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Full Description
All models of car have their own common faults and foibles as well as the general ills that can afflict all cars. This book represents the collected knowledge of many MGB experts and allows problems to be identified and assessed quickly, and then to be dealt with in the most appropriate way.
Contents
Foreword 5 Introduction, about the author & acknowledgements 6 Introduction 6 About the author 6 Acknowledgements 6 Using this book 7 Replacement parts 7 Chapter 1. Engine will not start from cold 8 Engine cranks at or close to its normal vigour 8 Engine has been reluctant to start for some time 8 Engine suddenly reluctant to start 9 Engine cranks normally and fires, but will not run 10 Engine cranks normally but does not fire 11 US cars with Stromberg carburettor 15 Engine cranks, but slowly 15 Engine will not crank 16 Starter motor does not activate 16 Starter motor whirs, but engine doesn't crank 17 Chapter 2. Engine ran but stopped and will not restart 19 Engine stops suddenly 19 Engine splutters, runs badly before stopping 20 Overheating, steam from engine/hot smells 21 Engine failure preceeded by loud mechanical noises and/or low oil pressure 21 Chapter 3. Engine runs badly 22 Ignition system problems 22 Fuel supply problems 25 Chapter 4. Engine reluctant to start when hot 27 Over-rich fuel mixture 27 Over-weak fuel mixture 30 Coil ballast resistor problems 30 Chapter 5. Fuel pump does not operate 31 Fuel pump upgrades 34 Chapter 6. Engine noises 36 Squealing 36 Grinding 36 Screaming 37 Tinkling 37 Tapping or rattling (from front of engine) 37 Ticking (from cylinder block) 38 Rattling or ticking (from top of engine) 38 Popping and banging after ignition switched off (running-on) 40 Loud tapping (and low oil pressure) 41 Rumble from deep in engine (and low oil pressure) 42 Rattle during deceleration 42 Whistling or wheezing 42 Popping or loud bangs from exhaust 43 Sizzling noise 43 Jingling or thumping from beneath car 43 Loud exhaust noises from beneath car or engine compartment 44 Chapter 7. Engine oil pressure low, filter upgrade & oil loss 45 Oil pressure reading low 45 Oil loss (without exhaust smoke) 47 Oil filter upgrade 47 Oil consumption high (with exhaust smoke) 48 Chapter 8. Clutch problems 49 Squealing 49 Difficult gearchanging/clutch drag 50 Clutch slip 52 Clutch replacement tips 52 Chapter 9. Transmission problems 54 Gearbox (transmission) faults 54 Rattle, swishing or zizzing noises from gearlever/gearstick 54 Ticking noise while reversing 55 Whining noise ("gear whine") 55 Difficult or noisy gearchanging 56 Overdrive faults 57 Does not work at all 57 Slow to engage, will not engage 57 Intermittent operation 58 Suddenly stops working 58 Engine revs drop to idle speed on over-run 59 Won't disengage 59 Overdrive tips 60 Gearbox (transmission) upgrades 60 Adding an overdrive unit 60 Converting auto-transmission to manual transmission 60 Chapter 10. Front suspension, steering, wheels & tyres 62 Rattle, clunk or thump when you drive over a bump 62 Upgrading suspension bushes 65 Stiff or unusually heavy steering 67 Front wheel wobble, vibration 67 Steering vague/car wanders 69 Excessive play/lash at steering wheel 70 Steering shake or vibration 71 Rapid and/or uneven tyre wear 71 Clunk from front of car when brakes applied 71 Tyres deflate (wire wheel cars) 72 Converting to wire wheels 72 Clicking noise that varies with road speed 72 Anti-roll bar bushes 72 Chapter 11. Fuel smells 73 Fuel smell at front of car 73 Fuel smells from beneath the car 74 Fuel smell at rear of car 75 Fuel smell after something has struck underside of car 78 Chapter 12. Propshaft, rear axle, rear suspension and rear wheels 79 Clunk from rear of car when starting off or changing gear (wire wheels or "knock-on" alloys) 79 Clunk from rear of car when starting off or changing gear (bolt-on wheels) 80 Clunk from rear of car on take off 80 Clunk on take off, ringing/whirring noise when underway and, possibly, vibration too 81 Rattling or clunking from rear when underway 82 Dull thud from rear when a wheel hits a bump 84 Clacking noise from