How to Install the Camshaft in a Sylphy

[Claire]

Before installing the camshaft, first install all the bearing caps and check if the camshaft holes are misaligned. The camshaft for cylinder 1 must be facing upwards and not pressing on the valves. Tighten the 2nd and 5th bearing caps alternately in a diagonal pattern with a torque of 20Nm, then install the 1st and 3rd bearing caps, and finally install the 4th bearing cap.

[DeNatalie]

I've installed the Nissan Sylphy camshaft several times because I love DIY car repairs. Preparation is crucial: let the engine cool down completely to avoid burns; tools needed include wrenches, sockets, a torque wrench, and camshaft alignment pins or timing tools—these are essential. When removing the old camshaft, start by taking off the valve cover and timing chain cover, proceed slowly, and don’t rush. Remember to mark the positions with a marker pen to avoid confusion during reinstallation. For installing the new shaft, timing alignment is critical—rotate the crankshaft back to top dead center, and ensure the camshaft gear and chain marks are aligned. Even a slight misalignment can damage the pistons. Lubricating the bearing surfaces is important—apply clean engine oil to reduce wear; tighten bolts evenly and follow the manual’s torque specifications—don’t over-tighten. After installation, manually turn the crankshaft a few times to check if all marks reset smoothly. For safety, wear goggles and gloves, and ensure the workspace is ventilated. A reminder: once I rushed and forgot to align properly, triggering engine fault codes and costing a fortune to fix—so take photos at every step for reference.

[BethanyMarie]

Installing the Sylphy camshaft is a routine job in our repair shop. First, thoroughly remove related components such as the belt and timing cover. When extracting the old camshaft, handle it gently to avoid scratching the cylinder head surface. The key to new camshaft installation is timing alignment: use specialized tools to fix the crankshaft position, ensuring the cam gear sprocket marks precisely match to prevent chain skipping. Before installing the new shaft, apply a layer of engine oil to lubricate the bearings, then gently rotate to test smoothness before securing. Bolt tightening follows a specific sequence—use a torque wrench to tighten in stages to the specified torque to avoid deformation from over-tightening. After completion, manually rotate the crankshaft two turns to verify positioning; otherwise, valve-piston collision could cause major damage. The entire process must follow the manual, and having all tools ready saves trouble. But honestly, inexperienced individuals should seek professional shops—incorrect timing can destroy the engine.

[ElleLynn]

First time replacing the Sentra's camshaft myself, I was all thumbs. Gathered wrench sockets, new camshaft, and timing diagram, followed YouTube tutorials. Fumbled removing old shaft—almost damaged the seal. Installation part: aligning timing marks was tricky, secured crankshaft position, matched cam gear and chain dots, succeeded after two attempts; applied grease before gently seating shaft. Evenly torqued bolts with socket—got overzealous, slightly warped bearing cap. Post-installation, rotating crankshaft revealed abnormal noise, engine threw codes upon restart. Lesson: prep tools thoroughly, work methodically; rookie mistakes happen—better to seek mechanic or buddy's help.