The Engine Reconditioning Process
Cylinder Block Machining
On completion of the cleaning and inspection process, core components are scheduled into batched model runs. Cylinder Blocks are machined on the latest CNC equipment, (as shown below), laser guided probes identify the exact bore centers and deck heights, using automated tooling changes the machine then rebores and mills the cylinder block to exacting original manufacturers specification. The cylinder bores are then honed; final block preparation includes rinsing to remove residues and machining swarf. Finally new gallery and welsh plugs are fitted.
Crankshafts are precision machined to the first available undersize using electronic automated measuring equipment. This ensures exacting tolerances are achieved every time. Oil holes are chamfered to improve lubrication to the journal surface before being micro polished. Oil gallery areas are thoroughly cleaned to remove any remain contaminates before the crankshaft makes its way to the assembly team.
Every camshaft is inspected for wear, dimensional accuracy and straightness. Camshafts that do not meet with the strict guidelines for reuse are disposed of and replaced with new. Reconditioned camshafts have the lobes re-profiled. Automated machines (as shown below) are used to ensure exacting tolerances are achieved every time. On completion of the machining process, every camshaft is Parco luberised this helps improve lubrication adhesion, this is especially important during the startup and running procedure.
Con Rod Reconditioning
Connecting rods are subject to a number of checks before reuse. Big and small end sizing, bend and twist are all checked. New small end bushes and tunnel resizing is carried out, as required, new pistons are fitted and the piston to rod alignment is checked.