Rockers and cams

Rockers installed on heads.The sleeves have been inserted in the barrels with an o ring at the bottom  and locktite 515 sealant at the top.

Individual cam being machined from silver steel.The cams have  30mm radius flanks and a 10mm bore to fit on a 10mm 4140 steel shaft.Each cam has a 5mm wide flange which is threaded 3mm for a grub scew.

Loose cams after machining and some blanks that have been bored and reamed 10 mm. A slot has been machined to separate the cam from the flange.

This image shows number 4 cylinder with 2.2 mm push rods installed.The tappet adjusters are made from high tensile hex 4mm bolts.  A hemi spherical cavity is machined into the heads and the hex turned off. The push rods have domed ends and are made from music wire .The bottom of the pushrods fit into 6mm deep holes in the cam followers

Note the angle on the radiator which is due to the suspension springs not being strong enough to take the weight of the engine. The springs will need to be much stronger to support the additional weight of the flywheel and crankshaft