I'm replacing the Harmonic Balancer on my engine with 142,000 Kms on it. It is one of the recalled units but here in Canada they won't replace it after several calls to Mercedes. The Balancer is OEM (Cortico), the Bolt Is Mercedes and I also have the HB counterholder. The first question I ask is, " how long should it take an Indie to replace the HB and does the Radiator need to be removed to replace the HB?" The second question I would like to ask is, "according to my research, when installing the HB for proper seating of the HB you must torque the center bolt to 200 Nm (147.5 ft lb to be exact) and then tighten a further 90 degrees, is this correct?"