Technical expertise & reverse engineering for classic automotive parts

Reverse engineering

Remanufacturing is not imitation. It is understanding.

With the rise of youngtimers and classic cars, many players have entered the parts remanufacturing market. Today, more parts are available, but there are also more problems: approximate shapes, unsuitable materials, incorrect tolerances or poorly understood specifications.

Since 2007, Mespiecesauto has been working to preserve automotive technical heritage: period drawings, manufacturer archives, technical documents, industrial contacts and specialist know-how. Finding reliable drawings or information can sometimes take one to two years for a single project.

We also work closely with former engineers, technicians and specialists connected to manufacturers and suppliers, who share part of their experience and knowledge with us.

At the beginning of each project, our work consists of gathering as much technical data as possible:
drawings, manufacturer archives, supplier documents, specialist publications or SAE archives (Society of Automotive Engineers).

This documentary research, combined with the network we have developed since 2007, allows us to move faster, but above all more accurately.

Technical advice

Listen, advise, guide

At Mespiecesauto, technical advice is not limited to choosing a part or finding a compatible reference. Our role is to ensure the overall consistency of a project, whether it is an engine rebuild, a return to original configuration or tuning.

Our knowledge of classic sports engines and vehicles, acquired over more than 20 years, allows us To advise is to understand the mechanical assembly, to identify what must be corrected and what should be changed according to your expectations and the technical requirements, so that a good part is fitted into a sound, consistent and clearly defined base. : its role, its constraints, its interactions with the other components and the possible consequences of a poor technical choice.

This overall view allows us to guide our customers on the essential operations, the points to check, the parts to improve when justified, but also the components that are best left original.

The goal is simple: build a reliable, consistent assembly and suited to the vehicle's use, without needlessly modifying what already works.

Our technical database, built up over more than 20 years, allows us to get to the bottom of every subject and confirm the essential points, even in the most complex cases. Every project has its own constraints : there are almost as many configurations as there are customers.

We can adapt an engine to a specific need, but any adaptation must respect its technical limits. It is precisely this work of analysis and balance that we carry out with you.

Observe, document, conclude

In mechanics, humility is essential: the more you learn, the more you realise how much remains to be understood. This is precisely why a failure must be approached methodically, without jumping to conclusions.

In mechanics, a breakage is not just a failure: it helps to understand the limits of an assembly, to identify a weakness, to confirm a hypothesis or to progress in making a unit more reliable. In powertrain development, the controlled destruction of parts or engines is even part of the validation process.

When facing a failure, conclusions are often reached too quickly. A broken part gets blamed, when it is sometimes only the visible consequence of the problem, not its real cause. A valve, a bearing shell, a piston, a camshaft or a gasket can fail as a result of a deeper fault: lubrication, temperature, mechanical clearance, assembly, material, excessive stress or incompatibility between several components.

At Mespiecesauto, engine failure analysis is part of our expertise, but also of our passion for mechanics. Every failure calls for a method: observe, question, cross-check the clues and avoid hasty conclusions.

Our role is to help you ask the right questions, with an approach that is both broad and precise. The goal is not to replace parts needlessly, but to identify the real cause of the problem, favouring simple, quick and inexpensive checks first.

Often, the solution is not found in the most spectacular element of the breakage, but in a detail: a trace of overheating, abnormal wear, excessive clearance, a contact mark, an assembly error or an inconsistency in the mechanical assembly. It is precisely this detail that makes it possible to understand the failure and prevent it from happening again.