Genuine 1993 Mercedes-Benz 190E Harmonic Balancer

1993 Mercedes-Benz 190E Harmonic Balancer Parts Q&A

• Q: How to remove and refit the harmonic balancer and hub in the Diesel engine on 1993 Mercedes-Benz 190E?

  A: 4-cylinder engines do not have a vibration damper, and 5-cylinder engines have a one-piece crankshaft pulley/vibration damper, so both types have a similar removal/refitting process. Removal of the crankshaft pulley / vibration damper = To withdraw the component, the battery negative lead must be disconnected, the bonnet brought fully down, removal of the radiator, removal of the auxiliary drivebelt, unscrewing the securing bolts on the hub securing bolt as necessary. To refit, the removal sequence is to be reversed, making sure to refit the auxiliary drivebelt, radiator. A puller and a torque wrench with appropriate torque is required when dismantling the hub then fitting in, or pulling it. The next thing is to take out the crankshaft pulley/vibration damper and then design a tool that will hold the hub between two steel bars that are billed by a pivot bolt, and glued together with the pulley/vibration damper-to-hub bolts. Before taking away the hub on the crank-shaft, loosen the hub bolt by means of a socket and long swing-bar, and unscrew it, and take out the spring washers or conical washer if necessary. To refit, place the hub hole as central as possible with locating pin to crankshaft end, clamp the hub over crankshaft end, and providing there are spring washers, lubricate them with oil and replace with the convex side upward. When a conical washer is in place, remove and install the larger diameter washer over the hub. Coat the threads on the bolts with a coating then reassemble the corrective bolt, fasten the holding apparatus, and tighten the bolt appropriate to prevent injuries and damages before lastly assembling the crankshaft pulley/vibration damper.