Genuine 2006 Chevrolet Colorado Crankshaft Seal

2006 Chevrolet Colorado Parts Questions & Experts Answers

• Q: How to remove and replace the front Crankshaft Seal in V8 engine on 2006 Chevrolet Colorado?

  A: Remove the crankshaft balancer. Note how the seal is installed; the new one must be installed to the same depth and facing the same way. Carefully pry the oil seal out of the cover with a seal puller or a large screwdriver, ensuring not to damage the crankshaft in the process. Be very careful not to distort the cover or scratch the crankshaft, and wrap electrician's tape around the tip of the screwdriver to avoid damage. If the seal is being replaced with the timing chain cover removed, support the cover on top of two blocks of wood and drive the seal out from the rear with a hammer and punch, taking care not to scratch, gouge, or distort the area that the seal fits into to prevent leaks. Apply clean engine oil or multi-purpose grease to the outer edge of the new seal, then install it in the cover with the lip facing inward, avoiding lubrication of the sealing part. Drive the seal into place with a large socket and hammer, ensuring it enters the bore squarely and stopping when the front face is at the proper depth. Check the surface on the balancer hub that the oil seal rides on; if it has been grooved from long-time contact with the seal, replace the crankshaft balancer. Lubricate the balancer hub with clean engine oil and reinstall the crankshaft balancer, with the remainder of the installation being the reverse of removal.