1. Manuals
  2. Brands
  3. GGP Manuals
  4. Engine
  5. WBE 0701
  6. Workshop manual

GGP WBE 0701 Workshop Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

WBE 0701
WBE 0704

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the WBE 0701 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for GGP WBE 0701

Summary of Contents for GGP WBE 0701

  • Page 1 WBE 0701 WBE 0704...
  • Page 2 he manufacTurer reserves The righT To make all The necessary Technical or commercial improvemenTs To iTs producTs so There may be some differences beTween The series of engines and The conTenTs of This manual owever The basic specificaTions and differenT operaTing procedures will remain The same ©...

  • Page 3: Table Of Contents

    << BACK >> Engine WBE 0701-WBE 0704 CONTENTS INTRODUCTION ..................... 5 1. RULES AND PROCEDURES FOR SERVICE CENTRES .......... 6 1.1. Guarantee validity ...........................6 1.2. Service repairs after guarantee period ....................6 1.3. Fault notification ............................6 1.4. Spare parts request ..........................6 2. GENERAL AND SAFETY REGULATIONS ............. 7 2.1. Qualification of operators ........................7...
  • Page 4 << BACK >> Engine WBE 0701-WBE 0704 CONTENTS 8. CARBURATION ....................21 8.1. Removing and cleaning the carburettor .....................21 8.2. Replacing the carburettor ........................24 8.. Adjusting minimum speed ........................24 8.4. Adjusting maximum speed ........................24 8.5. Adjusting the carburation ........................24 9. GOVERNOR SYSTEM OF THE CARBURETTOR ..........25 9.1.

  • Page 5: Introduction

    WBE 0701 - WBE 0704 engines. Interventions on the engine must be performed in accordance with instructions in the following pages Warns of operations that should be carried...

  • Page 6: Rules And Procedures For Service Centres

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 1. RULES AND PROCEDURES FOR SERVICE CENTRES 1.1. Guarantee validity The warranty is supplied under the terms, procedu- res and limits stated in the contract. 1.2. Service repairs after guarantee period...

  • Page 7: General And Safety Regulations

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 2. GENERAL AND SAFETY REGULATIONS 2.. Precautions during servicing IMPORTANT: Before commencing with any As well as following the usual accident prevention intervention, carefully read the information regulations that apply to most repair shops, we...

  • Page 8: Etichette Di Sicurezza

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 2. GENERAL AND SAFETY REGULATIONS 2.4. Etichette di sicurezza adequate ventilation and, therefore, avoid gas poisoning. On the canopy motor, in a immediately identifica- tion position, are some indication or prescription plates for the safety operator.

  • Page 9: Technical Data And Specifications

    << BACK >> Engine WBE 0701-WBE 0704 back to the index . TECHNICAL DATA AND SPECIFICATIONS .4. Expendable materials Unleaded (green) Petrol minimum 90N.O. - from 5 to 35 °C SAE 30 Engine oil - from -15 to +5 °C 5W30-10W30 - from -25 to + 35°C...

  • Page 10: Tightening Torques

    << BACK >> Engine WBE 0701-WBE 0704 back to the index . TECHNICAL DATA AND SPECIFICATIONS .6. Tightening torques 80-90 Nm 4-6 Nm 8-12 Nm 8-10 Nm 8-10 Nm 8-10 Nm 16-18 Nm 8-12 Nm 8-12 Nm 50-55 Nm 8-10 Nm...

  • Page 11: Table Of Tightening Torques

    << BACK >> Engine WBE 0701-WBE 0704 back to the index . TECHNICAL DATA AND SPECIFICATIONS .7. Table of Tightening torques Chapter Ref. Description of screw Tightening torques Tank fixing screws 8 - 10 Nm Tank fixing nut 8 - 10 Nm...

  • Page 12: Identification Of Engine Units

    << BACK >> Engine WBE 0701-WBE 0704 back to the index . TECHNICAL DATA AND SPECIFICATIONS 3.8. Identification of engine units For ease of reference, this manual has subdivided maintenance operations into different sections, each of which refers to an engine component unit as indicated in the diagrams below.

