My 67 Fastback NJ restoration
Please correct me if I am wrong but it is my understanding that after all components were assembled on or threw the firewall that a sealer/undercoat was sprayed on the area of the parts that stuck threw the firewall into the engine compartment, i.e. blower motor, master cylinder, wiring harness. This was presumably to seal against water intrusion from above. This sealer looks like black undercoat. Was this really sprayed on all cars or just cars from specific assembly plants and did it matter if the car had or did not have the undercarriage undercoated at the factory? And finally, is black undercoating and acceptable replacement for this sealer or is there something else. I believe this is what is referred to in the MCA rulebook as line Z. Thanks Scott