When to Adjust Tappets?
Adjusting the Tappets on Pushrod Engines. Measure the Gap Between the Rocker Pad and the Valve Stem; the Feeler Blade Should Slide in to a Close Fit. If It...
Adjusting the tappets on pushrod engines. Measure the gap between the rocker pad and the valve stem; the feeler blade should slide in to a close fit. If it will not go in or if it goes in with room for movement, adjust the gap.
Why do tappets need adjusting?
Why tappet clearance is necessary
It accommodates the thermal expansion of the valve's axis (spindle) that is caused by the heat of the ship's engine when in operation. It ensures the closing of the ship's valve regardless of temperatures and working conditions.
How do you know when to adjust your valves?
You should have your valve lash inspected at manufacturers recommended intervals. A sure sign that it's time for a valve lash adjustment is if your engine is making a loud clicking or tapping noise when starting up or if you experience a loss in engine power.