Wednesday, 6 February 2013

The Ins And Outs Of Automotive Restorations

By Terrie Joyner


For your car to remain in a resplendent state, it is paramount that you deliver it to automotive restorations technicians once in a while. These procedures will not only target the body work but also aim at paying attention to major car systems. In these workshops, repairs are concerned with the replacement of worn parts as well as touching up on any areas that will boost the beauty of a vehicle.

Once in a while, the foreman will order the complete dismantling and inspection of power units and the transmission system. Torn seat covers and dashboards will need a makeover while the general upholstery and comfort features in the passenger cabin are being inspected. Some of the most popular routines include Formica coatings on dashboards and leather sheaths for gear levers.

As the main powerhouse under the hood, the engine deserves a lot of attention to details. All seals and gaskets must be replaced during reassembly to avoid messy leaks and wastage of lubricants and fuel. Valves are the only means of communication between the combustion chambers and the atmosphere for intermittent intake of air. A worn valve face is characterized by scrawls and rough ends on the smooth surface. Depending on the state of wear, the mechanics may either grind them or recommend a change.

The four stroke cycle finds the widest application in modern day motor vehicle engines. In piston type arrangements, a cylindrical bore restricts the motion of a plunger driven by a connecting rod attached to the crankshaft. Throughout its operation, the piston must maintain an air tight seal between the upper and lower ends of the cylinder for efficient combustion and power production. This arrangement allows for vertical motion of pistons to be converted to rotary motion by the crankshaft.

The flywheel is attached to the crankshaft rear flange and has a toothed profile on its edge. This provides the link between the starter pinion and the crankshaft for starting the engine. This motion will also be distributed to other components such as water pumps, oil pumps and camshafts used to operate the valve gear. The most notorious flaws are cracks that have developed in the cylinder heads and blocks.

A routine repair must never be compared to an automotive restoration. While the former is a mere routine maintenance procedure, the latter is some form of art that aims at attaining the factory condition of a worn out car. If done to perfection, it ceases to be a mere restoration, the end product may be enrolled for concours d elegance shows and competitions.

The French noblemen of the seventeenth century are said to have founded this restoration revolution by forming a habit of parading luxury machines in public parks. The concours d elegance shows of today parade luxury brands of the past that have been gone over by highly skilled personnel. Equally important are the qualifications of judges assigned the task of identifying the most perfect machine on parade.

All entrants must identify the exact model they are submitting as well as the year of manufacture. The judges will then look up the company records and determine whether the automotive restorations conducted achieved the factory specifications for the model. These cars are very treasured possessions, sometimes being driven only on these occasions.




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