OEM 2007 Chevrolet Express 3500 Harmonic Balancer

2007 Chevrolet Express 3500 Parts Questions & Experts Answers

• Q: How to replace the harmonic balancer on 2007 Chevrolet Express 3500?

  A: The replacement of a crankshaft balancer requires specific tools including an angle meter (J 45059) and a crankshaft balancer remover (J 41816) together with a crankshaft end protector (J 41816-2), a flywheel holding tool (J 42386-A), a crankshaft balancer and sprocket installer (J 41665) and a crankshaft front oil seal installer (J 41478). Begin by taking off the air conditioning Drive Belt when equipped or moving forward with the accessory Drive Belt when no ac system exists. Remove the lower Fan Shroud together with the Starter motor while confirming that the j 42386-a flywheel holding tool touches the engine flywheel. Use the crankshaft balancer bolt again for installation while you remove it now during this stage. The j 41816 with the j 41816-2 extract the crankshaft balancer before cleaning and performing an inspection of the component. Position the balancer directly onto the crankshaft with the assistance of j 41665 followed by j 41478. To proceed attach the j 41478 tool following its smaller assembly end onto the balancer which you must tighten until the balancer begins its motion against the crankshaft. Turn over the installation tool to tighten it progressively until the balancer reaches full installation. After tightening the used crankshaft balancer bolt to 330 n.m (240 lb ft) reinstall and remove it for final balancer positioning verification. The installation process should be executed a second time with the j 41665 tool when needed. Install the new crankshaft balancer bolt by first tightening it to 50 n.m (37 lb ft) and then further tightening it to 140 degrees using the j 45059. The technicians must first uninstall both j 42386-a and bolts followed by the reinstallation of the Starter motor and lower Fan Shroud and drive belts before performing the crankshaft position system variation learn procedure.