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Volvo Penta D5A-TA Engine

The Volvo Penta D5A-TA is an industrial and marine-grade, in-line 4-cylinder, 4-stroke diesel engine. It features direct injection, turbocharging, and a charge air cooler (aftercooler). Engineered for heavy-duty applications (including marine propulsion, auxiliary gensets, pumps, cranes, and compressors) the engine is built around a robust cast-iron block and cylinder head with a press-hardened crankshaft. It incorporates wet-type replaceable cylinder liners to simplify overhaul procedures and maintain optimal thermal efficiency. The design focuses on operational reliability, high torque at low engine speeds, and straightforward service access under workshop conditions.

Valve Configuration: Overhead valve mechanism (OHV) driven by a camshaft via pushrods and rocker arms. Valves per Cylinder: 2 valves per cylinder (1 intake, 1 exhaust). Adjustment: Mechanical adjustment via adjustment screws on the rocker arms. Bore Diameter: 108 mm. Stroke Length: 130 mm. Total Displacement: 4.76 liters. Compression Ratio: 17.6:1.

Fuel System: High-pressure direct injection system utilizing individual unit injection pumps dedicated to each cylinder, connected via jacketed high-pressure fuel pipes for added safety. Injectors: Six-hole design nozzle injectors engineered to ensure fine atomization and opening at a specified pressure of 27.5 MPa. Fuel Delivery and Filtration: A mechanical fuel feed pump draws fuel through a primary water-separating pre-filter, routing it through a fine, spin-on type main fuel filter. Governance and Control: Equipped with a mechanical governor containing an integrated smoke delimiter/limiter to control transient emissions. Electronic governance (such as GAC or Heinzmann regulators) is utilized in variable-speed or generator sets. System shutdown is handled via a 24V fuel stopping solenoid.

Lubrication System: Forced feed lubrication system supplied by a positive-displacement, rotor-type lubrication oil pump. Filtration: Full-flow, spin-on type oil filters. Option for remote-mounted twin filters with a change-over valve for uninterrupted servicing in generator configurations. Cooling and Hardware: Features an integrated freshwater-cooled oil cooler to stabilize oil temperatures. Includes a heavy cast-iron shallow oil sump, an oil filler integrated into the valve cover, a manual oil drain pump, and a closed crankcase ventilation system to control blow-by emissions.

Cooling System: Liquid-cooled jacket utilizing a belt-driven freshwater circulation pump. The freshwater circuit also cools the turbocharger housing and the exhaust manifold. Heat Exchanger Configuration: Features an engine-mounted tubular heat exchanger with an integrated expansion tank. Seawater or raw water is driven through the exchanger via a gear-driven seawater pump. Keel Cooled Configuration: Designed as a 2-circuit keel cooling system utilizing a gear-driven low-temperature circuit pump and a belt-driven high-temperature circuit pump alongside an engine-mounted expansion tank.

General Technical Data

Engine Specifications

Engine Model ............... Volvo Penta D5A-TA
Engine Designation ............... D5A-TA
Engine Type ............... 4-stroke inline 4-cylinder direct injection liquid-cooled marine diesel
Number of Cylinders ............... 4
Cylinder Arrangement ............... In-line vertical
Engine Bore, in (mm) ............... 4.25 (108.0)
Engine Stroke, in (mm) ............... 5.12 (130.0)
Displacement, cu.in (L) ............... 290.7 (4.76)
Crankshaft Power (Rating 1), hp (kW) ............... 121 (89) at 1900 rpm
Crankshaft Power (Rating 2), hp (kW) ............... 139 (102) at 2300 rpm
Crankshaft Power (Rating 3), hp (kW) ............... 160 (118) at 2300 rpm
Rated Speed Range, rpm ............... 1900-2300
Idling Speed, rpm ............... 750-800
Maximum No-Load Speed, rpm ............... 2450-2550
Peak Torque at 1500 rpm (Rating 1), lb-ft (Nm) ............... 362 (490)
Peak Torque at 1500 rpm (Rating 2), lb-ft (Nm) ............... 362 (490)
Peak Torque at 1500 rpm (Rating 3), lb-ft (Nm) ............... 427 (579)
Compression Ratio ............... 17.6:1
Firing Order ............... 1-3-4-2
Aspiration Type ............... Turbocharged with charge air cooler
Direction of Rotation ............... Anti-clockwise viewed towards flywheel
Cylinder Block Material ............... High-strength cast iron
Cylinder Head Type ............... Single-piece cast iron crossflow design
Cylinder Liners Type ............... Replaceable wet-type centrifugal cast liners
Number of Main Bearings ............... 5
Engine Cooling ............... Freshwater heat exchanger system
Oil Filter Type ............... Full-flow spin-on cartridge and bypass spin-on cartridge
Oil Cooler Type ............... Tubular seawater-cooled integrated heat exchanger
Air Filter Type ............... Dry element pleated paper material
Emissions Certification ............... EU IWW, CCNR Stage 2, US EPA Tier 2
Electrical System ............... 12V
Alternator Capacity ............... 140A

