SERVICE MANUAL NUMBER 24
MAINTENANCE
5.
Remove end caps, sealing washers and gaskets from the heat exchanger. Allow tubes
to drain.
a
b
c
71515
d
a- Heat Exchanger
b- Sealing Washer
c- End Cap
d- Gasket
IMPORTANT: Use compressed air to blow any remaining water from the tubes in the
heat exchanger.
6.
7.
8.
Repeatedly clean out drain holes using a stiff piece of wire. Do this until entire system
is drained.
Crank engine over slightly with starter motor to purge any water trapped in seawater
pickup pump. DO NOT ALLOW ENGINE TO START.
After seawater section of cooling system has been drained completely:
a. Except blue colored drain plugs with seals, coat threads of drain plugs with Quicksil-
ver Perfect Seal. Install all drain plugs and tighten securely.
b. Apply Quicksilver Perfect Seal to both sides of new end plate gaskets. Assemble
new gaskets, new sealing washers and end plates onto heat exchanger. Torque end
plate screws to 36-72 lb-in. (4-8 Nm).
c. Reconnect all hoses and tighten hose clamps securely.
d. If NOT equipped with seacock: Seawater inlet hose must remain disconnected
and plugged until engine is to be restarted.
Index
90-861327--1
OCTOBER 1999
Page 1B-51
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 305 CID, Mercury MerCruiser 350 CID |
| Model Year | 1998, 1999, 2000, 2001 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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