Lubrication System - Honda Magna VF750C Service Manual

Service Information
Troubleshooting
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
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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 for prolonged periods.
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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 o i l p u m p can be serviced with the engine i n sta l led i n the frame.
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For o i l pressu re check, refer to section 4 of the Common Service M a n u a l ; for the switch l ocation, see page
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m a n u a l
The service procedu res i n this section mu st be performed with the engine o i l dra i ned.
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When removi ng a nd i n sta l l i ng the o i l pu m p use
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If a ny portion of the o i l p u m p is worn beyond the specified service l i m its, replace the o i l p u m p as a n assem bly.
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After the o i l p u m p has been i n sta l led check that there a re no o i l leaks and that o i l pressu re is correct.
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Troubleshooting
Oil Level Low
O i l cons u m ption
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External o i l leak
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Wo rn pisto n ring or i ncorrect piston ring i n sta l lation
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Worn va lve g u ide or sea l
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Low Or No Oil Pressure
Clogged o i l orifice
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I nco rrect o i l being used
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No Oil Pressure
O i l level too low
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O i l p u m p d rive chain or sprocket broken
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O i l p u m p damaged ( rotor shaft)
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I nternal o i l leaks
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4.
Lubricatio n System
4- 1
Oil Pump Removal/Installation
Oil Pump Disassembly I Assembly
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4-2
c
a re not to a l l ow dust or d i rt to enter the engi ne.
Low Oil Pressure
Clogged o i l stra i ner screen
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O i l p u m p worn or damaged
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I ntern a l oil leak
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Pressu re rel i ef va lve stuck open
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I ncorrect o i l bei n g used
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Low oil level
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High Oil Pressure
Plugged o i l fi lter, gallery, or metering orifice
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Pressu re rel i ef va lve stuck closed
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I ncorrect o i l bein g used
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4-3
4-4
of this
1 8-2
4- 1