  • Page 13: Engine Tuning And Testing

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 4. ENGINE TUNING AND TESTING 4.1. Operating guidelines The engine requires a series of interventions (shown in the table below) in order to ensure minimum basic maintenance. Every 25...

  • Page 14: Functional Test

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 4. ENGINE TUNING AND TESTING 4.. Functional test A functional test needs to be carried out at the end of each servicing operation, to check that the operations made are effective. The test must be...

  • Page 15: Tank And Supply

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 5. TANK AND SUPPLY IMPORTANT: Carefully read the information below before commencing any intervention. General Information The fuel supply system comprises the petrol tank connected to the carburettor by a pipe; a mesh filter at the bottom of the tank prevents deposits and impurities from reaching the carburettor.

  • Page 16: Emptying And Removing The Tank

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 5. TANK AND SUPPLY 5.1. Emptying and removing the tank 1 - Remove the ring (1) of the petrol pipe (2) from the tank side and drain all the fuel from the tank and the pipe into a suitable container.

  • Page 17: Checking And Cleaning The Breather Pipe

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 5. TANK AND SUPPLY 5 - Empty the tank and dispose of the petrol used for cleaning in accordance with the laws in force. 5.1] 6 - Refit the tank tightening the screws () and the nut (4) to the torques indicated.

  • Page 18: Starting System

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 6. STARTING SYSTEM General information The starter assembly inside the cover consists of a rope wound around a pulley. The movement from the pulley to the flywheel (and the engine shaft) is transmitted by a pair of hooks. The rope is returned and rewound by a spiral spring.

  • Page 19: Replacing The Hooks

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 6. STARTING SYSTEM 4 - Insert one end of the rope (5) (ø 3.5mm - length 2500mm), through the guide in the ventilation grille, into the hole in the pulley (4), and fasten it by tying a knot.

  • Page 20: Intake System

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 7. INTAKE SYSTEM General information The intake system uses an air filter directly connected to the carburettor by means of a manifold which conveys the air/petrol mixture to the inlet valve.

  • Page 21: Carburation

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 8. CARBURATION General information The carburettor has a float with a fixed jet and a “CHOKE” control. See the relevant section for advice on resolving problems due to carburation.
  • Page 22 << BACK >> Engine WBE 0701-WBE 0704 back to the index 8. CARBURATION 4 - Remove the gasket (7) and move the intake butterfly rod to the minimum position. 5 - Using pliers, disconnect the intake butterfly rod (8) and slide the small rod (9) for the relative com- pensation spring upwards.
  • Page 23 << BACK >> Engine WBE 0701-WBE 0704 back to the index 8. CARBURATION 8 - Pull out the pin (16), dismount the float (17) and remove the gasket (18). 9 - Undo the main jet (19) and pull out the pilot jet (20).

  • Page 24: Replacing The Carburettor

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 8. CARBURATION 8.2. Replacing the carburettor 1 - Perform operations 1 - 2 - 3 - 4 - 5 - 6 - 12 - 13 - 14 8.1] - 15 indicated in section above.

  • Page 25: Governor System Of The Carburettor

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 9. GOVERNOR SYSTEM OF THE CARBURETTOR General information The carburettor governor system uses a engine shaft linkage fitted on a support fixed to the left-hand side of the engine, completed by a counterweight device, driven by the camshaft, and thus sensitive to changes in the engine’s revolution pattern depending on load.

  • Page 26: Adjusting Maximum Speed

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 9. GOVERNOR SYSTEM OF THE CARBURETTOR 9.2. Adjusting maximum speed 1 - Check that the throttle cable is adjusted cor- 9.1]. rectly 2 - Let the engine heat up for a few minutes then FAST set the throttle control to “FAST”.

  • Page 27: Replacing The Lever Support

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 9. GOVERNOR SYSTEM OF THE CARBURETTOR 6 - If the above checks do not show any faults, the phasing of the governor’s control lever (1) with respect to the counterweight device must be...

