CLOSED COOLED (FRESH WATER) MODELS
SERVICE MANUAL NUMBER 23
Auxiliary Hot Water Heater Installation
IMPORTANT: When connecting a cabin heater or hot water heater, certain require-
ments must be met:
•
Supply hose (from engine to heater) and return hose (from heater to engine)
MUST NOT EXCEED 5/8 in. (16 mm) I.D. (inside diameter).
•
Make heater connections ONLY at locations described in the following instruc-
tions.
•
•
Check complete system for leaks after heater is connected into cooling system.
Check for overheating condition (of engine) after heater is connected.
CAUTION
On closed cooling models, the heater must be mounted lower than the fill cap on
the heat exchanger. If the heater is higher than the fill cap on the heat exchanger
and some coolant is lost from system, an air pocket may form in the closed cooling
system. This can cause the engine to overheat.
a
75503
Supply Hose Connection
a - Location For Hot Water Supply Hose (Thermostat Housing As Viewed From
Above)
a
75480
Return Hose Connection
a - Location For Hot Water Return Hose
Page 6B-18
90-861326--1 MARCH 1999
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
| Model Year | 1998, 1999, 2000, 2001 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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Marine readers have rated Mercury MerCruiser GM V8 GM V8 454 CID 7.4L and 502 cid 8.2L Marine Engines Service Manual Number 23 5.0 out of 5.0 based on 1 product reviews. Just need the manual. Wrote review. Can't technically review what I haven't seen yet...