Volvo Penta TAMD73P-A Workshop Manual
  1. Manuals
  2. Brands
  3. Volvo Penta Manuals
  4. Engine
  5. TAMD73P-A
  6. Workshop manual
Volvo Penta TAMD73P-A Workshop Manual

Volvo Penta TAMD73P-A Workshop Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
Workshop Manual
D
Intake- and exhaust system,
2(0)
Cooling system
TAMD73P-A, TAMD73WJ-A

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the TAMD73P-A and is the answer not in the manual?

Questions and answers

Related Manuals for Volvo Penta TAMD73P-A

Summary of Contents for Volvo Penta TAMD73P-A

  • Page 1 Workshop Manual Intake- and exhaust system, 2(0) Cooling system TAMD73P-A, TAMD73WJ-A...

  • Page 3: Table Of Contents

    Group 25 Intake and exhaust systems Group 26 Cooling system Marine Engines TAMD73P-A • TAMD73WJ-A Contents General instructions ..........2 Coolant pump ............21 Seawater pump ........... 21 Special tool ............9 Thermostat ............22 Other special equipment ........10 Oil cooler, engine ..........

  • Page 4: General Instructions

    This Workshop Manual contains technical data, des- ne is running or has been turned off immediately criptions and repair instructions for Volvo Penta pro- prior to starting work on it. Reinstall all protecti- ducts or product versions contained in the contents ve parts removed during service operations be- list.
  • Page 5 General instruction s Never expose the batteries to a naked flame or Avoid skin contact with oil. Long-term or repea- electric sparks . Never smoke in proximity to ted contact with oil can remove the natural oils the batteries. The batteries give off hydrogen from your skin.
  • Page 6 Components in the electrical system, ignition ced. system (gasoline engines) and fuel system on Volvo Penta products are designed and cons- Observe the following rules when cleaning with tructed to minimize the risk of fire and explosi- high-pressure water jets: Never direct the water on.
  • Page 7 This Workshop Manual has been developed primarily The engine must not be modified in any way ex- for Volvo Penta service workshops and qualified per- cept with accessories and service kits approved sonnel. Persons using this book are assumed to have by Volvo Penta.
  • Page 8 Unless otherwise stated reconditioning properly and that Volvo Penta Genuine Parts as used. work which can be carried out with the engine in place The engine Maintenance Schedule must be followed.
  • Page 9 In this Volvo Penta Service Manual the user will find that each section where these agents are applied in production states which type was used on the engine.
  • Page 10 General instructions Always used chloroprene rubber gloves (gloves Safety precautions for Fluorine for handling chemicals) and protective glasses. rubber Treat removed seals in the same way as corrosi- ve acid. All remains, even the ash can be extre- Fluorine rubber is a common material in sealing rings mely corrosive.

  • Page 11: Special Tool

    Special tools 884985 885164 9992265 9992679 9992457 9994034 9996065 9996666 9996863 9998491 884985-3 Drift for pressing out coolant pump drive 9996065-0 Manometer with hose for connection to shaft banjo nipple 9996666 when checking tur- bocharger (TC) boost pressure. 885164-4 Flange kit assembly for measuring ex- haust back pressure in TAMD73.

  • Page 12: Other Special Equipment

    Other special equipment 885151 885151-1 Kit with test instrument for measuring ex- haust gas back pressure and exhaust temperature.

  • Page 13: Group 25 Intake And Exhaust System

    Group 25 Intake and exhaust system Design and function General Turbocharger The engines are equipped with an exhaust driven tur- bocharger (TC) which supplies the engine with over- pressured air. This increases the oxygen flow to the motor and more fuel can be combusted at the same time as combus- tion is more efficient.

  • Page 14: Boost Pressure Control (Bpc) Valve

    Design and function Boost pressure control (BPC) valve The boost pressure control (BPC) valve has the task of preventing the turbocharger (TC) from over-revving at high engine speeds. The valve is controlled by a pressure regulator with a sprung diaphragm which is affected by the boost pressure via a hose from the compressor housing.

  • Page 15: Repair Instructions

    Repair Instructions Removing turbocharger Installing turbocharger If the turbocharger unit is to function satisfactorily, it NOTE! Determine the reason for replacement when is vital that the engine’s lubrication system be main- replacing the turbocharger. Then remedy any faults tained and that the correct type of lubricating oil be before installing the new turbocharger (TC).
  • Page 16 Repair Instructions Clean the intake pipe between the turbocharger and Position a suitable container under the turbocharger oil the charge air cooler (CAC). After turbo failure strange return connection to collect the oil. objects, such as a broken turbine, may be left in the NOTE! To avoid damage to the turbocharger (TC) the intake.

