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Hatz 1D90 Engine

General Technical Data

Engine Specifications

Engine Model ............... Hatz 1D90
Engine Type ............... 4-stroke single-cylinder direct-injection air-cooled diesel engine
Number of Cylinders ............... 1
Cylinder Arrangement ............... Vertical inline
Engine Bore, in (mm) ............... 4.09 (104.0)
Engine Stroke, in (mm) ............... 3.35 (85.0)
Displacement, cu.in (cc) ............... 44.06 (722.0)
Rated Engine Power, hp (kW) ............... 8.6-15.0 (6.4-11.2)
Maximum Engine Power, hp (kW) ............... 15.0 (11.2)
Minimum Operating Power, hp (kW) ............... 7.8 (5.8)
Rated Engine Speed, rpm ............... 1500-3000
Maximum Engine Speed, rpm ............... 3600
Peak Torque, lb-ft (Nm) ............... 30.0 (40.7) at 2000-2200 rpm
Low Idle Speed, rpm ............... 850-950
High Idle Speed, rpm ............... 3150-3250
Aspiration Type ............... Naturally aspirated
Operating Speed, rpm ............... 1500-3000
Compression Ratio ............... 20.5:1
Direction of Rotation ............... Counter-clockwise looking at the flywheel face
Combustion Principle ............... Direct injection multi-hole nozzle configuration
Valve Train Operation ............... Push-rods and rocker arms driven by gear-supported camshaft
Crankshaft Bearings ............... Plain journal bearings with steel-backed shells
Connecting Rod Bearings ............... Plain babbitt-lined split-journal shells
Exhaust System ............... Built-in noise-attenuating silencer integrated to air cowling
Cylinder Block Material ............... High-strength diecast light alloy crankcase
Cylinder Material ............... Separate grey cast iron cylinder block
Cylinder Head Material ............... High-temperature light alloy
Lubrication System ............... Full-pressure lubrication with gear pump
Oil Pump Type ............... Gear-driven positive displacement pump
Oil Filter Type ............... Optional full-flow spin-on cartridge filter
Cooling System ............... Forced air cooling via flywheel fan blown arrangement
Air Cleaner Type ............... Dry dual-stage element with integrated maintenance indicator
Emissions Certification ............... EU Stage V and US EPA Tier 4 Final compliance standards
Starting System ............... Electric starter motor or hand crank manual mechanism
Electrical System ............... 12V or 24V options

Fuel System

Injection Pump Type ............... Integrated single-plunger high-pressure unit pump
Injection Pump Drive ............... Driven directly by specialized extra cam on camshaft
Injection Nozzle Type ............... Multi-hole standard pintle nozzle assembly
Injection Opening Pressure, psi (bar) ............... 3190-3480 (220-240)
Fuel Feed Pump Type ............... Mechanical diaphragm lift pump driven via cam
Governor Type ............... Mechanical centrifugal governor with speed regulation options
Fuel Filter System ............... Replaceable spin-on fine element with water separator trap
Fuel Specification Standard ............... EN 590, BS 2869 A1/A2, ASTM D 975-09a
Maximum Fuel Suction Height, ft (m) ............... 3.28 (1.00)
Maximum Fuel Return Flow Line Backpressure, psi (bar) ............... 2.9 (0.2)
Fuel Tank Capacity (Standard Integral), gal (L) ............... 1.85 (7.0)
Fuel Filter Micron Rating, microns ............... 4-5 microns fine separation threshold
Fuel Delivery Pressure from Lift Pump, psi (bar) ............... 4.3-5.8 (0.3-0.4)
Injection Timing, degrees BTDC ............... 11-13
Bleeder Valve Type ............... Manual needle valve integrated on injection pump
Extra Fuel Device Operation ............... Automatic spring-loaded enrichment system
Fuel Supply Connection Diameter, in (mm) ............... 0.315 (8.0)
Fuel Return Connection Diameter, in (mm) ............... 0.236 (6.0)