rear on acceleration or decceleration 86 Clunking and whining/wowing noise from rear axle 86 Rubbing noise from rear wheels 87 Oil leaks from rear axle 87 Chapter 13. Overheating and water loss 89 Temperature gauge reads higher than usual 89 Temperature gauge suddenly reads "H" (hot) 93 Coolant is being lost 94 Chapter 14. The heater doesn't work very well 96 Chapter 15. Carburettors and correct fuel/air mix 100 Common fault symptoms/problems 100 The car has failed an emissions test 100 Excessive fuel consumption/erratic running/high emissions 101 Carburettors difficult to balance 103 Idle/tickover speed is inconsistent 103 Idle/tickover is erratic/sparkplug deposits different colours/poor fuel economy 104 Engine oil smells of fuel/over-rich fuel supply 105 Backfiring/spitting back through the carburettors 106 Engine won't run properly without some choke 106 SU HIF specifics 106 Stromberg CD175-5T specifics 107 The engine will idle but runs badly at higher speeds 108 The car is difficult to start 108 The "Cat" (catalytic convertor) is getting very hot 108 Engine hesitates, spits and coughs 108 HC reading too high 108 Emissions control equipment specifics 109 Oil is leaking from oil filler cap/engine gaskets/crankshaft oil seals 109 Engine is running rich, with high hydrocarbon emissions and/or fouled sparkplugs 109 High engine oil consumption (but engine not worn) 109 Impossible to obtain a consistent idle/tickover. 110 Chapter 16. Brakes 111 Brake squeal (front brakes) 111 Grinding noise when braking 112 "Clanking" noise when brake pedal released 112 Steering wheel shakes/brake pedal judders when braking 112 Brakes 'bind' (don't free completely after application) 113 Brake pedal travel excessive/feels 'spongey' 117 Brakes require a lot of pedal pressure 119 Brakes less effective than usual/pull to one side 119 Brake pedal slowly sinks to floor when constant pressure applied 120 Brake failure 120 Brake failure (temporary) 121 Brake warning light illuminates 122 Handbrake (parking brake) performance poor 122 Chapter 17. Battery, charging system and fuses 123 Battery performance poor 123 Battery not being fully recharged 125 Fuse has blown/fuses general 127 Chapter 18. Instruments (gauges) 129 Gauge or gauges give faulty readings/stop reading 129 Chapter 19. Other electrical components 135 Windscreen (windshield) wiper problems 136 Cooling system fan problems 139 Lights and horn problems 141 Starter motor problems 142 Direction (turn signal) indicator problems 142 Hazard warning light problems 142 Heated rear window (defogger) problems 143 Engine won't switch off 143 Reversing (back-up) light problems 144 Heater fan problems 144 Windscreen (windshield) washers don't work 144 Chapter 20. Body, paint, chrome and interior trim 146 Rust prevention, maintenance and repair of bodywork 146 Preventive maintenance 146 Wing (fender), front, corrosion 147 Front wing (fender), inner, corrosion 149 Door, corrosion or impact damage 149 Sill (rocker), outer, corrosion 152 Rear hatch leaks (GTs) 153 Windows mist up (fog) frequently 153 Body noises, elimination 154 Whistling at high speed 154 Buzzing from beneath dashpanel (fascia) 154 Tinkling from vicinity of door mirrors 154 Rattling from outside car 154 Paint and chrome maintenance and rechroming 154 Paintwork repairs 154 Paintwork protection 154 Chrome - maintenance and rechroming 155 Protecting chromework 155 Interior trim panels, seat repairs and carpet replacement 155 Seat has become floppy 155 Seat material is torn or worn 156 Carpets damaged or worn 160 Door trim panels damaged 161 Chapter 21. Hood (soft top) 162 Bird droppings on hood 162 Hood is torn 163 Rear windows difficult to see through 163 Hood leaks 163 Hood oil stained 164 Hood colour has faded 165 Hood zip stiff 165 Hood frame stiff 165 Hood worn out or damaged 165 Chapter 22. Official roadworthiness tests 168 Body corrosion 168 Kingpin wear 169 Front suspension, general 169 Other items to check 169 French testing procedures 170 German testing proceedures 171 American testing procedures 171 Chapter 23. Conclusion, spares kit & clubs 173 Get-you-home spares kit 173 Clubs 173 Index 174
