Dan, I'm glad you asked that question. I am using these mount adapters that allow the O-200 to mount using the C-85 style mount bushings. <http://www.ebay.com/itm/Continental-O-200-C-85-Engine-Mount-Adapters-O200-/270512715002> The engine will sit close to an inch farther forward with the standard O-200 mount bushings (see picture at the bottom of the web site above). The clearance is sufficient that one can easily change a magneto, starter, or generator.
That is not to say that you shouldn't or can't use the standard O-200 mount bushings if you have them. For me, it was a way to change over from the C-85 to the O-200 without moving the engine forward which would have required a rebuild of the cowl. -Jeff Scott Los Alamos, NM ----- Original Message ----- From: mfreem...@indy.rr.com Sent: 06/21/12 01:30 PM To: KRnet Subject: Re: KR> Engine mount I've got the mount jig built and ready to start fitting the 4130 steel that I got from Wicks Aircraft. The original mount was so close to the firewall that you had to undue the mount bolts and slide the engine forward to pull the starter off and that was with a 3/8ths" aluminum spacer. The battery was mounted on the floor under my knees to get the weight forward and with two people in the plane it was tail heavy with full fuel untill you burned some off from the wings. So I think moving the engine forward will only help the weight and balance. Of those who have the Cont. O-200 engine mounted in their plane, how far forward of your firewall are the face of your engine mount bushings? Mine will be 11-1/2" per the plans Jeff sent me. The old mount was about 10 or 10-1/2" without the 3/8ths" spacers. Dan. ---- Larry&Sallie Flesner <fles...@frontier.com> wrote: > At 12:24 PM 6/19/2012, you wrote: > >Ok I finally had some success with the KRnet search engine. > > > >It seems like Rand Robinson recommended the crank centerline be > >1-1/2" below the top of the longeron. > +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > > I'm using a HAPI VW mount for my 0-200 as did Marty Roberts. My > mount has 1 inch aluminum spacers on the firewall. As I recall, the > top mount bolts on the firewall are centered on the top spruce member > on the firewall, in my case that is a 3/4 inch by 3 1/2 inch spruce > plank, slightly bigger than the plans call for, and those bolts are > in line with the top engine mount bolts. This puts the thrust line > just a few inches below the top longerons and only a few inches below > the horizontal stabilizer. I'm guessing that a few inches up or down > from there will make very little difference in the handling, only the > fitting of the cowl. > > As always, your results may vary. :-) > > Larry Flesner > > > _______________________________________ > Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. > 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://tugantek.com/archmailv2-kr/search. To UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html
