Exhaust System - Hyundai Seasall D170s Installation & Operation Manual

INSTALLATION & OPERATION MANUAL

4. EXHAUST SYSTEM

1) Your Hyundai SeasAll engine's exhaust system consists of a coolant-cooled exhaust
manifold and a seawater-cooled exhaust elbow (water injected wet exhaust system).
2) The vessel's exhaust line should not be made too long and should have as few bends
as possible. The maximum back pressure of the exhaust gas should be under 350
mbar.
3) Make sure that the shortest height between bottom of the exhaust elbow and the
center of the crank axis is 30cm.
4) If the distance between the bottom of the exhaust elbow and the waterline is less than
15cm, or if the waterline is above the water injection point, there is a risk of back
flowing (siphoning when the engine stops and outside seawater enters through the
exhaust system).
5) In order to avoid this risk, a vacuum breaker and an exhaust riser are needed. If in
doubt about exhaust system installation, please contact your nearest Hyundai SeasAll
dealer.
150mm
Seawater line ×
!
!
D170 and D150 Series Engines
Exhaust elbow bottom
304mm
Outer diameter of elbow is 92mm
×
Center of crank axis
IF IN DOUBT ABOUT EXHAUST SYSTEM INSTALLATION, PLEASE
IF IN DOUBT ABOUT EXHAUST SYSTEM INSTALLATION, PLEASE
CONTACT YOUR NEAREST HYUNDAI SeasAll DEALER.
CONTACT YOUR NEAREST HYUNDAI SeasAll DEALER.
Shift plate mount
hole
×
Screw plug for sea water extraction
Screw plug for exhaust gas extraction
CAUTION
CAUTION
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