DES HAMMILL
CHAPTER 1: KNOW YOUR CARBURETOR - STRIPDOWN & INSPECTION
Know your carburetor - major
components
Chokes and auxiliary venturis
Idle mixture adjusting screws
Main jet, emulsion tube & air
corrector
Progression hole inspection
covers
Idle jet
Accelerator pump jets
Accelerator pump
Floats
Needle & seat
Stripdown - general advice
Cleaning components
Fuel enrichment devices
special note
Stripdown procedure
Fuel enrichment device
- blocking off discharge holes
(Weber only)
Inspecting components for wear
and damage
Weber & Dellorto
Weber only
Dellorto only
Difficult procedures
Clearing passageways
Throttle butterfly, spindle &
bearings - maintenance,
removal & refitting
Removing damaged threaded components
Removing jammed chokes and
auxiliary venturis
CHAPTER 2: REBUILDING
Needle valve & seat (Dellorto)
Floats & fulcrum pin (Dellorto)
Fulcrum pin - checking
Floats - checking
Floats & pin - fitting
Float level - setting (Dellorto)
Top cover (Dellorto)
Body components (Dellorto)
Needle valve & seat (Weber)
Floats & fulcrum pin (Weber)
Fulcrum pin - checking
-Floats - checking
Floats and fulcrum pin - fitting
Float level - setting (Weber)
Top cover (Weber)
Body components (Weber)
CHAPTER 3: FUEL
MANAGEMENT, AIR
FILTERS & RAM TUBES
Fuel filters
Fuel lines (pipes) & fittings
Air filters
Ram tubes (stacks)
Fuel pressure
CHAPTER 4: CHOOSING THE
COMPONENTS FOR YOUR
CARBURETOR/S
Components - initial selection
Choke size versus carburetor
size
Choke size - selecting
Idle jet - selecting
Idle jet codes (Weber)
Idle jet codes (Dellorto)
Idle jet & air bleed component
- selection
Idle mixture and progression
holes
Idle screw adjustment
procedure
Main jet - selection
Emulsion tube - selection
Air corrector - selection
Auxiliary venturi - selection
Accelerator pump jet
- selection
Accelerator pump intake/
discharge valve
Needle valve - selection
CHAPTER 5: MANIFOLD
PREPARATION &
CARBURETOR FITTING
Intake manifold - checking &
preparation
The importance of stud
alignment
Carburetor - checking fit
Anti-vibration mountings
Carburetor/s - fitting to
manifold
CHAPTER 6: TESTING
& SET-UP
Idle speed
Fuel level & needle valve
operation - checking
Throttle - initial adjustment
and synchronization
Throttle arm fit
Throttle - initial setting
(single carburetor)
Throttle - initial set-up &
synchronization multiple
carburetors)
Idle mixture - initial
adjustment
Throttle (linked throttle arm
type) - final synchronization
Throttle (bar & pushrod type)
- final synchronization
Full throttle check
Idle jet alteration (fuel component)
Ignition timing - general
Idle jets/air bleeds - final
selection
Weber
Dellorto
Idle mixture screws
- final setting
Accelerator pump jets
- final selection
CHAPTER 7: TESTING & PROBLEM SOLVING
Rolling road (dyno) testing
procedure
Track testing procedure
Solving problems
- low to mid-range rpm
Solving problems
- high rpm
Webers - fuel leakage from
fuel enrichment device
Webers - adapting for off-road
applications
Return springs
Tuning by exhaust gas co%
Maintenance
CHAPTER 8: JETTING/SETTING
EXAMPLES
BMC/Rover A-Series 1275cc
engine (Weber)
Ford 'Pinto' 2000cc SOHC
standard engine (Weber)
Ford 'Pinto' 2000cc SOHC
standard engine (Dellorto)
Vauxhall 2000cc 16v engine
(Dellorto)
Ford RS 2000cc SOHC Escort
Ford Sierra Cosworth 2000cc
(naturally aspirated)(Weber)
BMC B-Series 1900cc MGB
engine (Weber)
Toyota 4A-GE 1600cc 16-valve
MR2 engine (Weber)
MG 1940cc alloy 8 port
Magnette engine
Ford 1600cc Crossflow engine
(Weber)
Jaguar XK 3.8 litre engine
(Dellorto)
Ford 1628cc Crossflow engine
Ford 'Pinto' 2100cc engine fitted
to Formula 27 sports car
(Dellorto)
2000cc Ford Sierra Cosworth racing engine (Dellorto)
Ford 1760cc Crossflow engine
(Dellorto)
BMC/Rover 1275cc A-series engine
(Dellorto)
DETAILS OF COMPLEMENTARY
SPEEDPRO BOOKS
GLOSSARY OF TERMS
INDEX
CHAPTER 1: KNOW YOUR CARBURETOR - STRIPDOWN & INSPECTION
Know your carburetor - major
components
Chokes and auxiliary venturis
Idle mixture adjusting screws
Main jet, emulsion tube & air
corrector
Progression hole inspection
covers
Idle jet
Accelerator pump jets
Accelerator pump
Floats
Needle & seat
