The Dremel tool flex shaft sounds like a good idea. I found that the speedo cable will work if you lower the friction of the attachment to the Zenith carb hi-speed mixture screw, then you won't get the windup problem. I used a 1/4 drive universal joint from a socket set for this. Works pretty well. Pix on request. Chris Gardiner KR2S
Sent from my iPad > On Mar 3, 2014, at 4:46 PM, <brian.kraut at eamanufacturing.com> wrote: > > I believe that I used a Dremmel tool flex shaft for my cable on my > Zenith. I had mine running from the carb to a rack and pinion system so > I could use a regular vernier mixture cable to the rack gear which > turned the pinon connected to the flex shaft and carb needle. It worked > great. > > > -------- Original Message -------- > Subject: Re: KR> Zenith Carb > From: "smwood" <smwood at md.metrocast.net> > Date: Mon, March 03, 2014 11:28 am > To: <krnet at list.krnet.org> > > I am using a Zenith from Great Plains on my 2180 VW. The carb is mounted > > directly behind the Diehl adapter case. If you have a magneto at that > location, then mounting the carb there will not work to well. I used the > > intake manifold kit from Great Plains, but opened the Y section to raise > the > carb higher. The carb mounting plate was cut off and re-welded > 90-degrees > to the original to face the carb air inlet to the right side. I made a > bracket to mount the carb to the center of the Diehl adapter case. The > speedometer cable has some torque wind-up before the mixture needle > actually > starts to move. Wish I could find a cable with the same flexibility as > the > speedometer cable, but without the springy wind up. Using the O2 mixture > > meter with this arrangement is dirt simple. The Zenith does not have an > accelerator pump, so have to slowly advance the throttle from idle to > keep > the engine from stalling. From 700 RPM to 1300 RPM takes about 3 > seconds. > Past about 1300 RPM can jam the throttle with no further concern > > Sid Wood > Tri-gear KR-2 N6242 > Mechanicsville, MD, USA > > >> >> On my old KR I was using the Zenith that Great Plains sells with a single >> runner manifold to the heads. That engine was also a 2180 cc. That >> combination work very well for many years. It ran smooth throughout the >> throttle range, summer or winter, idled well and was easy to start. The >> only >> thing I did not like about it was using a speedometer cable to control the >> mixture. I like the robustness of the hardware on the Revflow. I am going >> to >> try one more time with the new needle, but I am getting all the parts >> together to use the Zenith again. I want to fly the plane and not fixate >> so >> much on the carburetor. Right now I am afraid to go far from the airport. >> Of >> coarse I will have to do some glass work on the cowling to make the Zenith >> fit and come up with a mixture control for it, because it needs to hang >> lower under the engine. > Re: flying, KR 19-8322 (Roger Bulla) > > > > > _______________________________________________ > 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
