3.
4.
Partially open water tap (approx. 1/2 maximum
capacity) and allow cooling system to fill com-
pletely. Cooling system is full when water is dis-
charged through the exhaust. Do not use full tap
water pressure.
!
CAUTION
Do not over-tighten cover screws or cover will
warp and leak.
2.
With engine off, close seacock, if so equipped, or
remove and plug seawater inlet hose, if no sea-
cock exists. Remove two screws and washers,
and cover. Remove strainer, and drain plug and
washer. Clean any debris from strainer housing;
flush both strainer and housing with clean water.
Check gasket; replace when necessary (if it
leaks). Reinstall strainer, drain plug and washer.
Reattach cover with screws and washers. Open
seacock, or unplug and reconnect seawater inlet
hose. Tighten hose clamps securely. After start-
ing engine, check for leaks and/or air in system,
which would indicate an external leak.
Place the remote control lever in NEUTRAL posi-
tion and start the engine. Operate engine at idle
speed in NEUTRAL gear for 10 minutes or until
discharge water is clear, then stop engine.
!
CAUTION
If boat is in the water, seacock (if so equipped)
must be left closed until engine is to be restarted,
to prevent water from flowing back into cooling
system. If boat is not fitted with a seacock, water
inlet hose must be left disconnected and
plugged, to prevent water from flowing into cool-
ing system and/or boat. As a precautionary mea-
sure, attach a tag to the ignition switch or steer-
ing wheel with the warning that the seacock must
be opened or the water inlet hose reconnected
prior to starting the engine.
b
a
c
d
5.
Shut off tap water. Remove flushing connector
from pump inlet. Refer to preceding precaution-
ary statement and then follow instructions “a” or
“b.”
e
h
a. If equipped with seacock: Reconnect water
inlet hose and tighten hose clamp securely.
Open seacock accordingly.
f
g
b. If NOT equipped with seacock: Unplug and
reconnect seawater inlet hose accordingly.
Tighten hose clamp securely.
72673
Check/Clean Seawater Strainer
Quicksilver Seawater Strainer Shown
a - Screws and Washers
b - Cover
c - Glass
d - O-Ring
e - Strainer
NOTICE
Refer to manufacturer’s instructions for
information on checking and cleaning of
other than Quicksilver Seawater Strainer.
f - Housing
g - Drain Plug and Sealing Washer
h - Gasket
1.
Visually inspect seawater strainer through glass
top.
!
WARNING
When cleaning seawater strainer, close seacock,
if so equipped. If boat is not equipped with a sea-
cock, remove and plug seawater inlet hose to
prevent a siphoning action that may occur, allow-
ing seawater to flow from the drain holes or re-
moved hoses.
Index
90-823324--2 796
SEAWATER COOLED SYSTEMS - 6A-37
| 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