Honda Magna VF750C, Service Manual

Page: 58 / 306

4.
Lubrication System
Service Information
Troubleshooting 4-1
4-1
4-2
Oil Pump Removal/Installation
Oil Pump Disassembly
I
Assembly
4-3
4-4
Lubrication System Diagram
Service Information
•
If the engine must be running to do some work, make sure the area is well ventilated. Never run the engine in an
enclosed area. The exhaust contains poisonous carbon monoxide gas that can cause loss of consciousness and
may lead to death. Run the engine in an open area or with an exhaust evacuation system in an enclosed area.
•
Used engine oil may cause skin cancer if repeatedly left in contact with the skin prolonged periods.
Although this is unlikely unless you handle used oil on a daily basis, it is still advisable to thoroughly wash your
hands with soap and water as soon as possible after handling used oil. KEEP OUT OF REACH OF CHILDREN.
•
The oil pump can be serviced with the engine insta l led i n the frame.
•
For oil pressu re check, refer to section 4 of the Common Service Manual; for the switch location, see page
1 8-2
of this
manual
•
The service procedu res i n this section must be performed with the engine oil dra ined.
•
When removing and insta l l i ng the oil pu m p use
c
are not to allow dust or dirt to enter the engi ne.
•
If a ny portion of the oil pump is worn beyond the specified service l i mits, replace the oil pump as a n assem bly.
•
After the oil pump has been insta lled check that there a re no oil leaks and that oil pressu re is correct.
Troubleshooting
Oil Level Low
•
Oil consumption
•
External oil leak
•
Worn piston ring or i ncorrect piston ring instal lation
•
Worn valve g u ide or seal
Low Or No Oil Pressure
•
Clogged oil orifice
•
I ncorrect oil being used
No Oil Pressure
•
Oil level too low
•
Oil pump d rive chain or sprocket broken
•
Oil pump damaged (rotor shaft)
•
I nternal oil leaks
Low Oil Pressure
•
Clogged oil stra iner screen
•
Oil pump worn or damaged
•
Internal oil leak
•
Pressu re relief va lve stuck open
•
I ncorrect oil being used
•
Low oil level
High Oil Pressure
•
Plugged oil fi lter, gallery, or metering orifice
•
Pressu re relief valve stuck closed
•
I ncorrect oil being used
4- 1