Oil Pressure; Panel Kit With Key Switch And Solenoid - Vanguard OHV V-Twin User Manual

Oil Pressure

Test Switch
Use Digital Multimeter #19464. Set meter to test for
continuity.
Remove pressure switch. Connect one tester lead to
the switch terminal and the other lead to the metal
body of the switch, Fig. 48. The tester should
indicate CONTINUITY when no pressure is applied
to the switch. The switch should OPEN (no
continuity) when approximately 4.5 PSI (0.3 Bar) is
applied. Replace the switch if test results are not to
specification.
Fig. 48
If the oil pressure switch is within specification and
the warning light remains ON, verify engine oil
pressure with an oil pressure gauge.
Test Pressure
1. Oil level must be between the LOW and FULL
mark on dipstick. If oil level is low, check for leaks
and add oil to FULL mark.
2. Remove pressure switch or 1/8" NPTF plug in oil
filter adapter.
3. Install oil pressure gauge (1), Fig. 49.
4. Start engine. Run for approximately 5 minutes.
5. Check oil pressure at 3000 RPM.
Oil Pressure – measured @ 70º F (21º C):
•
10~50 psi (0.7~3.5 Bar)
Fig. 49
OIL PRESSURE TROUBLESHOOTING GUIDE
Engine RPM Too Low
Wrong Viscosity or Diluted Oil
Low Oil Level
Low Oil L Oil
Broken Pressure Relief Spring
Pressure Pressure
Missing Pressure Relief Plunger
Worn Bearings
Damaged or Defective Oil Pump
Wrong Viscosity Oil
Hi h Oil High Oil
Plugged Oil Galleries
Pressure Pressure
Stuck Pressure Relief Plunger

Panel Kit With Key Switch and Solenoid

Some V-Twin engines are equipped with a rotary key
switch panel and starter solenoid. See wiring
diagram for details.
Testing Key Switch
The rotary key switch can be checked for continuity
using the Digital Multimeter #19464.
Remove carburetor cover
Disconnect wiring harness from key switch.
With meter selector switch in +
position, and test leads attached to switch terminals,
a CONTINUOUS TONE
(complete circuit). NO TONE indicates no continuity
(open circuit). An open circuit will be displayed as
OL.
1. Insert RED test lead into VW receptacle in meter.
2. Insert BLACK test lead into COM receptacle.
3. Rotate meter selector to +
position.
4. Meter must indicate CONTINUITY between
terminals with key switch in position shown. See
number sequence of terminals shown in Fig. 50.

with key switch.
)) (DIODE TEST)
)
)
)
indicates continuity
)) (DIODE TEST)
)
)
)
53