I am finally switching to a Hartzell prop on my RV-6. The trusty Sensenich is coming off. I am not going to go into great detail on the conversion (Brian Chesteen did that a while back - thanks, Brian!) but I thought I'd post some information that I found hard to come by as I complete the project.
First, my O-360 is a narrow-deck ("standard flange") engine from a 1959 Mooney M20A. I bought the core with the governor adapter but the governor oil line was aluminum so I chucked it. Lycoming S.I. 1435 gives information regarding conversions to and from C/S operation. The S.I. lists part numbers for the oil line, 3 numbers for the narrow-deck engines. No idea which one fits my engine. Nobody (including Lycoming) seems to know. Long story short - the Lycoming #75167 for the wide-deck engines fits with minor tweaking. mustangbob51 helped me with that (thanks again!) The nose case fitting is an AN822-6 steel 90 degree elbow. The governor adapter fitting is an AN823-6 steel 45 degree elbow (pipe thread in the adapter), or Lycoming #74070 (straight threaded adapter). Some of the early engines had a -5 line and fittings so you'll be converting to -6 for the flared size.
I plan on adding to this post as I find things that might be helpful...
First, my O-360 is a narrow-deck ("standard flange") engine from a 1959 Mooney M20A. I bought the core with the governor adapter but the governor oil line was aluminum so I chucked it. Lycoming S.I. 1435 gives information regarding conversions to and from C/S operation. The S.I. lists part numbers for the oil line, 3 numbers for the narrow-deck engines. No idea which one fits my engine. Nobody (including Lycoming) seems to know. Long story short - the Lycoming #75167 for the wide-deck engines fits with minor tweaking. mustangbob51 helped me with that (thanks again!) The nose case fitting is an AN822-6 steel 90 degree elbow. The governor adapter fitting is an AN823-6 steel 45 degree elbow (pipe thread in the adapter), or Lycoming #74070 (straight threaded adapter). Some of the early engines had a -5 line and fittings so you'll be converting to -6 for the flared size.
I plan on adding to this post as I find things that might be helpful...
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