Ignition Coil
RESISTANCE CHECK
Use an ohmmeter or the ohms function of a DVM for
the following check.
NOTICE
Refer to “Service Precautions,” in “Repair
Procedures,” BEFORE proceeding.
1.
Connect meter as shown with meter 1 in the fig-
ure below.
REMOVAL
1.
Disconnect wire harness connectors at coil.
b
3
a
2
1
72920
72921
2.
Setting the meter to its highest ohms scale, check
resistance. The reading should indicate infinite
resistance. If it does not, replace the coil.
a - Wire Harness Connection
b - High Tension Coil Lead Connection
2.
3.
Remove high tension coil lead.
3.
4.
Connect meter as shown with meter 2 in the fig-
ure above.
Remove coil bracket fasteners and remove coil
bracket with coil.
Setting the meter to its lowest ohms scale, check
resistance. The reading should be very low or
zero resistance. If it is not, replace the coil.
5.
6.
Connect meter as shown with meter 3 in the fig-
ure above.
Setting the meter to its highest ohms scale, check
resistance. The reading should not indicate infi-
nite resistance. If it does, replace the coil.
INSTALLATION
7.
Install coil bracket with coil to engine bracket us-
ing fasteners.
Index
90-823224--2 796
ELECTRONIC FUEL INJECTION (MULTI-PORT AND THROTTLE BODY) - 5C-185
| 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