Hope you all had a nice Xmas. Rather than take the valve cover off I have borrowed a set of .000 inch digital calipers and measured the tappets. One tappet measured 1.278 inches and the other 1.280. Using the feeler gauges and your clearance measurements, both measure out at 1.286 therefore I have determined which tappet is which without the need to take the valve cover off. All I need to know now is which tappet hole is which. Can you please advise whether the exhaust tappet is the closest or furthest from the piston?
