Exhaust system
33
2
4
3
D12
Wet exhaust line
. Nipple for connection of hose
2. Exhaust elbow
3. Transparent plastic hose partly filled with water
4. Manometer. Alternative to plastic hose
A. Exhaust backpressure in mm wc
D9/D11
Wet exhaust line (picture with riser)
. Nipple for connection of hose
2. Exhaust elbow
3. Transparent plastic hose partly filled with water
4. Manometer. Alternative to plastic hose
A. Exhaust backpressure in mm wc
3
4
A
2
. Flange for connection of hose
2. Exhaust elbow
3. Transparent plastic hose partly filled
with water
4. Manometer. Alternative to plastic hose
A. Exhaust backpressure in mm wc
4
2
3
D5/D7
Wet exhaust line
Measuring procedure
Wet exhaust system
• Remove the exhaust pipe from the turbocharger
exhaust output. Clean the mating surface.
• Install the measuring flange () to the turbine
housing flange (only if measuring flange is need-
ed).
• Install the exhaust elbow pipe (2) on the measur-
ing flange or the nipple. Use V clamps or bolts de-
pending on the engine type and exhaust system.
• Connect a transparent plastic hose (3) to the
measuring flange or the nipple as illustrated.
Alternatively, connect a manometer (4) calibrated
to
24 kPa (3.5 psi, 2440 mm wc) with pressure
hose and a suitable nipple (if needed) to the
measuring flange or the nipple.
The difference between the water column levels (A)
shows the exhaust line back-pressure in mm or inch-
es water column.
• Run the engine at full load and max. rpm for sev-
eral minutes and check that the backpressure
does not exceed permitted value.
Max permissible exhaust backpressure in exhaust
line, see table
Max. allowed backpressure in ex-
haust pipe at rated rpm, kPa.
Summary of Contents for D11 series
Page 1: ...Marine Propulsion Diesel Engines Installation 1 1 D E D5 D16 series ...
Page 2: ......
Page 208: ...206 References to Service Bulletins Group No Date Concerns ...
Page 209: ...207 Notes ...
Page 210: ...208 Notes ...
Page 212: ...7748655 English 11 2007 ...