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Engine - Visit into the heart of flatsix

Here are in few images, the restoration work we are doing to refurbish engines to new. All parts such as valves, cylinders and pistons are not changed systematically, but only if they are too worn, or if there are too much signs of degradation.
Restoration always begins with the dismantling and cleaning of all parts. Then control and observations can start. Enjoy your visit ....

For that engine, one notes the almost complete obstruation of the oil cooler by accumulation of dust and grease, wear of drive timing gear, such as worn oil pump gears.

Cylinders are too worn and Nikasil tears at the TDC, they will be changed. All metal parts are sand-blasted, which can highlight problems such as holes in oil tank for example.

Metal parts are first bichromated, then a baked epoxy paint is applied in order to give an excellent resistance to rust.
The engine cases are cleaned, especially lubricant circuits.

All studs are chromated or changed to new. Thoroughly tested, the crankshaft is cleaned and polished. Chain tensioners are reconditioned. Centrifugal advance and vacuum curves of the igniter are controlled on bench.

Main bearings, chains and timing gears are systematically changed. In this case, T-rods are new. Great care is also given to sealing, delicate point on this type of magnesium block.

New cylinders and pistons are mounted. Valve guides are systematically changed. Valve seats are corrected or changed depending on their condition and their dimensions.

After checking and adjusting, valves springs are reinstalled. Cylinder heads are then introduced. Then comes the turn of camshafts and rocker arms.

Once the distribution is adjusted, dressing of the engine can continue. Butterfly boxes are reconditioned, all rods are refurbished and the revised injection pump can be clamped.

Then, the engine is installed on a structure in order to make the startup and much of dynamic settings (ignition, butterflies, rods, fuel pressure), leakage checks, oil pressure, etc ...
Afterwards, the engine is mounted into the car for the next development step and run-in.