The rack and pinion were off the shelf parts. I think I got them at McMaster Carr, but possibly I had them left over from something else. I have a lot of stuff like that around my shop. The pinion gear was on a 1/4" diameter shaft if I recall correctly and had a bearing on each end. The housing was a block of aluminum with a rectangular slot milled in it for the rack and bore for the bearing and shaft. The top cap was aluminum and had the bearing for the other side of the shaft. The black piece on the right end is steel and it clamps the housing of the mixture control shaft.
The one thing I was never happy about with the setup was that there was a packing and gland nut on the carb around the mixture screw that had to be loose enough to let the shaft turn, but tight enough so it would not leak. A much better setup would have been something with an O ring. It seemed to work fine in the 40 something hours I used it, but it was not going to last forever. -------- Original Message -------- Subject: Re: KR> Mixture control on Zenith carb From: "schmleff ." <schmleff at gmail.com> List-Post: krnet@list.krnet.org Date: Tue, April 08, 2014 12:00 am To: KRnet <krnet at list.krnet.org> That was me. It was the rack and pinion thing that I was interested in. What did you use for the rack and pinion parts? Were they off the shelf or custom? I need to make something similar for my Mikuni SBN. Jeff Lange On 4/7/14, brian.kraut at eamanufacturing.com <brian.kraut at eamanufacturing.com> wrote: > > A few people asked about how I did the mixture control on my Zenith carb > a few months ago. Now that someone posted about the great Wayback > machine internet archive I can share the pictures of how I did it from > my long ago down KR pagy on my website. Here they are: > > http://web.archive.org/web/20070815131333/http://www.engalt.com/fuel1.htm > > > _______________________________________________ > 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
