Generac GP8000E Engine Engine
The Generac GP8000E is an engine rated at 3600 rpm. It powers generator sets from Generac, including the GP8000. It holds 1 L (0.3 gal) of oil.
Also known as: Generac GP8000E
Engine specifications
| Oil capacity | 1.0 L |
|---|
| Rated speed | 3600 rpm |
|---|
Generator sets powered by this engine
1Common problems
5- Recoil Cord Will Not Pull
Cause: BAD
Fix: TEST 49 – TEST RECOIL FUNCTION TEST 50 – TEST ENGINE FUNCTION REPAIR OR REPLACE - Engine ‘Hunts’ / Erratic Idle
Cause: NO SURGING STILL SURGING
Fix: TEST 29 – CHECK CARBURETION GOOD TEST 40 – CHECK AND ADJUST GOVERNOR - Engine Will Not Crank
Cause: NO VOLTAGE MEASURED 12 VDC MEASURED
Fix: RECHARGE OR REPLACE BATTERY – CLEAN, REPAIR OR REPLACE BAD CABLE(S) BAD REPLACE BAD GOOD NO VOLTAGE MEASURED BAD 12 VDC MEASURED REPLACE STARTER MOTOR IF DEFECTIVE GOOD CHECK FOR MECHANICAL BINDING OF THE ENGINE OR ROTOR - Engine Turns Over But Will Not Start
Cause: NO SPARK
Fix: TEST 39 – REMOVE WIRE 18 / SHUTDOWN LEAD NO SPARK GOOD BAD REPLACE SWITCH BAD CHECK ENGINE OIL LEVEL TEST 45 – CHECK OIL LEVEL SWITCH TEST 24 – TEST OFF-ON SWITCH REPLACE SWITCH REPLENISH OIL REPLACE LOW OIL ALARM GOOD OIL LEVEL O.K. OIL LEVEL LOW BAD - Engine Starts Hard and Runs Rough
Cause: ADJUST VALVES AND RETEST
Fix: BAD TEST 40 – CHECK AND ADJUST GOVERNOR TEST 38 – CHECK FLYWHEEL
Compiled from service & troubleshooting documentation across every generator set that uses the Generac GP8000E.
Maintenance schedule
| Item | Spec | Capacity | Part # | Interval | |
|---|
| Air filter | N/A | | — | 200 hr | find |
| Oil filter | Service Air Filter | | — | 200 hr | find |
| Oil | Oil Change Interval | 1.0 L | 0J00620106 | 100 hr | Amazon eBay $18.49 |
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 Generac GP8000E?
The Generac GP8000E engine has an oil capacity of 1.0 liters.
Which generators use the Generac GP8000E engine?
The Generac GP8000E powers 1 generator set(s), including Generac GP8000.
How often should you change the oil in the Generac GP8000E?
The Generac GP8000E oil change interval is every 100 hours.
What is a common problem with the Generac GP8000E engine?
A commonly reported issue on generators using the Generac GP8000E is: Recoil Cord Will Not Pull. Cause: BAD. Fix: TEST 49 – TEST RECOIL FUNCTION TEST 50 – TEST ENGINE FUNCTION REPAIR OR REPLACE.