Dimensions and Weight

Overall Length (Model S), in (mm) ............... 15.6 (395)
Overall Length (Model C), in (mm) ............... 21.8 (555)
Overall Length (Model V), in (mm) ............... 17.5 (445)
Overall Width (Model S), in (mm) ............... 20.3 (515)
Overall Width (Model C), in (mm) ............... 21.5 (545)
Overall Width (Model V), in (mm) ............... 20.1 (510)
Overall Height (Model S), in (mm) ............... 21.6 (550)
Overall Height (Model C), in (mm) ............... 24.2 (615)
Overall Height (Model V), in (mm) ............... 21.4 (545)
Dry Weight (Model S), lbs (kg) ............... 234 (106)
Dry Weight (Model Z), lbs (kg) ............... 238 (108)
Dry Weight (Model W), lbs (kg) ............... 238 (108)
Dry Weight (Model V), lbs (kg) ............... 234 (106)
Dry Weight (Model C), lbs (kg) ............... 278 (126)

Maintenance Data

Service Information

Oil Pressure at Low Idle, psi (bar) ............... 8.7 (0.6)
Oil Pressure at Rated Speed, psi (bar) ............... 29.0 (2.0)
Lubricating Oil Temperature, F (C) ............... 266 (130)
Intake Valve Clearance (Cold), in (mm) ............... 0.0118 (0.30)
Exhaust Valve Clearance (Cold), in (mm) ............... 0.0118 (0.30)

Engine Oil

Engine Oil Type .................. SAE 5W-30, SAE 10W-30, 10W-40
API Service Classifications ......................... CK-4 or CJ-4
Engine Oil Capacity (Maximum Level), qt (L) ............... 1.69 (1.60)
Engine Oil Capacity (Minimum Level), qt (L) ............... 0.95 (0.90)

Service Intervals

Change engine oil ............... Every 250 hours
Clean oil filter ............... Every 250 hours
Replace fuel filter ............... Every 500 hours
Service air filter ............... Every 500 hours
Valve-lash adjustment ............... Every 250 hours
Check fuel system ............... Every 500 hours
Compression test ............... Every 1000 hours
Replace breather valve ............... Every 1000 hours
Belt inspection ............... Every 100 hours

Service Specifications

Cylinder Bore Inside Diameter, in (mm) ............... 4.0945-4.0953 (104.000-104.020)
Cylinder Bore Maximum Taper in (mm) ............... 0.0019 (0.05)
Cylinder Bore Maximum Out of Roundness, in (mm) ............... 0.0059 (0.150)
Connecting Rod Big End Journal Clearance, in (mm) ............... 0.0016-0.0031 (0.040-0.080)
Main Bearing Journal Clearance, in (mm) ............... 0.0020-0.0035 (0.050-0.090)
Main Bearing Journal Outside Diameter, in (mm) ............... 2.7559-2.7565 (70.000-70.015)
Crankshaft Crankpin Journal Diameter, in (mm) ............... 2.3622-2.3628 (60.000-60.015)
Crankshaft Axial End Play, in (mm) ............... 0.0039-0.0079 (0.100-0.200)
Piston Skirt Outside Diameter, in (mm) ............... 4.0905-4.0913 (103.900-103.920)
Piston to Cylinder Wall Clearance, in (mm) ............... 0.0031-0.0045 (0.080-0.115)
Piston Pin Bore Inside Diameter, in (mm) ............... 1.2598-1.2602 (32.000-32.010)
Piston Pin Outside Diameter, in (mm) ............... 1.2594-1.2596 (31.990-31.995)
Piston Pin to Small End Bushing Clearance, in (mm) ............... 0.0004-0.0009 (0.010-0.023)
Top Ring Groove Side Clearance, in (mm) ............... 0.0024-0.0039 (0.060-0.100)
Second Ring Groove Side Clearance, in (mm) ............... 0.0016-0.0031 (0.040-0.080)
Oil Ring Groove Side Clearance, in (mm) ............... 0.0012-0.0028 (0.030-0.070)
Top Ring End Gap, in (mm) ............... 0.0118-0.0197 (0.300-0.500)
Second Ring End Gap, in (mm) ............... 0.0118-0.0197 (0.300-0.500)
Oil Ring End Gap Limit, in (mm) ............... 0.0098-0.0177 (0.250-0.450)
Intake Valve Stem Outside Diameter, in (mm) ............... 0.3543-0.3549 (9.000-9.015)
Exhaust Valve Stem Outside Diameter, in (mm) ............... 0.3539-0.3545 (8.990-9.005)
Intake Valve Guide Inner Diameter, in (mm) ............... 0.3555-0.3563 (9.030-9.050)
Exhaust Valve Guide Inner Diameter, in (mm) ............... 0.3555-0.3563 (9.030-9.050)
Intake Valve Stem to Guide Clearance, in (mm) ............... 0.0006-0.0020 (0.015-0.050)
Exhaust Valve Stem to Guide Clearance, in (mm) ............... 0.0010-0.0024 (0.025-0.060)
Intake Valve Head Recession, in (mm) ............... 0.0275-0.0433 (0.700-1.100)
Exhaust Valve Head Recession, in (mm) ............... 0.0275-0.0433 (0.700-1.100)
Valve Spring Free Length in (mm) ............... 1.9685 (50.000)
Camshaft Journal Clearance, in (mm) ............... 0.0012-0.0028 (0.030-0.070)
Camshaft Journal Diameter, in (mm) ............... 1.9685-1.9691 (50.000-50.015)

