Discovery 1 Torque Values

Torque Values
Discovery 1

Land Rover provides torque values for most all of the fittings on the trucks in the service manual. However, these are grouped at the end of each section of the manual, and are specified in Newton meters. Like many modern-day Land Rover enthusiasts, I use a PDF of the manual for repairs, so it can be a real pain to sort through and find the values in an 800-page document. Also, my torque wrench is in foot pounds, so I always find myself converting online.

Thus, this list of all of the torque values for a Discovery 1 is as much for me as everyone else. This covers trucks built from March 1994 to the end of run in 1999, known in some parts as the “300-series.” There are a good number of changes between these and the earlier “200-series” trucks built from 1989 to the very beginning of 1994, especially concerning things like axles. All North American Specification D1s are 300-series.

Measurements are provided in both the factory’s Newton meters, and a conversion to foot pounds, rounded up to the nearest whole number.

 

3.9 Rover V8 (1994-1995)

Nm

ft lbs

Adaptor Plate to Crankshaft 84 XX
Generator and Power Steering Mounting Bracket to Cylinder Head 30 XX
Cylinder Head (Stage 1) 20 XX
Cylinder Head (Stage 2) Further 180 degrees +/- 5 degrees
Drive Plate to Converter 39 XX
Engine Mountings to Engine and Chassis 55 XX
Engine Mounting Rubbers to Brackets 30 XX
Flex Plate to Crankshaft Adapter Plate
(Loctite 270)
41 XX
Flywheel to Crankshaft Bolts
(Loctite 270)
78 XX
Lifting Eye to Cylinder Head 39 XX
Main Bearing Cap Rear Bolts
(Coat threads in lubricant EXP16A)
92 XX
Oil Sump Drain Plug 40 XX
Oil Sump to Cylinder Block 18 XX
Rocker Cover to Cylinder Head 9 XX
Rocker Shaft Bracket to Cylinder Head 38 XX
Spark Plug 21 XX
Starter Motor Attachment 44 XX
Metric M5 6 XX
Metric M6 9 XX
Metric M8 25 XX
Metric M10 45 XX
Metric M12 90 XX
Metric M14 105 XX
Metric M16 180 XX
UNC/UNF 1/4 9 XX
UNC/UNF 5/16 24 XX
UNC/UNF 3/8 39 XX
UNC/UNF 7/16 78 XX
UNC/UNF 1/2 90 XX
UNC/UNF 5/8 136 XX

Fuel System

Nm

IACV/Idle Stepper Motor 20 XX
All Hose Clamps 1.3 XX
Fuel Feed Pipe – Hose to Fuel Rail 22 XX
Fuel Filter 31 XX
Evaporative Loss Control System
All Hose Clamps
1.7 XX

Cooling System

Nm

Oil Cooler Pipes 30 XX
Radiator Filler Plug (Plastic) 6 XX

Brakes (ABS)

Nm

ft lbs

Master Cylinder to Servo 26 XX
Servo to Pedal Box 26 XX
Brake Caliper to Swivel Pin Housing 82 XX
Caliper Bleed Screws 15 XX
Brake Pipe Connections to:
ABS Modulator
Calipers
Master Cylinder
15 XX