ORIGINAL: sbtiger
I went ahead and re-assembled and found top dead center on the cylinder head and push rods. Is this were I put my feeler gauge in and adjust my rocker arm? Wy8e, what is the photo trying to show with the red line? Also, I noticed the feeler gauge you show is stating a .04mm gap? Is this correct? I thought it was .002" (.05mm) min to .004" (.10mm) max. for a gap? My feeler gauge only goes down to .002" (.05mm).
And thanks for the weather report, sometimes I wish I lived further south to fly more.
Steve
There is a dot timing mark on the cam. With the crankshaft at top dead center insert the cam with the dot in line with the push rods/cam followers. It is easier to get it right with the dot at the top/ The red line indicates the alignment of the timing dot with the pushrods/camfollowers. The cam twists when it goes in because of the gear teeth. Make sure it is aligned when fully seated.
The valves can be set with the piston top dead center on the compression stroke. The piston might be on top dead center on the overlap stroke where both valves are partially open but you don't want this position.
It may be easier for you to set the valves with one valve completely open and the other completely closed? You set the closed valve and then turn the crankshaft to swap the valve positions and set the other valve
The valve setting tolerence is .002" to .004"