OEM 2009 Chevrolet Express 3500 Harmonic Balancer

2009 Chevrolet Express 3500 Harmonic Balancer Parts Questions & Experts Answers

• Q: How to replace the harmonic balancer on 2009 Chevrolet Express 3500?

  A: The first step when replacing a crankshaft balancer starts with air conditioning Drive Belt removal for equipped vehicles but not for vehicles without it. Your next task should be to remove the lower Fan Shroud along with the Starter motor. To attach the j 42386-a mesh its teeth with engine Flywheel teeth while using one m10-1.5 x 120 mm and one m10-1.5 x 45 mm bolt for installation by applying 50 nm (37 lb ft) of torque. The crankshaft balancer bolt will serve as part of the replacement procedure so keep it for later use. Extract the crankshaft balancer using the j 41816 and j 41816-2 then clean and inspect it for further maintenance. After positioning the crankshaft balancer directly on the crankshaft you can use the j 41665 and j 41478 to complete the insertion. The tools j 41478 require combination with a threaded rod and nut with washer when starting the smaller end into the balancer until the tool begins to engage the crankshaft surface. Use the tool to tighten in reverse direction until the balancer reaches complete installation. First install the used crankshaft balancer bolt to 330 nm (240 lb ft) before removing it. Per the installation requirements the crankshaft nose must reach 2.4-4.48 mm (0.094-0.176 in) depth inside the balancer bore. Additional installation steps may be needed to achieve the target depth. The installation process requires a new crankshaft balancer bolt that should be tightened initially to 50 nm (37 lb ft) and further to 140 degrees with j 45059 as the tool. The procedure ends by removing j 42386-a along with the bolts and reinstalling the Starter motor and lower Fan Shroud and drive belts while performing the crankshaft position system variation learn procedure.