  • Page 28: Ignition

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 10. IGNITION General information The ignition system has a flywheel with an electronic coil which supplies high voltage to the spark plug. See the relevant section for advice on resolving problems related to the ignition.

  • Page 29: Adjusting The Air Gap And Checking The Coil

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 10. IGNITION 10.2. Adjusting the air gap and checking the coil 6.1]. 1 - Remove the starter assembly 2 - Make sure that the earth cable faston (6) of the coil (7) is not oxidized;...

  • Page 30: Replacing The Coil

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 10. IGNITION 7 - Perform a spark test as indicated in 10.1]. - If the spark jumps: the coil functions properly and in the event of malfunction, verify that the cut-off cable (1) is not earthed.

  • Page 31: Turning Off And Stopping The Engine

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 11. TURNING OFF AND STOPPING THE ENGINE General information The engine is turned off and stopped by releasing a lever on the lawnmower. The cable acts on a lever which simultaneously activates a microswitch that sends the coil to earth as well as a brake which acts on the flywheel.

  • Page 32: Checking The Brake

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 11.. Checking the brake 6.1]. 1 - Remove the starter assembly > 2 mm 2 - Check that the thickness of the friction pad (9) is not less than 2 mm at its thinnest point.

  • Page 33: Replacing The System For Turning Off And Stopping The Engine

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 11. TURNING OFF AND STOPPING THE ENGINE 11.4. Replacing the system for turning off and stop- ping the engine 6.1]. 1 - Remove the starter assembly 7.1]. 2 - Remove the filter assembly 3 - Disconnect the brake wire (2) from the lever ().

  • Page 34: Exhaust System

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 12. EXHAUST SYSTEM General information The exhaust system consists of a muffler installed on the cylinder together with a gasket, a spacer and a heatproof baffle. 15]. To solve problems in the exhaust system, see the relevant chapter 12.1. Removing and replacing the muffler...

  • Page 35: Engine Block - External Operations

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 1. ENGINE BLOCK - External operations 1.1. Checking the compression 1 - Remove the cap (1) and take out the spark plug (2). 2 - anually set the piston to the TDC (Top Dead Centre) of the compression stroke so that both valves are closed.

  • Page 36: 1.2. Adjusting The Valve Clearance

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 1. ENGINE BLOCK - External operations 1.2. Adjusting the valve clearance WARNING: The adjustment must be made with the engine is cold. 1 - Remove the cover and demount the spark plug 1.1].

  • Page 37: Dismantling And Cleaning The Cylinder Head

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 1. ENGINE BLOCK - External operations 1.. Dismantling and cleaning the cylinder head 8.2]. 1 - Remove the carburettor 12.1]. 2 - Remove the exhaust muffler 3 - Remove the cover and demount the spark plug 1.1].

  • Page 38: 1.4 Overhauling The Cylinder Head And Valves

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 1. ENGINE BLOCK - External operations 1.4 Overhauling the cylinder head and valves NOTE - These paragraphs describe all the operations for checking and overhauling the cylinder head; it is left to the operator to assess the advisabi-...
  • Page 39 << BACK >> Engine WBE 0701-WBE 0704 back to the index 1. ENGINE BLOCK - External operations 7 - Apply abrasive paste for grinding around the rim of the valve head (19) and then insert the valve into its seat.

  • Page 40: Dismantling And Replacing The Magneto Flywheel

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 1. ENGINE BLOCK - External operations 1.5. Dismantling and replacing the magneto flywheel 6.1]. 1 - Remove the starter assembly 2 - Using an airgun, undo the nut (24) and extract the fan (25), setting aside the starter cup (26).

  • Page 41: 1.6. Checking The Oil Breather

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 1. ENGINE BLOCK - External operations 1.6. Checking the oil breather 1.5]. 1 - Remove the magneto flywhee 2 - Unscrew the two screws (2) fixing the closing plate ().

