vetus M2 Marine Diesel Engine Instruction Manual

Installation manual
Waterheater connection M2, M3

M2 Marine Diesel Engine

To install the calorifier connections please carry out the following steps.

STEP 1

• Check if the engine is filled with coolant. If required drain.

STEP 2

• Remove the alternator V-belt.
  1x bolt M8
  Torque 30 Nm
  Wrench 13 mm

STEP 3

• Remove the tensioner support.
  2x bolt M6
  Torque 15 Nm
  Wrench 10 mm
  1x bolt M8
  Torque 30 Nm
  Wrench 13 mm

STEP 4

• Loosen the two hose clamps.
  Wrench 7 mm

STEP 5

• Remove the thermostat housing, cover and pipe.
  2x bolt M6
  Torque 15 Nm
  Wrench 10 mm

STEP 6

• Replace the pipe by the calorifier connection.
  1x 08-01188 calorifier connection 13 mm

• Use new O-rings.
  2 x STM1238 O-Ring

STEP 7

• Remove all gasket remnants of the cylinder head and the thermostat housing.

STEP 8

• Install the thermostat housing together with the calorifier connection.

• Use a new gasket.
  1x STM3967 Gasket

• Grease both O-rings lightly; use Molykote 111©

STEP 9

• Secure the calorifier connection with the M6 bolt of the circulation pump. See red arrow.

STEP 10

• Re-install the tensioner support.
  2x bolt M6
  Torque 15 Nm
  Wrench 10 mm
  1x bolt M8
  Torque 30 Nm
  Wrench 13 mm

STEP 11

• Secure the hose clamps.
  Wrench 7 mm

STEP 12

• Tension the V-belt.
  1x bolt M8
  Torque 30 Nm
  Wrench 13 mm

• Check the tension of the belt by applying moderate finger and thumb pressure. If the deflection is more than 12 mm, using about 10 kg thumb force, it should be tensioned.

STEP 13

• Fill the cooling system and check for leakages.

Fokkerstraat 571 – 3125 BD Schiedam – Holland
Tel.: +31 (0)88 4884700 – sales@vetus.com – www.vetus.com
Printed in the Netherlands
344399.01 2023-01
Copyright © 2023 VETUS Schiedam Holland

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