It is the gap between the rocker arm and the push rod or valve in the head of the engine. How much it is varies with each model of engine.
Valve clearance of Volvo f12, are set using a feeler gauge on the lash adjuster.
Valve clearance
To adjust the valve clearances on a GN 125, first, ensure the engine is cool and remove the valve cover. Rotate the engine to set the piston at Top Dead Center (TDC) on the compression stroke for the cylinder you're adjusting. Use a feeler gauge to check the clearance between the rocker arm and the valve tip, adjusting the clearance by loosening the lock nut and turning the adjuster screw until the specified clearance is achieved. Finally, re-tighten the lock nut, recheck the clearance, and replace the valve cover.
clearance valve of 225 Yamaha
valve clearance of 4dr7
You can check the valve clearance with a valve clearance guide. Slide the guide between the valve. The guide will register the clearance.
Valve clearance 12pc1
To adjust the valve clearance on a Deutz BF 1015 C engine, first ensure the engine is cold. Remove the valve cover to access the valve train, then rotate the crankshaft to set the piston of the cylinder being adjusted at top dead center (TDC) on the compression stroke. Use a feeler gauge to measure the clearance between the rocker arm and the valve stem, adjusting each valve's clearance to the specified measurement by using appropriate shims or adjusting screws. After completing the adjustments, recheck the clearances and then replace the valve cover.
what is the valve clearance for the mazda b2500 engine
valve clearance for vstar 650
valve clearance nissan d 27
On a Yamaha 1980 XS400 the valve clearance for the inlet valve should be 0.0003 inches. The valve clearance for the exhaust should be 0.006 inches.