  • Page 42: Replacing The Lower Compression Ring Of The Engine Shaft (Sump Side)

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 1. ENGINE BLOCK - External operations 1.8. Replacing the lower compression ring of the engine shaft (sump side) NOTE - Before executing this operation di- scharge all the oil from the bowl and rotate 180°...

  • Page 43: Engine Block - Overhauling Internal Parts

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 14. ENGINE BLOCK - Overhauling internal parts All the operations described below require the re- moval of the engine from the lawnmower. 14.1. Removing the engine from the lawnmower 5.1].

  • Page 44: Carter Opening

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 14. ENGINE BLOCK - Overhauling internal parts 14.2. Carter opening 1 - Position the engine on a stable support and remove the sparkplug. 2 - Turn the engine up-side-down and position it so that the shaft projects upwards.

  • Page 45: Dismantling And Checking The Camshaft And Counterweight Governor

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 14. ENGINE BLOCK - Overhauling internal parts 14.. Dismantling and checking the camshaft and counterweight governor 1 - Remove the engine from the machine and open 14.2]. the cover 2 - Remove the camshaft (10).

  • Page 46: Engine Wbe 0701-Wbe

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 14. ENGINE BLOCK - Overhauling internal parts 7 - In the case of breakage or irregular operation of the counterweights the whole group, fixed by a plate (16) and a screw (17) must be replaced.

  • Page 47: Dismantling And Checking The Piston, Piston Rings, Connecting Rod And Engine Shaft

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 14. ENGINE BLOCK - Overhauling internal parts 10 - When refitting the camshaft, maximum care must be taken to match up the two references (22) and (2) punched on the gears, so as to ensure correct distribution phasing.
  • Page 48 << BACK >> Engine WBE 0701-WBE 0704 back to the index 14. ENGINE BLOCK - Overhauling internal parts 9 - To check the wear in the compression rings, insert them one at a time into the cylinder (28) by about 10-15 mm and measure the gap between the two ends with a feeler gauge (0);...
  • Page 49 << BACK >> Engine WBE 0701-WBE 0704 back to the index 14. ENGINE BLOCK - Overhauling internal parts 13 - Check the diameter of the gudgeon pin (4) in several places and replace it if it is less than 12.95 mm, even at a single point.

  • Page 50: Engine Wbe 0701-Wbe

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 14. ENGINE BLOCK - Overhauling internal parts 16 - Remove the engine shaft (5), checking the diameter of the connecting rod pin with a digital gauge. The value must not be less than 25,92 mm or the engine shaft will have to be replaced.

  • Page 51: Engine Wbe 0701-Wbe

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 14. ENGINE BLOCK - Overhauling internal parts 20 - Put the piston into the ring compression tool (41). 21 - Oil the inside of the piston liberally and insert the piston, with the marking facing the exhaust.

  • Page 52: Engine Wbe 0701-Wbe

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 14. ENGINE BLOCK - Overhauling internal parts 24 - Close the carter and fix the screws (6) to the 14.2]. indicated couple 25 - Whenever the engine shaft is dismantled and...

  • Page 53: Troubleshooting

    << BACK >> Engine WBE 0701-WBE 0704 back to the index 15. TROUBLESHOOTING PROBLEM CAUSE SOLUTION The engine brake cable is faulty or Adjust and/or replace the cable 11.1] unfastened Replace the microswitch The microswitch is faulty 11.2] Check electrical cabling of earth wire Coil earth connection 10.2]...
  • Page 54 << BACK >> Engine WBE 0701-WBE 0704 back to the index 15. TROUBLESHOOTING PROBLEM CAUSE SOLUTION The throttle cable is not well adju- Check and/or adjust the throttle ca- 9.1] sted The governor malfunctions or there is Check the entire governor system...
  • Page 55 << BACK >> Engine WBE 0701-WBE 0704 back to the index pag. 55 Release 00 - 02/2008 Service manual...
  • Page 56 << BACK >> Engine WBE 0701-WBE 0704 back to the index pag. 56 Service manual Release 00 - 02/2008...

This manual is also suitable for:

Wbe 0704

Table of Contents

Save PDF