  • Page 17: Checking Boost Pressure

    Repair Instructions Checking boost pressure Special tools: 999 6065, 999 6666, 999 8491 If the engine is particularly weak or if the exhaust is very smoky the turbocharger function can be suspect. Because of this boost pressure should always be checked before replacing the turbocharger.

  • Page 18: Corrective Action To Counter Low Boost Pressure

    Repair Instructions • Cleaning Corrective action in case of In event of daily use in dusty or oil vapor rich air low boost pressure and if the air filter replacement intervals have not been followed the compressor housing and com- pressor wheel may need to be cleaned.

  • Page 19: Checking Exhaust Gas Back Pressure

    Repair Instructions Checking exhaust back Connect a manometer calibrated to 24 kPa (2440 mm pressure 0) with pressure hose and a suitable nipple for con- nection to the measuring flange. Special tools: 885151, 885164 An exhaust system with too great a back pressure lo- Alternatively a transparent plastic hose can be con- wers the boost pressure, gives diminished engine out- nected to the measuring flange as illustrated.

  • Page 20: Checking Exhaust Temperature

    Repair Instructions Checking exhaust temperature Connect pyrometer sensor to output provided on the Special tools: 885151, 885164 measuring flange. The exhaust temperature reflects the engine’s thermal load. The exhaust temperature in relation to the high- est permitted exhaust temperature indicates combus- Run the engine/s at full load for some minutes with tion function in the engine at the current load.

  • Page 21: Group 26 Cooling System

    Group 26 Cooling system Design and function red to the seawater before the coolant is returned to the General coolant pump. The engines are liquid cooled and equipped with a clo- Large amounts of heat are also removed by the lubrica- sed cooling system.

  • Page 22: Keel Cooling

    Design and function Keel cooling Heat exchanger and charge air cooler (CAC) The keel cooling system of the TAMD73 consists of two separate, closed freshwater systems with cooling TAMD73 is equipped with a heat exchanger and a loops which cool the engine by contact with the sea charge air cooler (CAC).

  • Page 23: Coolant Pump

    Design and function Coolant pump The coolant pump is mounted on the front edge of the cylinder block and is driven via the crankshaft using a drive belt. The pump is carried on double roller bearing (1) and equipped with a seal (2) which effectively prevents coolant from leaking.

  • Page 24: Thermostat

    Design and function Thermostat The engines have a piston thermostat which has a bulb filled with wax. When the engine is cold the ther- mostat keep the route to the heat exchanger comple- tely closed. The coolant is routed into a by-pass line directly back to the engine.

  • Page 25: Oil Cooler, Reverse Gear

    When the engine is used in an area with a warm cli- mate, where there is never a risk of freezing, the engi- ne coolant can be mixed with Volvo Penta anti corro- sion agent (P/N 1141526-2) in those cases where wa- ter/antifreeze mix is not used all year round.

  • Page 26: Repair Instructions

    Repair Instructions Draining coolant NOTE! Before draining the coolant, the engine should be stopped, the filler cap unscrewed and the boat’s sea cock closed. Then open the drain cocks or remove the drain plugs of the engine’s freshwater and seawater systems. F = Freshwater drain cock/ -plug S = Sea water drain cock/ -plug V = Venting cock...

  • Page 27: Cleaning Cooling System

    Repair Instructions Cleaning the cooling system Fill with coolant* to 5 cm (2") beneath the sealing sur- face of the filler cap or to between the MIN and MAX WARNING! Close sea cock before working on marks on the separate plastic expansion tank (acces- cooling system.

  • Page 28: Seawater Filter, Checking And Cleaning

    Open the sea cock and check for leaks. Volvo Penta offers two types of seawater filter. One is a smaller filter with a transparent perspex co- ver, and the other is larger and has a metal cover.

