Talk:T-head engine

The first illustration, the old drawing, is technically incorrect.

I've commented on the file page at wikimedia, but I suppose it should be noted here too, because this is probably where the most people see the pic. In short, the problem is that the valves are ahead and abaft of the cylinder, in stead of to either side, and there is only one camshaft directly above the crankshaft. As soon as the engine turns over just a quarter-revolution, the crank will slam into the camshaft. As far as I can figure, a cross-flow side-valve engine must of necessity be a twin-cam engine, with one camshaft on either side of the crankshaft. That way, it can also easily be a four-valve engine, as the two-cylinder engine in the other pic appears to be (the intake valves on the near side are clearly visible; the exhaust valves on the far side more implied by the screw plugs above them, of which a few are visible in the pic). Don't know what should be done about it; finding a better illustration is probably immensely difficult or, more probably, near impossible. Photoshop this one? ;-) --CRConrad (talk) 11:49, 5 May 2017 (UTC)

Re-built this into a new section. Found a better solution than Photoshop: Use the same illustration as on the German-language WP page, T-head single-cylinder Otto engine (Army Service Corps Training, Mechanical Transport, 1911). --CRConrad (talk) 08:46, 9 May 2017 (UTC)