Tightening Torques

Cylinder Head Nuts (1-Step), lb-ft (Nm) ............... 22.1 (30.0)
Cylinder Head Nuts (2-Step), lb-ft (Nm) ............... 44.2 (60.0)
Cylinder Head Nuts (3-Step), lb-ft (Nm) ............... 66.4 (90.0)
Connecting Rod Cap Bolts (1-Step), lb-ft (Nm) ............... 14.7 (20.0)
Connecting Rod Cap Bolts (2-Step), lb-ft (Nm) ............... 36.9 (50.0)
Flywheel Retaining Central Nut, lb-ft (Nm) ............... 258.1 (350.0)
Crankcase Split-Line Perimeter Bolts, lb-ft (Nm) ............... 16.2 (22.0)
Crankcase Main Support Tie Bolts, lb-ft (Nm) ............... 33.2 (45.0)
Engine Oil Drain Plug, lb-ft (Nm) ............... 36.9 (50.0)
Engine Oil Pressure Sensor Switch, lb-ft (Nm) ............... 14.7 (20.0)
Injection Pump Flange Nut, lb-ft (Nm) ............... 18.4 (25.0)
Injection Nozzle Hold-Down Bracket Bolt, lb-ft (Nm) ............... 20.6 (28.0)
Injection High Pressure Line Union Nuts, lb-ft (Nm) ............... 22.1 (30.0)
Cylinder Head Valve Cover Capscrews, lb-ft (Nm) ............... 7.4 (10.0)
Timing Gear Housing Cover Fasteners, lb-ft (Nm) ............... 8.8 (12.0)
Rocker Shaft Support Mounting Bolt, lb-ft (Nm) ............... 29.5 (40.0)
Camshaft Retaining Thrust Flange Screws, lb-ft (Nm) ............... 8.8 (12.0)
Governor Housing Cover Retention Screws, lb-ft (Nm) ............... 7.4 (10.0)
Fuel Feed Diaphragm Pump Flange Nuts, lb-ft (Nm) ............... 16.2 (22.0)
Fuel Tank Base Cradle Mounting Bolts, lb-ft (Nm) ............... 18.4 (25.0)
Exhaust Silencer Cowling Mounting Nuts, lb-ft (Nm) ............... 24.3 (33.0)
Air Intake Manifold Port Connection Bolts, lb-ft (Nm) ............... 8.8 (12.0)
Dry Air Cleaner Housing Frame Bolts, lb-ft (Nm) ............... 16.2 (22.0)
Electric Starter Motor Flange Mounting Studs, lb-ft (Nm) ............... 33.2 (45.0)
Flywheel Charging Alternator Stator Fasteners, lb-ft (Nm) ............... 7.4 (10.0)
Speed Control Adjustment Lever Pivot Nut, lb-ft (Nm) ............... 11.1 (15.0)
Oil Pump Casing Counter-sunk Screws, lb-ft (Nm) ............... 7.4 (10.0)
Engine Support Base Mounting Foot Bolts, lb-ft (Nm) ............... 62.7 (85.0)
Breather Valve Assemblies Retention Covers, lb-ft (Nm) ............... 4.4 (6.0)
Decompression Axle Lever Pivot Lock Nut, lb-ft (Nm) ............... 8.8 (12.0)
Auxiliary Side Power Take Off Flange Screws, lb-ft (Nm) ............... 16.2 (22.0)
Oil Filter Spin-On Adaptor Spindle Fitting, lb-ft (Nm) ............... 25.8 (35.0)

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• Hatz Engines Specs
  
• Hatz 1D90E Specs
  
• Hatz 1D90V Specs
  
• Hatz 1D90Z Specs
  

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