c. If horn sounds, problem is in tan/blue wire
back to engine or switches on engine.
Oil Pressure Switch
TESTING
c
e
1.
2.
Remove wire from sender terminal.
Connect continuity meter between sender termi-
nal and sender hex. (Sender shown removed for
clarity.)
f
b
a
+
–
g
d
72612
Buzzer For 1994 Model And Older Carbureted En-
gines
72764
a - Jumper Wire To 12 Volt (+) Step 3
b - Jumper Wire To Negative (–) Step 3
c - Jumper Wire To 12 Volt (+) Step 4
d - Jumper Wire To Negative (–) Step 4
e - PURPLE Wire
3.
4.
With engine not running, meter should indicate
full continuity.
Start engine. With engine running and engine oil
pressure above 6 PSI (41 kPa), meter should in-
dicate NO continuity.
f - RED Wire
g - TAN/BLUE Wire
Water Temperature Switch
REMOVAL
1.
Drain coolant from closed cooling system into a
suitable container as outlined in Section 6B.
2.
Remove tan/blue wire from temperature switch.
74046
Buzzer For EFI and 1995 Model And Newer Car-
bureted Engines (No Timer Circuit)
b
a
72613
a - TAN/BLUE Wire
b - Water Temperature Switch
Index
4D-12 - INSTRUMENTATION
90-823224--2 796
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
| Model Year | 1993, 1994, 1995, 1996, 1997 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(4 votes, average: 4.5 out of 5)
Marine readers have rated 1993 1997 Mercury-MerCruiser GM V8 454 CID 7.4L and 502 CID 8.2L Marine Engines Service Manual Number 16 4.5 out of 5.0 based on 4 product reviews. Hugely helpful service manual! Perfect. Thank you!
Manuals are all Important for Technician
This book is invaluable if you do your own repairs. Great book.
Could not find a copy until a search brought me here.
Excellent print.
Thank you