VW MKII A2 MK2 Golf Jetta Fox Service Manual - VAGLinks.com

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5A•2 Ignition system - contact breaker type Torque wrench settings Nm lbf ft Spark plugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 15 Distributor clamp bolt: 1.05 and 1.3 litre . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 7 1.6 and 1.8 litre . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 18 1 General information and precautions General information The ignition system covered in this Chapter is of the conventional contact breaker type. On 1.05 and 1.3 litre engines, the distributor is mounted on the left-hand (gearbox) end of the cylinder head and is driven direct from the camshaft (see illustrations). On 1.6 and 1.8 litre engines, the distributor is mounted at the front (radiator) end of the engine and it is driven by a skew gear in mesh with the intermediate shaft of the engine (see illustration). To enable the engine to run correctly, it is necessary for an electrical spark to ignite the fuel/air mixture in the combustion chamber at exactly the right moment in relation to engine speed and load. The ignition system is based on feeding low tension voltage from the battery to the coil, where it is converted to high tension voltage. The high tension voltage is powerful enough to jump the spark plug gap in the cylinders many times a second under high compression, providing that the system is in good condition. The ignition system is divided into two circuits, the low tension (LT) circuit and the high tension (HT) circuit. The LT (primary) circuit comprises the battery, a lead to the ignition switch, a lead from the ignition switch to the LT coil windings (terminal +) and a lead from the LT coil windings (terminal -) to the contact breaker points and condenser in the distributor. The condenser is fitted in parallel with the contact points and its purpose is to reduce arcing between the points and also to accelerate the collapse of the coil low tension magnetic field. The HT circuit comprises the HT (secondary) coil windings, the heavy ignition 1.1a Contact breaker ignition system components - Bosch distributor, 1.05 and 1.3 litre engines 1 Sealing ring 2 Condenser 3 Distributor 4 Vacuum unit 5 Lockwasher 6 Contact breaker plate 7 Contact set 8 Retaining ring 9 Bearing plate 10 Carbon brush with spring 11 Distributor cap 12 Dust cover 13 Rotor arm 14 Spark plug 15 Spark plug connector 1081 VW Golf & Jetta 16 Screening ring 17 Suppression connector 18 Terminal 15 (+) 19 Terminal 1 (–) 20 Terminal 4 21 HT ignition lead 22 Clip lead from the coil to the distributor cap, the rotor arm and the spark plug leads and spark plugs. The system functions in the following manner. LT voltage is changed in the coil into HT voltage by the opening and closing of the contact breaker points. HT voltage is then fed via the carbon brush in the centre of the distributor cap to the rotor arm of the distributor and each time it comes in line with one of the four metal segments in the cap, which are connected to the spark plug leads, the opening and closing of the contact breaker points causes the HT voltage to build up, jump the gap from the rotor arm to the appropriate metal segment, and so via the spark plug lead to the spark plug, where it finally jumps the spark plug gap before going to earth. Ignition timing is advanced and retarded automatically, to ensure that the spark occurs at just the right instant for the particular load at the prevailing engine speed.
1.1b Contact breaker ignition system components - Ducellier distributor, 1.05 and 1.3 litre engines 1081 VW Golf & Jetta Ignition system - contact breaker type 5A•3 1.1c Contact breaker ignition system components - 1.6 litre engine 5A
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Chapter 1 Routine maintenance and s
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CO content (%) 1.05 litre carburett
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The maintenance intervals in this M
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Maintenance - component location 1
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Maintenance - component location 1
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6 Fluid leakage and engine electric
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9 The engine will turn over more ea
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13 Wipe clean the distributor cap a
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18.13 Using a chain wrench to unscr
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25.3a Bend each brake hose to check
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32.4b . . . loosen front mounting n
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Chapter 2 Part A: Engine repair pro
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1.3 litre: Inlet opens . . . . . .
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difficulty is experienced, it may b
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9 Cylinder head - removal 3 1 If th
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11 Cylinder head - dismantling and
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14.13a Withdrawing crankshaft rear
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21 Crankshaft and bearings - examin
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29.2 Fitting centre main bearing sh
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35.9 Camshaft sprocket (later type)
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Chapter 2 Part B: Engine repair pro
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4.5 Two lengths of metal used to lo
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9 Oil pump - refitting 3 Refitting
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guide the cylinder head into positi
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Chapter 2 Part C: Engine repair pro
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Stem diameter: Inlet . . . . . . .
