Service Manual
Table Of Contents
- 2008 RANGER RZR SERVICE MANUAL
- GENERAL INFORMATION
- MAINTENANCE
- PERIODIC MAINTENANCE CHART
- COMPONENT INSPECTION / SERVICE LOCATIONS
- LUBRICANTS / SERVICE PRODUCTS
- MAINTENANCE REFERENCES
- GENERAL VEHICLE INSPECTION AND MAINTENANCE
- FUEL SYSTEM AND AIR INTAKE
- ENGINE
- TRANSMISSION AND GEARCASES
- COOLING SYSTEM
- FINAL DRIVE / WHEEL AND TIRE
- ELECTRICAL AND IGNITION SYSTEM
- STEERING AND SUSPENSION
- BRAKE SYSTEM
- ENGINE
- ENGINE SPECIFICATIONS
- ENGINE COOLING SYSTEM
- GENERAL ENGINE SERVICE
- ENGINE DISASSEMBLY AND INSPECTION
- Cylinder Head Assembly Exploded View
- Rocker Arms
- Push Rods
- Cylinder Head Removal
- Cylinder Head Inspection
- Cylinder Head Warp
- Valve Seal / Spring Service (On Engine)
- Cylinder Head Disassembly
- Valve Inspection
- Combustion Chamber
- Valve Seat Reconditioning
- Cylinder Head Reassembly
- Valve Sealing Test
- Cylinder Removal
- Valve Lifter Removal / Inspection
- Piston Removal
- Cylinder Inspection
- Cylinder Hone Selection and Honing Procedure
- Honing To Deglaze
- Cleaning the Cylinder After Honing
- Piston-to-Cylinder Clearance
- Piston / Rod Inspection
- Piston Ring Installed Gap
- Starter Drive Bendix Removal / Inspection
- Flywheel / Stator Removal / Inspection
- Engine Crankcase Disassembly / Inspection
- Camshaft Inspection
- ENGINE REASSEMBLY
- ENGINE INSTALLATION
- TROUBLESHOOTING
- ELECTRONIC FUEL INJECTION
- GENERAL INFORMATION
- FUEL TANK
- ELECTRONIC FUEL INJECTION
- ELECTRONIC CONTROL UNIT (ECU)
- TEMPERATURE AND BAROMETRIC AIR PRESSURE SENSOR (T-BAP)
- CRANKSHAFT POSITION SENSOR (CPS)
- FUEL INJECTORS
- FUEL PUMP
- FUEL PRESSURE REGULATOR
- THROTTLE POSITION SENSOR (TPS)
- ENGINE COOLANT TEMPERATURE SENSOR (ECT)
- IGNITION COIL
- GENERAL TROUBLESHOOTING
- EFI SYSTEM BREAKOUT DIAGRAMS
- Diagnostic Connector Circuit
- Malfunction Indicator Lamp (MIL) Circuit
- Fuel Injector (PTO) Circuit
- Fuel Injector (MAG) Circuit
- Engine Coolant Temperature Sensor (ECT) Circuit
- Engine Overheat Lamp Driver Circuit
- Crankshaft Position Sensor (CPS) Circuit
- Air Temperature and Barometric Air Pressure Sensor (T-BAP) Circuit
- Throttle Position Sensor (TPS) Circuit
- Fuel Pump Circuit
- BODY / STEERING / SUSPENSION
- CLUTCHING
- FINAL DRIVE
- TRANSMISSION
- BRAKES
- GENERAL SPECIFICATIONS
- TORQUE SPECIFICATIONS
- SPECIAL TOOLS
- BRAKE SYSTEM SERVICE NOTES
- BRAKE NOISE TROUBLESHOOTING
- HYDRAULIC BRAKE SYSTEM OPERATION
- BRAKE SYSTEM EXPLODED VIEW
- MASTER CYLINDER
- BRAKE PEDAL LEVER
- BRAKE BLEEDING / FLUID CHANGE
- FRONT BRAKE PADS
- FRONT CALIPER SERVICE
- FRONT BRAKE DISC
- REAR BRAKE PAD
- REAR CALIPER SERVICE
- REAR BRAKE DISC
- TROUBLESHOOTING
- ELECTRICAL
- General Information
- Switches / Controls
- Instrument Cluster
- Instrument Cluster Troubleshooting Tests
- All Wheel Drive Coil
- Gear Position Indicator Switch
- Speed Sensor
- Head Lights
- Tail / Brake / Work Lights
- Cooling System Schematic
- EFI Diagnostics
- Fuel Sender
- Relays
- Fuse Box Layout
- Fuses / Circuit Breaker
- Charging System
- Battery Service
- Conventional Battery
- Low Maintenance Battery
- Starting System
- Starting System Testing Flow Chart
- Electrical BreakOut Diagrams
- INDEX
- WIRE DIAGRAMS
3.26
ENGINE
Cylinder Head Inspection
Thoroughly clean cylinder head surface to remove all traces of
gasket material and carbon.
Cylinder Head Warp
1. Lay a straight edge (A) across the surface of the cylinder
head (B) at several different points and measure warp by
inserting a feeler gauge between the straight edge and the
cylinder head surface. If warp exceeds the service limit,
replace the cylinder head.
Valve Seal / Spring Service (On Engine)
NOTE: The following procedure is only for servicing
the top end of the valve train when replacing valve
springs or replacing valve seals.
In some cases the valve train can be serviced while the cylinder
head is still on the engine. Keep all parts in order with respect
to their location in the cylinder head.
1. Having already removed the valve cover, rocker arms and
pushrods, align the cylinder to be worked on at top dead
center (TDC). Install the Valve Pressure Hose (PU-
45652) into the spark plug hole. Hook the hose to an air
compressor and supply 50 to 100 psi to the hose. This will
seat the valves during valve spring removal. Do not
remove air from the hose at anytime until reassembly is
completed.
2. Using the Valve Spring Compressor (PU-45257),
compress the valve spring and remove the valve keepers.
NOTE: A small parts magnet (A) can aid in the
removal of the retainers (B).
NOTE: To prevent damage to the valve seals, do not
compress the valve spring more than is needed to
remove the valve keepers.
3. Remove spring retainer and spring.
4. The valve seals are now serviceable.
CAUTION
Use care not to damage sealing surface.
= In. / mm.
Cylinder Head Warp Limit:
.004" (.1016 mm) max
A
B
Measure at different
points on the surface.
WARNING
Wear eye protection or a face shield during
cylinder head disassembly and reassembly.
A
B
PU-45257