Modifying Swim Platform Exhaust
Pipe, If Required
Silent Choice Exhaust
System
If engine is equipped with thru-prop exhaust, a
thru-transom kit [4 in. (102 mm)], two exhaust bel-
lows, and eight bellows hose clamps, are required.
ENGINE
If engine is equipped with thru-transom exhaust, an
exhaust pipe kit (P/N 44266A6) is required, contain-
ing the exhaust pipe and necessary parts.
IMPORTANT: When installing Silent Choice ex-
haust, it is recommended that the exhaust bel-
lows 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.
a
TRANSOM
!
CAUTION
72743
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 dam-
age the engine. Damage caused by water in the
engine will not be covered by MerCruiser Warran-
ty, unless this damage is the result of defective
part(s).
a - Cut Line (See Notes)
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/paint any raw (cut) aluminum surface.
Exhaust Bellows Removal and
Exhaust Tube Installation
IMPORTANT: Each exhaust bellows must be
double clamped at each connection, and the
hose clamps tightened to 30-40 lb. in. (3-5 N·m).
1. If required, remove and discard clamps and bel-
lows from gimbal housing.
b
a
22116
Index
7D-4 - COLLECTORS
90-823224--2 796
Product Specification
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 |
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