The Perkins 1006 is a 6-cylinder diesel engine used across a range of agricultural, industrial and commercial applications. Correct torque settings and valve clearances help protect the cylinder head, bearings, fasteners and gasket surfaces during rebuild or service work.
Engine Specifications
EnginePerkins 1006
Bore100.00 mm
Stroke127.00 mm
Capacity6000 c.c.
Cylinders6 Cyl
BuildYA, YB, YC, YD, YE
Workshop note: The original sheet lists compression as suitable for Natural and Turbo applications. Always verify the engine build code before ordering parts or carrying out major engine work.
Valve Clearance Settings
Valve clearances should be checked with the engine cold unless the service manual for the exact build code states otherwise.
| Valve Type | Condition | Clearance |
|---|---|---|
| Inlet valve | Cold | 0.20 mm |
| Exhaust valve | Cold | 0.45 mm |
Torque Settings
The torque values below are presented from the supplied Perkins 1006 torque sheet. Blank fields are kept as dashes so incomplete source data is not accidentally treated as a confirmed setting.
| Component | Stage | Nm | lbft | Degrees |
|---|---|---|---|---|
| Head bolts | Stage 1 | 110 | 80 | — |
| Head bolts | Stage 2 | — | — | — |
| Main bearings | Stage 1 | — | — | — |
| Main bearings | Stage 2 | — | — | — |
| Big end nuts/bolts | Stage 1 | — | — | — |
| Big end nuts/bolts | Stage 2 | — | — | — |
| Flywheel bolts | — | — | — | — |
Cylinder Head Tightening Sequence
Use the correct cylinder head bolt tightening sequence to apply even clamping pressure across the head and gasket.
Illustrative sequence placeholder
10
6
2
4
8
12
14
13
11
7
3
1
5
9
Before You Tighten
- Clean all threads and seating faces before assembly.
- Use a calibrated torque wrench and angle gauge where required.
- Follow the official tightening sequence for the exact engine build.
- Replace stretch bolts or damaged fasteners where specified.
- Confirm lubrication requirements before applying torque.
- Recheck valve clearance after related valve train work.