2006 Volvo Penta D2-55 A/B/C, D2-75 A Workshop Manual (P/N 833038-3)

• Covers 2006 Volvo Penta D2-55 A/B/C and D2-75 A marine inboard engines, including variants with MS25L, HS25A, MS25S, and 130S transmissions.
• Official OEM publication P/N 833038-3, 2006 edition.
• Contains 108 pages of technical specifications, internal system schematics, and critical tolerances.
• Serves as the primary factory reference detailing turbocharger, fuel injection, and cooling system data.

Engine Systems and Maintenance Coverage

This workshop manual delivers the technical groundwork needed for maintaining and overhauling the 2006 Volvo Penta D2-55 and D2-75 series. It breaks down the design and function of the short block, cylinder head, fuel system, lubrication circuits, and electrical systems. Mechanics will find systematic descriptions covering the disassembly, inspection, and installation of major components like the crankshaft, camshaft, pistons, and valve gear. This level of detail ensures engine rebuilds align precisely with factory standards.

Specification and Data Highlights

The manual provides extensive tolerance charts and build parameters critical for shop-floor precision. For example, cylinder head bolt torque requires a strict three-stage tightening sequence to reach 100 ± 2.5 Nm. System capacities are also heavily detailed, noting 9.8 liters of coolant for the D2-75 and 9.5 liters for the D2-55. Valve clearances for both intake and exhaust must be set at 0.20 mm on a stationary, cold engine.

Beyond top-end work, the documentation highlights lower-end specifications such as the engine block main bearing radial clearance (0.044–0.102 mm) and upper compression ring gaps (0.20–0.35 mm). Electrical diagnostics are supported by sensor wiring diagrams for the 14V/60A alternator, alongside fuel pump timing angles and a factory-set idling speed of 850 ± 25 rpm.

Important safety notice: All specifications mentioned in this overview are examples for reference. Hands-on marine engine repair requires consulting the complete OEM documentation and must be performed using appropriate safety protocols to prevent equipment damage or personal injury.