Checked valve clearances and shims on the 2nd motor today, and got four new CR9E plugs fitted. All 16 valves require new shims. May require a new cam chain as the rocker cover has some gouging, will try a new tensioner first. Need a cam cover gasket, but all the spark plug seals look OK.
Valve shims changed out today. Waiting for new tensioner to arrive (ordered from partzilla, only cost me $50 USD including postage - cheap!) New chain and sprocket kit is sitting at the post office waiting for me. Bloody couriers never even buzz. Too lazy to deliver to apartments.