A cracked balancer would not have caused any problems. Based on the explanation the tentioner came apart. The balancer also comes apart and causes all kinds of problems, but it has to come apart to cause them.
If the balancer did not come apart it sounds to me like the tech did a thorough job repairing the damage and noticing other issues in the area.
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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician
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