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Shire 70 Keel-Cooled Narrowboat Marine Diesel Engine
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Shire 70 Narrowboat Specs
| Manufacturer / Brand | E.P. Barrus (Shire Marine) |
| Model Designation | Shire 70 Keel-Cooled |
| Engine Type | 4-Stroke Flagship High-Power Narrowboat Marine Diesel |
| Cylinder Configuration | Inline-4 |
| Total Displacement | 3.3 Liters (203 cu in) |
| Bore x Stroke | 98.0 x 110.0 mm (3.86 x 4.33 in) |
| Aspiration & Charge Air | Turbocharged with Wastegate and Water-Cooled Exhaust Manifold |
| Cooling System Architecture | Keel-Cooled Heavy-Duty Closed Skin-Tank System with High-Volume Pump |
| Continuous Power Rating (P1) | 63 BHP (47 kW) @ 2,400 RPM |
| Maximum / Intermittent Power (P3/P4) | 70 BHP (52 kW) @ 2,500 RPM |
| Fuel Injection Platform | Mechanical Direct Fuel Injection with In-Line Multi-Plunger Pump and Governor |
| Cylinder Head Metallurgy | Monobloc Cast Iron Cylinder Block with Cast Iron Overhead Valve (OHV) Cylinder Head |
| Cylinder Liners | Cast Iron Engine Block with Integrated Parent Bores |
| Flywheel Housing & Flywheel | SAE 4 Housing with Heavy Torsional Marine Damper Plate |
| Electrical System & Ground | 12V Negative Ground Marine Electrical System |
| Starter & Alternator Output | 12V 2.5 kW Electric Starter / Dual Alternators (12V 50A Starter + 12V 240A Domestic) |
| Lube Oil Sump Capacity | 10.5 Liters (2.77 US gal) |
| Engine Coolant Capacity | 11.5 Liters (3.04 US gal) |
| Dry Weight (excl. gearbox) | 285 kg (628 lbs) |
| Overall Dimensions (L x W x H) | 875 x 560 x 715 mm (34.4 x 22.0 x 28.1 in) |
| Emissions Certification | RCD 2 (Directive 2013/53/EU) / EPA Tier 4 / EU Stage V Non-Road |
| Fuel Compatibility | Ultra-Low Sulfur Diesel (ULSD No. 2), Automotive Diesel (EN 590), B7 Biodiesel |
| Transmission / Outdrive Compatibility | Bare Engine Bobtail Keel-Cooled - Compatible with PRM (PRM 280 / PRM 500) and Twin Disc Hydraulic Transmissions |
| Factory Warranty Period | E.P. Barrus Shire 3-Year Limited Inland Leisure / 2-Year Commercial Warranty |
| Application Research | Flagship widebeam liveaboards (up to 70 ft x 14 ft), tidal river navigation barges, commercial passenger tour boats, freight push-tugs, and full-electric serial hybrid narrowboat charge plants. |
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