Honda 14401-R40-A01 Chain (176L)

The timing system is complex, and severe engine damage will occur if mistakes are made; do not attempt this procedure unless highly experienced with this type of repair, and if unsure, consult an expert. Double-check all work to ensure everything is correct before starting the engine. Begin by disconnecting the cable from the negative battery terminal, then set the engine to the compression stroke for cylinder number 1. For 2015 and later CR-V models, remove the high-pressure fuel pump, followed by the valve cover and the timing chain cover. Rotate the crankshaft counterclockwise slightly to compress the chain tensioner, then install a 0.06 inch (1.5 mm) pin into the alignment holes to lock the tensioner, and rotate the crankshaft slightly clockwise to secure the pin. Remove the mounting bolts and the timing chain tensioner, then take out the upper timing chain guide from between the camshaft sprockets, followed by the camshaft timing chain guide and the tensioner arm, and finally remove the timing chain. Clean all parts with solvent and dry with compressed air if available, then inspect the chain tensioner for excessive wear or damage, ensuring to drain all oil if it is to be reused. Check the timing chain guides and the timing chain for excessive wear or damage, and inspect the crankshaft and camshaft sprockets for chipped or broken teeth or excessive wear, replacing any questionable components. Before starting the engine, carefully rotate the crankshaft by hand through at least two full revolutions; if any resistance is felt, stop immediately as there may be an issue with valve contact. Ensure the timing mark on the crankshaft sprocket is aligned with the pointer on the engine lock, and verify that the chain alignment dots on the VTC actuator and the exhaust camshaft sprocket are at the 12 o'clock position, with the TDC alignment marks on the sprockets opposite each other at the 9 and 3 o'clock positions. Install the timing chain, aligning the crankshaft sprocket with the colored link on the chain, then install the timing chain over the exhaust camshaft sprocket and the VTC actuator with the marks aligned. Install the camshaft timing chain guide and the tensioner arm, tightening the bolts to the specified torque, followed by the timing chain tensioner and the upper timing chain guide, also tightening the bolts to the specified torque. Remove the pin from the timing chain tensioner, slowly turn the crankshaft clockwise two revolutions, and recheck the timing marks and camshaft sprocket index marks for proper alignment. If the crankshaft binds or seems to hit something, do not force it, as this may indicate incorrect valve timing; in such a case, remove the chain and repeat the installation procedure. Finally, install the valve cover and the timing chain cover, reconnect the battery, and run the engine to check for leaks.

To have access to the components one has to disconnect the cable on the negative terminal of the battery. Position the engine at Top Dead Centre for the number 1 cylinder, and then remove the valve cover along with the engine front cover. A small amount of rotation clockwise should be made in the crankshaft in order to screw into the holes a 0.05 inch (1.2 mm) pin and this will compress the chain tensioner, the other way round should be made in order to fix the pin. Then, dismantle all the bolts from the mounting and extract the timing chain tensioner and the upper timing chain guide between the camshaft sprockets and remove the camshaft timing chain guide, the tensioner arm, and the timing chain. For test or assembly, clean all parts by solvent and blow with compressed air free from oil, lubrication and dirt, then examine and check the chain tensioner for wear or damage and drain off any oil if refilling later. Inspect the timing chain guides, timing chain, and crankshaft and camshaft sprockets and replace any item that is suspect in its ability to provide long and worry-free service. During installation, if the crankshaft has been turned, be confident that the number one piston situated at the top dead centre with the timing mark situated in line with the pointer on the crankshaft sprocket. Place the chain alignment dots on the camshaft sprockets with the chain as follows; turn the sprockets until the alignment dots likes up. Fit the coloured link to the crank sprocket at full clockwise position and over the exhaust camshaft sprocket and the VTC actuator, such in a way that the dot is on the same colour of the chain link. Place the camshaft timing chain guide and the tensioner arm and tighten the bolts in the already mentioned torque limit;finally fit the timing chain tensioner and the upper timing chain guide and tighten the bolts in the already mentioned torque limit. Take out the pin in the timing chain tensioner, bolt on the valve cover and the engine front cover and rearrange the battery. Last, with the engine on, observe the presence of oil or coolant leaks.

Ensure the number one piston is at the top of its stroke with the timing mark aligned with the pointer on the crankshaft sprocket.

The timing system is complex, and severe engine damage will occur if mistakes are made. Only highly experienced individuals should attempt this procedure, and if there is any uncertainty about abilities, consulting an expert is advised.