Fuel System

Fuel Injection System ............... Direct injection with individual high-pressure unit pumps
Injection Pump Model ............... Bosch PF 33 L individual plug-in injection pumps
Injection Pump Type ............... Camshaft-driven roller-follower unit pumps
Number of Injection Pumps ............... 4 individual block-mounted units
Fuel Injector Type ............... Multi-hole nozzle configuration
Number of Injector Holes ............... 6 openings per tip assembly
Injector Opening Pressure, psi (MPa) ............... 3625-3770 (25.0-26.0)
Fuel Feed Pump Type ............... Mechanical gear-driven transfer pump
Fuel Feed Pump Delivery Pressure, psi (kPa) ............... 29-44 (200-300)
Primary Fuel Filter Element ............... Spin-on type with water separator unit
Secondary Fine Fuel Filter Element ............... Spin-on micro-filter cartridge
Fuel Pre-Filter Water Separator ............... Water-evacuation drain valve equipped
Fuel Lines Type ............... Double-walled high-pressure jacketed steel piping lines
Fuel Return Flow Rate, gal/h (L/h) ............... 15.8-21.1 (60.0-80.0)
Maximum Permissible Fuel Inlet Temperature, F (C) ............... 122 (50.0)
Recommended Fuel Grade ............... ASTM D975 1-D, 2-D, EN 590, JIS KK 2204
Governor Type ............... Mechanical centrifugal or electronic control unit option
Maximum Fuel System Suction Restriction, in Hg (kPa) ............... 5.9 (20.0)
Maximum Fuel Return Line Backpressure, in Hg (kPa) ............... 8.8 (30.0)
Fuel Injection Timing Advance Angle, degrees BTDC ............... 11.0-13.0
Hand Priming Pump ............... Plunger-type manual purge pump integrated

Dimensions and Weight

Overall Length (Bobtail Version), in (mm) ............... 39.4 (1000)
Overall Width (Heat Exchanger Configuration), in (mm) ............... 32.2 (820)
Overall Width (Keel Cooled Configuration), in (mm) ............... 29.5 (750)
Overall Height (Heat Exchanger Configuration), in (mm) ............... 39.4 (1000)
Overall Height (Keel Cooled Configuration), in (mm) ............... 46.6 (1185)
Length with ZF220 Reverse Gearbox, in (mm) ............... 53.8 (1365)
Dry Weight (Bobtail Base Unit), lbs (kg) ............... 1157 (525)
Dry Weight with Heat Exchanger, lbs (kg) ............... 1278 (580)
Dry Weight with Keel Cooling, lbs (kg) ............... 1234 (560)
Total Weight with ZF220 Gearbox, lbs (kg) ............... 1323 (600)

Maintenance Data

Service Information

Compression Pressure at 240 rpm, psi (MPa) ............... 362-435 (2.5-3.0)
Oil Pressure at Rated Speed, psi (kPa) ............... 51-65 (350-450)
Oil Pressure at Idle Speed, psi (kPa) ............... 15-22 (100-150)
Cooling Expansion Tank Cap Pressure, psi (kPa) ............... 7.3-10.1 (50.0-70.0)
Turbocharger Boost Pressure at Rated Speed, psi (kPa) ............... 17.4-20.3 (120.0-140.0)
Maximum Oil Temperature in Oil Pan, F (C) ............... 257 (125.0)
Operating Coolant Temperature Range, F (C) ............... 176-194 (80.0-90.0)
Thermostat Opening Start Temperature, F (C) ............... 167-172 (75.0-78.0)
Thermostat Full Open Temperature, F (C) ............... 189 (87.0)

Engine Oil and Coolant

Engine Oil Type .................. SAE 10W-30, SAE 10W-40, or 15W-40
API Service Classifications ......................... CH-4 or CI-4
Engine Oil Capacity (Total), gal (L) ............... 3.43 (13.0)
Engine Oil Capacity (Minimum Level), gal (L) ............... 2.37 (9.0)
Engine Oil Capacity (Maximum Level), gal (L) ............... 2.90 (11.0)
Coolant Capacity (Heat Exchanger System), gal (L) ............... 3.70 (14.0)
Coolant Capacity (Keel Cooled Block Only), gal (L) ............... 3.17 (12.0)

Service Intervals

Change oil and filter ............... Every 250 hours
Service air cleaner ............... Every 100 hours
Replace air cleaner ............... Every 500 hours
Replace fuel filter ............... Every 250 hours
Fuel system inspection ............... Every 1200 hours
Change coolant ............... Every 2000 hours
Compression test ............... Every 2000 hours
Replace drive belt ............... Every 400 hours
Replace impeller ............... Every 500 hours
Service heat exchanger ............... Every 800 hours

