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Align boring

All engine blocks and cylinder heads reconditioned by PDM are subject to a thorough inspection.

The process

Align boring

During the inspection, a PDM specialist may discover excessive wear in the bearing saddle areas, or a misaligned main bearing or cam bearing tunnel. PDM's align boring machine is fully tooled to rectify all of these irregularities.

All parts in need of align boring will first have the caps precision ground. After cap grinding, all caps are returned to the engine block or cylinder head and torqued to the correct tension. The bearing tunnels are then precision machined to correct diameter and alignment.

—Where this sits

Stage 02 — precision machining

  1. 01
    Teardown & cleaning

    Complete disassembly, thermal and hot-tank cleaning, and inspection before any metal is cut.

  2. 02
    Precision machining

    Boring, honing, grinding and align boring — every cut indexed to a true relationship.

  3. 03
    Final assembly

    Careful assembly in a dedicated clean room, isolated from the rest of the operation.

→More from the shop

Also machined here.

01Block resurfacingMilled with ceramic or titanium-carbide tooling for optimum surface finish.View process →02Thermal & hot-tank cleaningClosed-loop, self-contained cleaning systems.View process →03Pressure testingHeads sealed, immersed, pressurised and inspected for leaks.View process →

All fifteen services →

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