By Bill Crowley, Chubb & Son

While insurance does not cover a prized vehicleโs sudden or gradual mechanical breakdown, it does address a mechanical failure that causes or results in a collision. Such claims tend to fall into three categoriesโbreakdowns in the carโs braking, steering or suspension systems.
Face itโolder cars have older mechanical and braking systems. Chubb recently received a claim for a 1950s-era Mercedes-Benz that hit a tree outside the ownerโs driveway after the hydraulic brakes failed.
It wasnโt until 1968 that automobiles were required by law to have dual master cylinders so if the front tiresโ hydraulic brakes failed, the rear brakes (and vice versa) wouldnโt. With older braking systems, if a single hydraulic braking line was punctured, the brake pedal hit the metalโin a bad way. Chubb has also confronted collision claims emanating from brakes that failed because of corroded steel components in the master cylinders, brake calipers and brake lines.
Just like brakes, steering systems can leak and fail, with both hard metal and soft rubber lines susceptible to puncturing, corrosion and wear.
A carโs suspension system is equally vulnerable to wear and tear. Owners of vintage race cars have probably had the vehiclesโ suspension systems upgraded, given the demands of the track. Still, welded and casted components can fissure from the enormous stresses, from sudden accelerations and decelerations to abrupt turns, placed upon the suspension system.
Mechanical failure isโin a wordโguaranteed. This doesnโt mean that it cannot be corrected or mitigated. Routine โcrackโ testing of suspension systems by licensed restoration specialists will divulge the tiniest fractures. Such testing would be critical and possibly required on any race car. Similar periodic inspections of brake and steering systems will shed a light on dry rotting and other forms of deterioration, in addition to pin-sized holes.
Inspections, of course, precede necessary repairs by trusted, professional mechanics. While sports car owners cannot eliminate the threat of collision, they can at least reduce the mechanical failures that contribute to this risk.






