The Plus 8 

Workshop Manual


 
 
 

"Old fashioned it may be, but the Plus 8 must rank as one of the
world's great cars. Elegant yet electrifying, it marries such disparate
elements like no other car. Peter Morgan has been careful to preserve that
and we think he is right. When the world is full of standardized shoe boxes,
 it's cars like the Plus 8 and men like Peter Morgan we will miss the most."
                                                                        Motor  Magazine
 

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INDEX

COOLING & EXHAUST
EFI
ENGINE
GEARBOX
HISTORY
IGNITION
MISCELLANEOUS

COOLING AND EXHAUST

Aluminum Radiator
Catalyst Removal Warning
Coolant Hoses
Coolant Temperature Sensor
Cooling Your Morgan Generally
Coolant
Cooling a Plus 8 (from the EXPERTS PANEL)
Cooling a Big Plus 8
Exhaust Systems
Exhaust Manifold Bolts (Removing the)
Fan Belt (Serpentine)
Ported Heads (Before & after)
Rad Fan (Installing a)
Rad Fan Bypass Switch
Twin Exhaust System (from the EXPERTS PANEL)
Upgraded Exhaust System
A Rover V8 Defect that Spikes Coolant Temperatures
Water Pump Comparisons (Pre-1987 Plus 8s)
Water Pump Problem
 

EFI

 Converting to a Later Morgan EFI system
Converting to Morgan Hotwire EFI II
Introduction to EFI(a Basic Guide)
Introduction to Rover Fuel Injection
Holly Pro-Injectiom
Keeping Your EFI Plus 8 on the Road
Twin Plenum (Siamese style)


FLAPPER  PLUS 8 EFI
MANUAL
 (3.5 L = 1983-1990)

 
HOTWIRE PLUS 8 EFI
MANUAL
 (3.9 & 4.6L = 1990-2000)
or
(3.9 =1990-1996 overseas)

 
GEMS  PLUS 8 EFI
MANUAL
 (4.0 = 2000-2004)
or
4.0 & 4.6 = 1998-2004  overseas)

ENGINE

Air Filter
Air Filter (Installing a GEMS Air Filter)
Alternator (Rebuilding the)
Alternator (Installing a Bosch alternator)
Alternator(Installing a GM alternator)
Basics I Bores, Strokes & Displacement
Basics II Bores, Strokes & Displacement
Block Number I - Identifying Your Engine
Block Numbers II (All Rover/LR)
Block Numbers (All Buick 215)
Buick 215 and Olds Engine Block Identification
A Performance Camshaft
A Tired Camshaft and Lifters
Carburettor Recommendations (from the EXPERTS PANEL)
Carburettor Conversion (Stromberg's to SUs)
Catalyst Removal Warning
Cleaning an Aluminum Engine
Cleaning a Plus 8 Engine and its Components
Converting a GEMS or MOTRONIC Back to Distributors
4.0/3.9 Differences and Improvements
4.0/4.6/4.2/3.9 Block Cracking
Engine Mounts
Fan Belt (Serpentine)
Firing Order
 Fuel Filter
Fuel Tank(1983 Plus 8 Carb)
Fuel Tank (1984 Plus 8 EFI)
Heads (Plus 8)
Head Gaskets
Head Gaskets- Tin
Head Gaskets - Composite
Head Gasket Issue (that spikes coolant temperatures)
LPG or Propane Conversion(from the EXPERTS PANEL)
Mounts
Oil and a Plus 8
Oil Filter Changing
Oil Filter Changing II
Oil Pressure Isolater Switch
Oil Pressure
Oil Pressure Sensor
Oil Pump Base (repair)
Oil Pump Priming
Oil Routing
Oil and ZDDP
Other Power Possibilities
Engine Paint Codes
Propane to Petrol Reconversion
Removing the Engine (and Gearbox from a Plus 8)
Serial Numbers (where they are)
Spark Plug Warnings
Starter(Checking Your)
Stroking the Engine
Stroking the Engine to Greater Capacities
Timing Chain
Timing Chain Problem
Timing Covers
Torque & Tuning Data Settings
Torquing the Newer Stretch Head Bolts
Tuning SU CarbsWeber 500 Carb
Valve Seals(Replacing)
Valve Springs (Replacing)
Water Pump Comparisons (Pre-1987 Plus 8s)
Weber 500 Installation Videos
Weber 500 Troubleshooting Videos
Weber/Carter/Edelbrock 500  Carb Manual
Weber Part Numbers and Diagrams
ZDDP

GEARBOX

Early Clutch Part Numbers (Girling)
CLUTCH SLAVE CYLINDERS (Special Note)
Diagram of a Rover 5 Speed Gearbox
Diagram of the BTR Axle
Gearbox Options (Retro-fitting)
GearBox Oil LT77
GearBox Oil R380
Gearbox Oil (Changing)
LT77 5 Speed Gearbox Manual
LT77 Gearbox Oils
LT77 Versions (which one?)
MOSS BOXES (Supplier of ALL parts)
R380 Close Ratio Gear Set
R380 5 Speed Gearbox Manual
R380 Gearbox Oils
Replacing the Rear Gearbox Seal
Replacing the Salisbury Pinion Seal
Remote/Gear Lever Issues (5 speeds)
Removing the Gearbox (and Engine from a Plus 8)
Rover 4 Speed (from the EXPERTS PANEL)
Rover V8 4-Speed Gearbox/Bellhousing Images
Rover V8 5-Speed Gearbox/Bellhousing Images
Salisbury Axle Diagram
Salisbury Differential Oil Seal Dimensions
Salisbury Pinion Seal
Smith's Speedo Repair
Transmission Conversions

HISTORY

History
History II
The 215 Alternative  (HotRod  03/'85)
The 215
Performance Data
Power of a Morgan Plus 8: Facts & Fiction
Made for  the USA (1971-2000)
BUICK-OLDSMOBILE-EARLY ROVER COMPARISON
 

IGNITION
Alternator (Rebuilding the)
Ballast Resistor Watchpoint
Converting a GEMS or MOTRONIC Back to Distributors
Distributor and Coil (Upgrading the)
Distributors  (more alternatives)
Distributor (Fitting a Mallory to an early Plus 8)
Plus 8 Distributor II (Wiring diagram for fitting a Mallory to a Plus 8)
Changing the Plus 8 distributer
Fuel Pump Watchpoint (Jag=Bosch)
Ignition Amplifier (A heating problem)
Ignition Key
Ignition Leads
Ignition Timing
Lucas Distributors (setting up the 8 cylinder)
Misfires on the Pre-Distributorless System
Mallory Unilite
MSD (Fitting one)
Spark Plug Warnings
Starter(Checking Your)

MISCELLANEOUS

Lucas Girling Part Numbers for early Plus 8s
A Rover V8 Book List
Servos(Notes on the early Plus8's))
Upgrading the Steering on an Earlier Morgan Plus 8 (from the EXPERTS PANEL)
Wire Wheels and Plus 8s (the myth)(from the EXPERTS PANEL)
Wire Wheels and Plus 8s (2)(from the EXPERTS PANEL)
Wiring Diagrams
 
 

It is understood that the information contained herein is offered
without any undertaking whatsoever and no warranty is
suggested or may be implied on the part  GoMoG or the authors.


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