Stripdown - general advice
Cleaning components
Fuel enrichment devices
special note
Stripdown procedure
Fuel enrichment device
- blocking off discharge holes
(Weber only)
Inspecting components for wear
and damage
Weber & Dellorto
Weber only
Dellorto only
Difficult procedures
Clearing passageways
Throttle butterfly, spindle &
bearings - maintenance,
removal & refitting
Removing damaged threaded components
Removing jammed chokes and
auxiliary venturis
CHAPTER 2: REBUILDING
Needle valve & seat (Dellorto)
Floats & fulcrum pin (Dellorto)
Fulcrum pin - checking
Floats - checking
Floats & pin - fitting
Float level - setting (Dellorto)
Top cover (Dellorto)
Body components (Dellorto)
Needle valve & seat (Weber)
Floats & fulcrum pin (Weber)
Fulcrum pin - checking
-Floats - checking
Floats and fulcrum pin - fitting
Float level - setting (Weber)
Top cover (Weber)
Body components (Weber)
CHAPTER 3: FUEL
MANAGEMENT, AIR
FILTERS & RAM TUBES
Fuel filters
Fuel lines (pipes) & fittings
Air filters
Ram tubes (stacks)
Fuel pressure
CHAPTER 4: CHOOSING THE
COMPONENTS FOR YOUR
CARBURETOR/S
Components - initial selection
Choke size versus carburetor
size
Choke size - selecting
Idle jet - selecting
Idle jet codes (Weber)
Idle jet codes (Dellorto)
Idle jet & air bleed component
- selection
Idle mixture and progression
holes
Idle screw adjustment
procedure
Main jet - selection
Emulsion tube - selection
Air corrector - selection
Auxiliary venturi - selection
Accelerator pump jet
- selection
Accelerator pump intake/
discharge valve
Needle valve - selection
CHAPTER 5: MANIFOLD
PREPARATION &
CARBURETOR FITTING
Intake manifold - checking &
preparation
The importance of stud
alignment
Carburetor - checking fit
Anti-vibration mountings
Carburetor/s - fitting to
manifold
CHAPTER 6: TESTING
& SET-UP
Idle speed
Fuel level & needle valve
operation - checking
Throttle - initial adjustment
and synchronization
Throttle arm fit
Throttle - initial setting
(single carburetor)
Throttle - initial set-up &
synchronization multiple
carburetors)
Idle mixture - initial
adjustment
Throttle (linked throttle arm
type) - final synchronization
Throttle (bar & pushrod type)
- final synchronization
Full throttle check
Idle jet alteration (fuel component)
Ignition timing - general
Idle jets/air bleeds - final
selection
Weber
Dellorto
Idle mixture screws
- final setting
Accelerator pump jets
- final selection
CHAPTER 7: TESTING & PROBLEM SOLVING
Rolling road (dyno) testing
procedure
Track testing procedure
Solving problems
- low to mid-range rpm
Solving problems
- high rpm
Webers - fuel leakage from
fuel enrichment device
Webers - adapting for off-road
applications
Return springs
Tuning by exhaust gas co%
Maintenance
CHAPTER 8: JETTING/SETTING
EXAMPLES
BMC/Rover A-Series 1275cc
engine (Weber)
Ford 'Pinto' 2000cc SOHC
standard engine (Weber)
Ford 'Pinto' 2000cc SOHC
standard engine (Dellorto)
Vauxhall 2000cc 16v engine
(Dellorto)
Ford RS 2000cc SOHC Escort
Ford Sierra Cosworth 2000cc
(naturally aspirated)(Weber)
BMC B-Series 1900cc MGB
engine (Weber)
Toyota 4A-GE 1600cc 16-valve
MR2 engine (Weber)
MG 1940cc alloy 8 port
Magnette engine
Ford 1600cc Crossflow engine
(Weber)
Jaguar XK 3.8 litre engine
(Dellorto)
Ford 1628cc Crossflow engine
Ford 'Pinto' 2100cc engine fitted
to Formula 27 sports car
(Dellorto)
2000cc Ford Sierra Cosworth racing engine (Dellorto)
Ford 1760cc Crossflow engine
(Dellorto)
BMC/Rover 1275cc A-series engine
(Dellorto)
DETAILS OF COMPLEMENTARY
SPEEDPRO BOOKS
GLOSSARY OF TERMS
INDEX
Features
- New! Enlarged, revised and updated edition - complete with extra illustrations - of Veloce's best-selling SpeedPro title.
- New information on Dellorto carburettors
- All you could want to know about the world's most famous and popular high-performance sidedraught carburetors.
- Application formula gives the right set-up for YOUR car.
- Covers all Weber DCOE, DCO/SP & Dellorto DHLA carburetors.
- Strip & rebuild, tuning, jetting & choke sizes.
Description
All you could want to know about the most famous and popular high performance sidedraught carbs. Covers strip and rebuild, tuning, choke sizes and much more.
