Honda 14111-PM6-A10 Camshaft

To facilitate installation, ensure that the No. 1 piston is at Top Dead Center before removing the camshaft. Begin by disconnecting the negative battery cable and bringing the piston in the No. 1 cylinder to TDC on the compression stroke. Proceed to remove the valve cover, timing belt front covers, and the timing belt, followed by the camshaft sprocket and rocker arm assembly. Next, remove the camshaft and camshaft seal. For installation, reverse the removal steps, lubricating the lobes and journals of the camshaft beforehand, and install it with the keyway facing up. Install the rocker arm assembly by loosening the locknuts and backing off the adjust screws, then set it in place and loosely install the bolts. Tighten each bolt two turns at a time in the proper sequence to prevent binding on the valves, and finally, tighten the rocker arm bolts to 16 ft. lbs. (22 Nm). Lubricate a new camshaft seal and install it using a suitable tool, ensuring to properly set the tension of the timing belt afterward. Tighten the crankshaft pulley bolt to specification and adjust the valvelash. For inspection, degrease the camshaft with a safe solvent and clean all oil grooves, then visually inspect the cam lobes and bearing journals for excessive wear. If any lobe appears questionable, measure all lobes and journals with a micrometer, checking the lift by subtracting the measurement at 90° from the measurement at the nose. If the lobes are not identical, the camshaft must be reground or replaced. Measure the bearing journals and compare them to specifications; if a journal is worn, the cam bearings likely require replacement as well. If the lobes and journals appear intact, place the front and rear cam journals in V-blocks and rest a dial indicator on the center journal, rotating the camshaft to check for straightness; if deviation exceeds 0.025mm, the camshaft should be replaced.