the longerons. Larry Flesner