Service Specifications

Cylinder Liner Bore Inside Diameter, in (mm) ............... 4.2519-4.2527 (108.000-108.022)
Cylinder Liner Bore Maximum Diameter, in (mm) ............... 4.2559 (108.100)
Cylinder Liner Ovality Out-of-Roundness, in (mm) ............... 0.00078 (0.020)
Connecting Rod Small End Bushing I.D, in (mm) ............... 1.5755-1.5759 (40.018-40.028)
Connecting Rod Big End Bearing Bore, in (mm) ............... 2.7559-2.7566 (70.000-70.018)
Connecting Rod Bearing Clearance, in (mm) ............... 0.0014-0.0033 (0.036-0.084)
Connecting Rod Axial Side Play, in (mm) ............... 0.0039-0.0098 (0.100-0.250)
Main Bearing Shell Clearance, in (mm) ............... 0.0019-0.0039 (0.050-0.100)
Main Bearing Journal Diameter, in (mm) ............... 3.346 (85.0)
Crankpin Journal Diameter, in (mm) ............... 2.598 (66.0)
Crankshaft Axial End Play, in (mm) ............... 0.0039-0.0118 (0.100-0.300)
Piston Skirt Outside Diameter, in (mm) ............... 4.2464-4.2472 (107.860-107.880)
Piston-to-Cylinder Liner Clearance, in (mm) ............... 0.0047-0.0063 (0.120-0.160)
Piston Pin Bore Inside Diameter, in (mm) ............... 1.5749-1.5751 (40.003-40.008)
Piston Pin Outside Diameter, in (mm) ............... 1.5746-1.5748 (39.994-40.000)
Top Ring Side Clearance, in (mm) ............... 0.0035-0.0051 (0.090-0.130)
Second Ring Side Clearance, in (mm) ............... 0.0023-0.0039 (0.060-0.100)
Oil Ring Side Clearance, in (mm) ............... 0.0015-0.0031 (0.040-0.080)
Top Ring End Gap, in (mm) ............... 0.0118-0.0196 (0.300-0.500)
Second Ring End Gap, in (mm) ............... 0.0118-0.0196 (0.300-0.500)
Oil Ring End Gap, in (mm) ............... 0.0098-0.0177 (0.250-0.450)
Cylinder Head Distortion Max Surface Flatness, in (mm) ............... 0.0019 (0.050)
Cylinder Block Upper Deck Face Flatness Max, in (mm) ............... 0.0019 (0.050)
Intake Valve Stem Outside Diameter, in (mm) ............... 0.3523-0.3531 (8.950-8.970)
Exhaust Valve Stem Outside Diameter, in (mm) ............... 0.3511-0.3519 (8.920-8.940)
Valve Guide Inside Diameter, in (mm) ............... 0.3543-0.3551 (9.000-9.022)
Intake Valve Stem to Guide Clearance, in (mm) ............... 0.0011-0.0028 (0.030-0.072)
Exhaust Valve Stem to Guide Clearance, in (mm) ............... 0.0023-0.0040 (0.060-0.102)
Intake Valve Seat Angle, degrees ............... 30.0
Exhaust Valve Seat Angle, degrees ............... 45.0
Intake Valve Face Angle, degrees ............... 29.5
Exhaust Valve Face Angle, degrees ............... 44.5
Intake Valve Head Depth, in (mm) ............... 0.0275-0.0433 (0.700-1.100)
Exhaust Valve Head Depth, in (mm) ............... 0.0354-0.0511 (0.900-1.300)
Valve Springs Free Length, in (mm) ............... 2.362 (60.000)
Camshaft Journal Outside Diameter, in (mm) ............... 1.9665-1.9673 (49.950-49.970)
Camshaft Bushing Inside Diameter, in (mm) ............... 1.9685-1.9696 (50.000-50.028)
Camshaft Radial Bearing Clearance, in (mm) ............... 0.0051 (0.130)
Camshaft Axial End Play, in (mm) ............... 0.0019-0.0078 (0.050-0.200)
Cam Lobe Height (Intake), in (mm) ............... 1.4173 (36.000)
Cam Lobe Height (Exhaust), in (mm) ............... 1.4566 (37.000)
Rocker Arm Shaft Outside Diameter, in (mm) ............... 0.9830-0.9838 (24.970-24.990)
Rocker Arm Bushing Inside Diameter, in (mm) ............... 0.9842-0.9852 (25.000-25.025)
Idler Gear Bushing Inside Diameter, in (mm) ............... 1.3779-1.3789 (35.000-35.025)
Idler Gear Shaft Outside Diameter, in (mm) ............... 1.3763-1.3771 (34.960-34.980)
Idler Gear Bushing to Shaft Clearance, in (mm) ............... 0.00078-0.00255 (0.020-0.065)

