How to install piston/connect rod assemblies on Nissan Frontier?

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So, before you start putting the piston/rod assemblies in place, make sure that cylinder walls are clean enough, the top edges of all cylinders are chamfered and the crankshaft is installed. First, take off the cap at the end of number one connecting rod. Just get rid of old bearing inserts and thoroughly clean both rod and cap bearing surfaces with a soft cloth that is perfectly clean and free from fluff. Clean the backside of upper insert that's new for connecting rod bearing oil clearance check, fit it into the rod ensuring its tab aligns with hole at recess backside. Do this for another insert and the rod cap, taking good care to protect their faces from any oil or dirt contamination. Carefully place the piston rings as specified around the piston and lubricate them with fresh engine oil. Affix a piston ring compressor to hold compression as you guide it into position in the cylinder with skirt sticking out slightly. Rotate crankshaft until number one connecting rod journal reaches bottom dead center (BDC) and then apply oil on cylinder walls. The notch in pistons should face toward other end of engine behind belt or chain drive when inserting piston/connecting rod assembly into number one cylinder bore using gentle tapping motion onto crankshaft journal. Always keep rings compressed during this process; do not force piston if it is stubborn going through dead center. Finally, there should be a similar examination for connecting rod bearing oil clearance by placing Plastigage on number one connecting rod journal then installing rod cap without disturbing Plastigage in case something goes wrong because Plastigage has been removed carefully without harm to any part of the engine or other components involved in its operation which will require complete overhaul sooner rather than later due to failure caused by lack maintenance practices depending on how long it took since last service was done but sometimes engineers can make mistakes even unintentionally such as leaving some leftover material inside their cars after assembling them hence leading catastrophic consequences if not attended time by qualified technicians. As you tighten nuts, use a lightweight socket and do not turn the crankshaft. Gently unfasten rod cap verifying oil clearance matches given specifications with reference to width of crushed Plastigage as seen on envelope. Otherwise, check out various bearing inserts after confirming cleanliness and journal diameter. Remove all Plastigage material then apply clean moly-base grease/ engine assembly lube to bearing faces and reinstall rod cap. Repeat the same process for the other pistons/connecting rods ensuring cleanliness, correct assembly, correct "W" mark position and lubrication as required. Hand-rotate the crankshaft after all these assemblies have been installed for binding purposes. Finally, check connecting rod endplay against specifications and take necessary steps if endplay is wrong such as resizing or replacing rods should be done when it is not sufficient/excessive according to allowable range specified in given service manual by manufacturer of your particular vehicle/motorcycle model which can be obtained through authorized dealerships or directly from their websites depending on where you reside within continental United States (CONUS).

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