Twin Cam Quad Valve Lego Technic Example (version 3)

Lego Technic Twin Cam Engine Solution. This DOHC system is the third prototype as I wait for the longer springs before I can actually put an engine together

A lot stronger than the original one as that one fell apart while running

To make it easier to adjust the timings I’ll use z16 as show with a z8 x 3 z12 to z24 gear solution similar to the 2CV engine

One of the bigger modifications is the inclusion of cam rocker followers which look to work well

I’d to remove the crankshaft system which took a while to replace with the method you see in this prototype

#dohc #engine #ideas #legoideas