Tightening Torques

Cylinder Head Bolts (Step 1), lb-ft (Nm) ............... 22 (30.0)
Cylinder Head Bolts (Step 2), lb-ft (Nm) ............... 59 (80.0)
Cylinder Head Bolts (Step 3), lb-ft (Nm) ............... 118 (160.0) + 90 deg turn
Main Bearing Cap Screws (Step 1), lb-ft (Nm) ............... 37 (50.0)
Main Bearing Cap Screws (Step 2), lb-ft (Nm) ............... 74 (100.0) + 90 deg turn
Connecting Rod Cap Bolts (Step 1), lb-ft (Nm) ............... 22 (30.0)
Connecting Rod Cap Bolts (Step 2), lb-ft (Nm) ............... 44 (60.0) + 60 deg turn
Flywheel Mounting Screws, lb-ft (Nm) ............... 44 (60.0) + 90 deg turn
Flywheel Housing Face Bolts (M10), lb-ft (Nm) ............... 33 (45.0)
Flywheel Housing Face Bolts (M12), lb-ft (Nm) ............... 55 (75.0)
Crankshaft Front Vibration Damper Bolt, lb-ft (Nm) ............... 147 (200.0) + 60 deg turn
Camshaft Thrust Plate Retainer Bolts, lb-ft (Nm) ............... 22 (30.0)
Camshaft Timing Gear Drive Bolt, lb-ft (Nm) ............... 63 (85.0)
Rocker Arm Shaft Support Bracket Bolts, lb-ft (Nm) ............... 33 (45.0)
Valve Adjusting Screw Locknuts Jam Nuts, lb-ft (Nm) ............... 15 (20.0)
Cylinder Head Plastic Rocker Cover Screws, lb-ft (Nm) ............... 7 (10.0)
Oil Pump Assembly Base Screws, lb-ft (Nm) ............... 22 (30.0)
Oil Pan Drain Plug Bolt, lb-ft (Nm) ............... 59 (80.0)
Oil Pan Perimeter Fixing Bolts, lb-ft (Nm) ............... 18 (25.0)
Oil Cooler Housing Core Attaching Bolts, lb-ft (Nm) ............... 18 (25.0)
Piston Cooling Oil Jet Nozzle Screws, lb-ft (Nm) ............... 11 (15.0)
Individual Injection Pump Unit Flange Nuts, lb-ft (Nm) ............... 22 (30.0)
Fuel Injection High-Pressure Line Union Nuts, lb-ft (Nm) ............... 22 (30.0)
Fuel Injector Hold-Down Clamp Bracket Bolt, lb-ft (Nm) ............... 22 (30.0)
Fuel Feed Pump Drive Housing Fasteners, lb-ft (Nm) ............... 18 (25.0)
Exhaust Manifold Heat Shield Nuts, lb-ft (Nm) ............... 33 (45.0)
Turbocharger Flange to Exhaust Manifold Studs, lb-ft (Nm) ............... 33 (45.0)
Turbocharger Compressor Housing Clamp Band, lb-ft (Nm) ............... 7 (10.0)
Freshwater Pump Body Pulley Assembly Bolts, lb-ft (Nm) ............... 22 (30.0)
Seawater Pump Bracket Stud Mounts, lb-ft (Nm) ............... 33 (45.0)
Thermostat Housing Cover Screws, lb-ft (Nm) ............... 18 (25.0)
Intake Manifold Air Plenum Cover Fasteners, lb-ft (Nm) ............... 18 (25.0)
Alternator Mounting Bracket Frame Base Anchor, lb-ft (Nm) ............... 37 (50.0)
Starter Motor Housing Mounting Flange, lb-ft (Nm) ............... 59 (80.0)
Oil Pressure Sensor Indicator Switch, lb-ft (Nm) ............... 15 (20.0)
Coolant Temperature Sensor Sender Brass Body, lb-ft (Nm) ............... 22 (30.0)
Crankcase Breather Separator Shell Cap Screws, lb-ft (Nm) ............... 7 (10.0)
Front Engine Support Foot Brackets, lb-ft (Nm) ............... 140 (190.0)
Rear Engine Mount Adapter Plates Flywheel Block, lb-ft (Nm) ............... 140 (190.0)
Air Intake Grid Heater Heating Element Stud, lb-ft (Nm) ............... 11 (15.0)
Fuel Pre-Filter Base Mounting Bracket Screw, lb-ft (Nm) ............... 18 (25.0)

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• Volvo Penta Engines Specs
  
• Volvo Penta D2-75F Specs
  
• Volvo Penta D3-130 Specs
  
• Volvo Penta D3-150 Specs
  
• Volvo Penta D3-160 Specs
  
• Volvo Penta D4-300 Specs
  

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