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1 General information The 1.6 and 1
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26 The engine/gearbox unit is now r
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9.6 Intermediate sprocket timing ma
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and tappet is required. Label the c
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13.1 Sump, oil pump and oil filter
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17 Oil filter - renewal Refer to Ch
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30.3a Fitting flanged type centre m
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etween the camshaft and intermediat
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Chapter 2 Part D: Engine repair pro
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1 General information The 1.8 litre
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Chapter 3 Cooling, heating and air
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1 Radiator 2 Fan ring 3 Expansion t
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2.2 Removing expansion tank cap 2.4
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Refitting 8 Refitting is a reversal
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8.3a Pulling free heater/ventilatio
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11 Air conditioning system compress
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Chapter 4 Part A: Fuel and exhaust
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Carburettor-1.6 litre Pierburg/Sole
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3.6 Air cleaner components - 1.6 an
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6.1 Fuel reservoir location - 1.3 l
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etaining clip and then disconnect t
Page 95 and 96: Fuel and exhaust systems - carburet
Page 99 and 100: 15.10 Idle speed (A) and mixture (B
Page 101 and 102: 15.53 Checking choke valve gap (wid
Page 103 and 104: 17.10 Accelerator pump check prepar
Page 105 and 106: 18.3a Unscrew the bolts . . . 18.3b
Page 109 and 110: Chapter 4 Part B: Fuel and exhaust
Page 111 and 112: Fuel supply The fuel pump operates
Page 113 and 114: 4 Switch off all electrical consume
Page 115 and 116: 12.5 Cold acceleration enrichment s
Page 117 and 118: 17 Pressure relief valve - removal,
Page 119 and 120: Fuel and exhaust systems - K-Jetron
Page 121 and 122: Chapter 4 Part C: Fuel and exhaust
Page 123 and 124: 1 To ignition control unit 2 Intake
Page 125 and 126: 6.3 Throttle valve switch adjustmen
Page 127 and 128: Chapter 4 Part D: Fuel and exhaust
Page 129 and 130: 1.0b Mono-Jetronic system inlet man
Page 131 and 132: distance of 4.0 mm by the operating
Page 133 and 134: Chapter 4 Part E: Fuel and exhaust
Page 135 and 136: 3.4 CO analyser and connecting pipe
Page 137 and 138: feed line attachment to the gravity
Page 139 and 140: Chapter 4 Part F: Fuel and exhaust
Page 141 and 142: A Front crankcase ventilation valve
Page 143 and 144: 12.1 Fuel pump and filter component
Page 145: Chapter 5 Part A: Ignition system -
Page 149 and 150: 7.4 Crankshaft pulley mark (A) timi
Page 151 and 152: Chapter 5 Part B: Ignition system -
Page 153 and 154: Ignition system - transistorised ty
Page 155 and 156: 6.4a TDC blanking plug - manual gea
Page 157 and 158: 7.5 Vacuum unit removal 7.7 Hall se
Page 159 and 160: Chapter 5 Part C: Ignition system -
Page 161 and 162: 6.2 Signal check method from Hall s
Page 163 and 164: Chapter 5 Part D: Starting and char
Page 165 and 166: 4.3 Battery retaining clamp and bol
Page 167 and 168: Chapter 9 Braking system Contents B
Page 169 and 170: 3 Use an Allen key and unscrew the
Page 171 and 172: 3.18 Rear brake caliper components
Page 173 and 174: 4.15 . . . followed by the outer wa
Page 175 and 176: 13 Refit the hydraulic pipe and tig
Page 177 and 178: 19 This method is particularly effe
Page 179 and 180: Chapter 10 Suspension and steering
Page 181 and 182: 1081 VW Golf & Jetta 1.1 Front susp
Page 183 and 184: 3.2 Front suspension camber adjustm
Page 185 and 186: 8.4 Removing rear suspension strut
Page 187 and 188: 11.3b Removing steering wheel centr
Page 189 and 190: 14.4 Steering tie-rod bellows and r
Page 191 and 192: 1081 VW Golf & Jetta Suspension and
Page 193 and 194: Removal 2 To remove the pump unit,
Page 195 and 196: Chapter 11 Bodywork and fittings Co
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Repair of rust holes or gashes in b
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hand. A largish screwdriver will ju
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14 Door trim panel - removal and re
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15.3 Removing interior door handle
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22.4 Front bumper bracket securing
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6 Renew any retaining screw locatio
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28.9 Sunroof adjustment dimensions
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31.8 Front seat guide fixing - from
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Chapter 12 Body electrical systems
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k) Never use an ohmmeter of the typ
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6 Headlamp range control - removal
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4 If the indicators do not function
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17.2a Instrument panel unit compone
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Component testing Voltage stabilise
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3 Ease the wiper arm from the spind
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29 Windscreen wiper linkage - remov
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1081 VW Golf & Jetta Wiring diagram
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1081 VW Golf & Jetta Wiring diagram
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Relays (typical) 1 Vacant 2 Intake
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1081 VW Golf & Jetta Diagram 3 Ligh
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1081 VW Golf & Jetta Diagram 7 Brak
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1081 VW Golf & Jetta 12 Diagram 12
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1081 VW Golf & Jetta Diagram 20 Ele
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1081 VW Golf & Jetta Diagram 57 Glo
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VW MKII A2 MK2 Golf Jetta Fox Service Manual - VAGLinks.com

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