  • Page 29: Heat Exchanger / Charge Air Cooler (Cac)

    Repair Instructions Heat exchanger / charge air Remove the 5 remaining screws holding the heat ex- cooler, cleaning or replacing changer and lift it off the engine. Note. Engines with keel cooling do not have a heat ex- Undo brace at the heat exchanger front. changer.
  • Page 30 Repair Instructions Heat exchanger and charge air cooler (CAC), dismantling Remove the end cover from the heat exchanger or CAC (6 mm Allen screw). Remove the O-rings and intermediate rings. Push out the inserts. Note. The inserts can only be pushed out backwards as they have a flange at the rear.
  • Page 31 Repair Instructions Heat exchanger and charge air cooler (CAC), installation Connect the bleed pipe at the front edge of the heat exchanger. Connect the pressure hose to front edge of the intake manifold. Lift the charge air cooler (CAC) with intake manifold Note.

  • Page 32: Charge Air Cooler (Cac), Test Pressurization

    Repair Instructions Charge air cooler (CAC), test Wash the insert in (e.g.) white spirit and blow it dry pressurization using compressed air (or let it stand and dry). Clean the tubes internally and the ends of the core using sui- If there is suspected leakage the charge air cooler table brushes.

  • Page 33: Zinc Anode Checking/Replacing

    Repair Instructions Zinc anodes, checking / Replace the anode if more than 50% of it has been replacing consumed. Otherwise clean the anode with an emery cloth to remove the oxide layer. NOTE! Close the sea cock and drain the water from the seawater system.

  • Page 34: Coolant Pump, Replacement

    Repair Instructions Coolant pump, replacement Remove the coolant pump mounting screws and lift the coolant pump off. NOTE! Close the sea cock and drain the water from the seawater system. Clean all surfaces. Install a new sealing ring between the coolant pump and the timing cover. Apply sealing compound 1161231-4 to the surface between the coo- Drain cooling system (freshwater system) of coolant.

  • Page 35: Reconditioning Coolant Pump

    Repair Instructions Reconditioning coolant pump Remove the snap ring from the shaft journal and pull off the bearing with a claw puller. Removed pump Special tools: 999 2265, 999 2679 Dismantling Place the pump housing in a press and press out the shaft and impeller at the same time.

  • Page 36: Replacing The Seawater Pump Impeller

    Repair Instructions Replacing the seawater pump Replacing seawater pump impeller NOTE! Close the sea cock and drain the water from the seawater system. NOTE! Close the sea cock and drain the water from the seawater system. Remove the cooling water pipes to and from the oil cooler.

  • Page 37: Reconditioning Seawater Pump

    Repair Instructions Reconditioning seawater pump Removed pump Special tools: 9992457, 9994034. Fasten the pump in a vise with soft jaws. Remove the cam by slackening off the screw. Rem- ove the sealing compound on the cam and in the pump housing. Remove the wear washer from the pump.
  • Page 38 Repair Instructions Remove the small snap ring. Remove the lock- and thrust washer. Place the pump in a press and press the shaft out from the pump. Install the new bearings with lock- and thrust washer. Install the bearing snap ring. Knock out the oil seal and ceramic seal with a drift.
  • Page 39 Repair Instructions Install the small snap ring. Press into place using drift 9994034. Install the wear washer. Ensure that the guide pin in the housing aligns with the washer cut out. Install the ceramic part of the seal. NOTE! Apply some plastic film from a carrier bag to the ceramic to protect it from grease.

  • Page 40: Replacing Thermostat

    Repair Instructions Replacing thermostat Locate the new or checked and approved thermostat Special tools: 9996863 in the housing and install the cover. Use new sealing rings. Drain the necessary amount of coolant. Install the fuel filter. Open the fuel cocks and if neces- sary vent the fuel system according to the instruc- tions in Workshop Manual “Group 23 Fuel system”...

  • Page 41: Thermostat, Function Test

    Repair Instructions Thermostat, function test A function test should be carried out before the ther- mostat is replaced. Check that the thermostat is completely closed. Hold the thermostat to the light and check that no air column is visible at the separation point. If the thermostat does not close completely it should be replaced.
  • Page 42 Notes...
  • Page 43 We would prefer it if you wrote in Swedish or English. From: ....................................................................Concerning publication: ............................Publication no.: ............Publication date: ..............Suggestion/Reason: ....................................................................................................................................................................................................................................................................................................................Date: ..............Name: ............... AB Volvo Penta Technical Information Section 42200 SE-405 08 Göteborg Sweden...

This manual is also suitable for:

Tamd73wj-a

Table of Contents