Honda 14110-R40-A00 Intake Camshaft

The camshaft holders, camshafts, and rocker arm assembly are fastened to the cylinder head as a unit and therefore have to be removed together The unit can be dismantled on the workbench after being removed. Start with the removal of the negative terminal of the battery, aligning the first piston number with reference to the TDC on the compression stroke of the first cylinder, withdrawal of the valve cover and timing chain. Turn all the rocker arm adjusting screws in an anticlockwise direction, remove the camshaft holder bolts according to the prescribed order, and then the upper timing chain guide. Raise the camshaft holders and the camshafts away from the rocker arm assembly, then remove the rocker arm assembly, also; be sure to put each bolt into the right camshaft holder in order to rebuild it in the correct manner. In the case that the intake camshaft sprocket is removed and intended to be reused, correct preservation to lock advance and retard holes using tape then use compressed air. Depending on the model, you may need to remove a few bolts to pull the rocker arm assembly apart to check for wear; lay out the individual parts in a logical order, so that you do not forget where they go during reassembly. After cleaning, ensure that all these components do not show signs of wear on them and if they do they are replaced. The camshaft endplay can be checked by installing the rocker shaft holders, camshafts, camshaft holders, engaging a dial indicator on the cylinder head and drawing back the camshaft to get the reading. For camshaft runout, place the camshaft between the V-blocks; install the dial indicator and turn the camshaft; compare the reading to the limit. Examine the camshaft bearing journals and the caps for signs of scoring and wear and replace them if worn out; on the cam lobes, there may be wearing, convering height with a micrometer. If any issues are found, then find out the reasons for less lubrication or grimy oil before getting new parts for replacement. For installation, apply engine assembly lubricant to every part prior to its installation, replacing the rockerarms back to the shafts and be certain that the side of the camshaft sprocket holding the timing marks upward before tightening the camshaft holder bolts following some sequence. The rest of the installation is the reverse of the removal process and after testing the engine, look for leakage and correct functioning.

The camshaft holders, camshafts, and rocker arm assembly are fixed directly to the head by a number of bolts only and in some engines they can be unbolted as a complete unit on the bench. Starting with the removal of the negative terminal of the battery and, placing the number one piston at TDC. Take off the valve cover and the timing chain after it then slacken all the rocker arm adjusting bolts. The camshaft holder bolts are then to be removed using the correct sequence and then the upper timing chain guide. Lift off the camshaft holders and camshafts, and remove the rocker arm assembly Fig 2, but make sure that each bolt marketed will fit back in the camshaft holder for reassembly. When the intake camshaft sprocket has been replaced it should be secured by sealing the advance and retard holes with the help of tape and the lock should be released with the help of compressed air. For inspection, remove the rocker arm assembly by taking out all the retaining bolts and lay down the various subassemblies in a order where they can be reassembled in the right sequence. Clean the assembly and look for signs of wear and tear and damage them on rocker arm faces, shaft and bearing surfaces. If checking camshaft endplay: install rocker arm assembly and camshafts, then mount a dial indicator and witness the reading as you try to move the camshaft. For camshaft runout, it is necessary to place the camshaft in to V-blocks and turn it it in order to measure runout. Camshaft bearing journals and caps needs to be checked for their wear and tear, the cam lobes for scoring and, for uneven wear, the required parts should be replaced. Some of them involve lubrication and cleanliness so that they don't experience it again in future. For installation, coated all parts, rearranged the rocker arms, and aligned the correct configuration of the camshaft sprocket timing marks. Torque the camshaft holder bolts in the correct order and finish the procedure in the reverse process of what was done earlier, followed by the checking of all valve clearance, and leaks, etc., after the running of the engine.