SERVICE MANUAL NUMBER 23
COLLECTORS
The below swim platform exhaust pipe can be modified for specific height applications by
cutting pipe at location shown.
b
a
c
72743
a - Cut Line (See Notes)
b - To Engine
c - To Transom
NOTE: If riser kits are installed, or if more vertical drop is required, cut “a” must be made,
and the upper and lower sections of the pipe rejoined with a 4 in. (102 mm) I.D. exhaust hose
of the required length. Secure with hose clamps.
NOTE: Prime and paint any raw (cut) aluminum surface.
IMPORTANT: Each exhaust bellows must be double clamped at each connection, The
hose clamps are torqued to 30-40 lb. in. (3-5 N·m).
Silent Choice Exhaust System
If engine is equipped with thru-prop exhaust, a thru-transom kit [4 in. (102 mm)], two exhaust
bellows, and eight bellows hose clamps are required.
If engine is equipped with thru-transom exhaust, an exhaust pipe kit (P/N 44266A6) is
required, containing the exhaust pipe and necessary parts.
IMPORTANT: When installing Silent Choice exhaust, it is recommended that the
exhaust bellows on the transom assembly be removed. This is necessary to avoid
creating a vacuum at the exhaust outlet in the propeller at higher boat speeds. This
vacuum could degrade propeller performance on some boats.
CAUTION
It is the responsibility of the boat manufacturer or installing dealer to properly
locate the engine and install exhaust system. Improper installation may allow water
to enter the exhaust manifolds and combustion chambers, and severely damage
the engine. Damage caused by water in the engine will not be covered by
MerCruiser Warranty, unless this damage is the result of defective part(s).
Index
Index
90-861326--1
MARCH 1999
Page 7D-7
| 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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