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Ishikawajima Shibaura Machinery 1.0L Diesel Engine Engine
The Ishikawajima Shibaura Machinery 1.0L Diesel is a 0.95 L 3-cylinder engine rated at 1950 rpm, producing up to 9.7 kW. It powers generator sets from Generac, including the QUIETPACT 75. It holds 3.5 L (0.9 gal) of oil and 5.3 L (1.4 gal) of coolant.
Also known as: 1.0L Diesel, Ishikawajima Shibaura Machinery Co., Ltd. 1.0L Diesel
Engine specifications
| Oil capacity | 3.5 L |
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| Coolant capacity | 5.3 L |
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| Displacement | 0.954 L |
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| Cylinders | 3 |
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| Rated speed | 1950 rpm |
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| Gross power | 9 kW |
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Generator sets powered by this engine
1Common problems
7- There is no AC output from the generator.
Cause: 1. Main-line circuit breaker open 2. Fault with vehicle circuit
Fix: 1. Reset line breaker to ON (or closed). 2. Reset and replace, if necessary. - The Start/Stop switch is set to Stop, but the engine continues to run.
Cause: 1. Defective Start/Stop switch 2. Open/Disconnected #18 wire between Start/Stop switch and engine control board 3. Open/Disconnected #0 wire between Start/Stop switch and engine control board
Fix: 1. Replace switch. 2. Reconnect or close wire. 3. Reconnect or close wire. - The engine will not crank.
Cause: 1. System control fuse blown 2. Loose corroded or defective battery cables as necessary. 3. Defective engine Start/Stop switch 4. Defective starter contactor 5. Defective starter motor 6. Low or defective battery 7. Defective engine control board
Fix: 1. Replace fuse. 2. Tighten, clean, or replace, as necessary. 3. Replace Start/Stop switch. 4. Replace contactor. 5. Replace starter motor. 6. Charge or replace battery. 7. Replace control board. - The engine starts, but shuts down when the Start/Stop switch is released.
Cause: 1. Low engine oil level 2. Overheated engine 3. Defective Start/Stop Switch 4. Defective low-oil pressure switch 5. Defective high-coolant temperature switch 6. No AC output 7. Defective engine control board
Fix: 1. Check oil and add oil, as needed. 2. Check cooling system for leaks. 3. Disconnect Remote Harness on panel or remote Start/Stop Check/Replace Start/Stop Switch 4. Replace pressure switch. 5. Replace temperature switch. 6. Contact a Generac Authorized Service Dealer 7. Replace control board. - The engine starts hard and runs rough.
Cause: 1. Plugged or damaged air filter 2. Defective fuel pump (FP) 3. Plugged fuel filter or fuel line 4. Water in fuel
Fix: 1. Check, clean, or replace, as needed. 2. Repair or replace fuel pump. 3. Clean or replace fuel filter or line. 4. Drain fuel system and refill. - The engine cranks but will not start.
Cause: 1. Vehicle fuel shutoff valve closed 2. Out of fuel 3. Defective fuel solenoid (FS) 4. Defective fuel pump (FP) 5. Open #14 wire from engine control board insulation of #14 wires. 6. Plugged fuel filter or fuel line 7. Engine mechanical parts failure
Fix: 1. Open valve, if so equipped. 2. Replenish fuel. 3. Replace solenoid. 4. Repair or replace fuel pump. 5. Check connections and insulation of #14 wires. 6. Clean or replace fuel filter or line. 7. Repair or replace parts. - ENGINE WILL NOT CRANK 7.5 AMP (F1) FUSE BLOWING
Compiled from service & troubleshooting documentation across every generator set that uses the Ishikawajima Shibaura Machinery 1.0L Diesel.
Maintenance schedule
| Item | Spec | Capacity | Part # | Interval | |
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| Air filter | Disposable Filter | | 004880 | 500 hr | PartsGeek |
| Fuel filter | | | 069858 | 400 hr | Amazon eBay $40.00 PartsGeek |
| Oil filter | Full Flow with Bypass Valve | | 126-70939 | 250 hr | Amazon eBay PartsGeek |
| Belt | Alternator Drive / Cooling Fan Drive Belts | | 0C5298 | 750 hr | PartsGeek |
| Coolant | 50:50 mixture low silicate ethylene glycol and soft water | 5.3 L | — | 500 hr | |
| Oil | | 3.5 L | — | 250 hr | |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
Common questions
What is the oil capacity of the Ishikawajima Shibaura Machinery 1.0L Diesel?
The Ishikawajima Shibaura Machinery 1.0L Diesel engine has an oil capacity of 3.5 liters.
What is the displacement of the Ishikawajima Shibaura Machinery 1.0L Diesel?
The Ishikawajima Shibaura Machinery 1.0L Diesel has a displacement of 0.954 liters with 3 cylinders.
Which generators use the Ishikawajima Shibaura Machinery 1.0L Diesel engine?
The Ishikawajima Shibaura Machinery 1.0L Diesel powers 1 generator set(s), including Generac QUIETPACT 75.
How often should you change the oil in the Ishikawajima Shibaura Machinery 1.0L Diesel?
The Ishikawajima Shibaura Machinery 1.0L Diesel oil change interval is every 250 hours.
What is a common problem with the Ishikawajima Shibaura Machinery 1.0L Diesel engine?
A commonly reported issue on generators using the Ishikawajima Shibaura Machinery 1.0L Diesel is: There is no AC output from the generator.. Cause: 1. Main-line circuit breaker open 2. Fault with vehicle circuit. Fix: 1. Reset line breaker to ON (or closed). 2. Reset and replace, if necessary..