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Technical Training
Job Aid
Engine Timing: LF 2.0L, L3/L3T 2.3L
LF 2.0L & L3/L3T 2.3L Engine Timing 1 Updated: 6/26/2008
Models
2001-present B2300 B-Series Truck (L3 2.3L)
2003-present MAZDA6 (L3 2.3L)
2004-present MAZDA3 (LF 2.0L / L3 2.3L)
2005-present Tribute (L3 2.3L)
2006-present MAZDASPEED6 (L3T 2.3L DISI Turbo)
2006-present MX-5 Miata (LF 2.0L)
2007-present CX-7 (L3T 2.3L DISI Turbo)
2007-present MAZDASPEED3 (L3T 2.3L DISI Turbo)
Description
Vehicles with any of the following symptoms may have slipped timing:
DTC P0340
Lack of power
No start/engine seized.
The LF and L3 engines are interference engines. If the timing slips the valves may contact the
pistons. Verify base camshaft/crankshaft timing and correct if necessary. If the engine runs
rough after correcting cam timing, perform a compression test. If compression is low, perform a
cylinder leakdown test and determine leakage. Replace the cylinder head if necessary.
Follow specific procedures to time LF 2.0L and L3/L3T 2.3L engines. Timing the LF / 2.0L
engine, the L3 and L3T / 2.3L engines must be done following specific procedures. This Job
Aid explains how to verify base engine timing (relation of intake camshaft, exhaust camshaft,
crankshaft sprocket and crankshaft pulley) and how to correct timing if it is incorrect. Do not skip
any steps and always begin by Inspecting Engine Timing on page 3.
NOTE
The camshaft, crankshaft, crankshaft sprockets and crankshaft pulley are friction-fit
components. Loosening any of these components requires re-timing the camshafts or
crankshaft. Failure to properly re-time the engine will result in severe engine damage.
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Inhaltsverzeichnis

Seite 1 - No start/engine seized

Technical Training Job Aid Engine Timing: LF 2.0L, L3/L3T 2.3L LF 2.0L & L3/L3T 2.3L Engine Timing 1 Updated: 6/26/2008 Models 2001-pres

Seite 2

Technical Training LF 2.0L & L3/L3T 2.3L Engine Timing 10 Updated: 6/26/2008 15. For vehicles with Variable Valve Timing (VVT) including MA

Seite 3

Technical Training LF 2.0L & L3/L3T 2.3L Engine Timing 11 Updated: 6/26/2008 16. Place an M6 bolt (6mm X18mm) through the crankshaft pulley i

Seite 4

Technical Training LF 2.0L & L3/L3T 2.3L Engine Timing 12 Updated: 6/26/2008 18. Review the notes you made on the repair order and determine

Seite 5

Technical Training LF 2.0L & L3/L3T 2.3L Engine Timing 13 Updated: 6/26/2008 22. Install the plug bolt. Tighten to 18-22 Nm (13.3-16.2 ftlbf

Seite 6

Technical Training LF 2.0L & L3/L3T 2.3L Engine Timing 14 Updated: 6/26/2008 This page is intentionally blank.

Seite 7

Technical Training LF 2.0L & L3/L3T 2.3L Engine Timing 15 Updated: 6/26/2008 Correcting Crankshaft Pulley Timing Only 1. Remove camshaft al

Seite 8

Technical Training LF 2.0L & L3/L3T 2.3L Engine Timing 16 Updated: 6/26/2008 4. Remove the crankshaft pulley bolt. Replace the crankshaft pu

Seite 9

Technical Training LF 2.0L & L3/L3T 2.3L Engine Timing 17 Updated: 6/26/2008 6. Verify camshaft timing. Make sure the camshaft alignment pl

Seite 10 - Technical Training

Technical Training LF 2.0L & L3/L3T 2.3L Engine Timing 18 Updated: 6/26/2008 9. Install the plug bolt. Tighten to 18-22 Nm (13.3-16.2 ftlbf

Seite 11

Technical Training LF 2.0L & L3/L3T 2.3L Engine Timing 19 Updated: 6/26/2008 Correcting Camshaft or Both Camshaft and Crankshaft Timing 1.

Seite 12

Technical Training LF 2.0L & L3/L3T 2.3L Engine Timing 2 Updated: 6/26/2008 Special Service Tools M6 Bolt 6mm X 18mm (0.23 in X 0.7 in) 3

Seite 13

Technical Training LF 2.0L & L3/L3T 2.3L Engine Timing 20 Updated: 6/26/2008 3. Rotate the crankshaft clockwise using the crankshaft pulley

Seite 14

Technical Training LF 2.0L & L3/L3T 2.3L Engine Timing 21 Updated: 6/26/2008 6. Use a 23mm open end wrench to hold the exhaust camshaft hexa

Seite 15

Technical Training LF 2.0L & L3/L3T 2.3L Engine Timing 22 Updated: 6/26/2008 7. Use a 23mm open end wrench to hold the intake camshaft hexag

Seite 16

Technical Training LF 2.0L & L3/L3T 2.3L Engine Timing 23 Updated: 6/26/2008 8. Rotate the exhaust camshaft and intake camshaft until the ca

Seite 17

Technical Training LF 2.0L & L3/L3T 2.3L Engine Timing 24 Updated: 6/26/2008 10. Use a 23mm open end wrench to hold the intake camshaft hexa

Seite 18

Technical Training LF 2.0L & L3/L3T 2.3L Engine Timing 25 Updated: 6/26/2008 12. Torque bolts 1 through 18 (8mm) in the sequence indicated t

Seite 19

Technical Training LF 2.0L & L3/L3T 2.3L Engine Timing 26 Updated: 6/26/2008 16. Rotate the crankshaft pulley until you can insert the M6 bo

Seite 20

Technical Training LF 2.0L & L3/L3T 2.3L Engine Timing 27 Updated: 6/26/2008 18. If necessary, adjust the alignment of the CKP sensor centerl

Seite 21

Technical Training LF 2.0L & L3/L3T 2.3L Engine Timing 28 Updated: 6/26/2008 19. Verify camshaft timing; make sure camshaft alignment plate S

Seite 22

Technical Training LF 2.0L & L3/L3T 2.3L Engine Timing 29 Updated: 6/26/2008 22. Install the plug bolt. Tighten to 18-22 Nm (13.3-16.2 ftlbf)

Seite 23

Technical Training LF 2.0L & L3/L3T 2.3L Engine Timing 3 Updated: 6/26/2008 Inspecting Engine Timing 1. Remove the lower engine splash shie

Seite 24

Technical Training LF 2.0L & L3/L3T 2.3L Engine Timing 30 Updated: 6/26/2008 Procedure complete, stop here. This page

Seite 25

Technical Training LF 2.0L & L3/L3T 2.3L Engine Timing 4 Updated: 6/26/2008 A. CX-7: remove the two plastic clips securing the intercooler sh

Seite 26

Technical Training LF 2.0L & L3/L3T 2.3L Engine Timing 5 Updated: 6/26/2008 D. Loosen the bypass outlet hose clamp. E. Loosen the hose cla

Seite 27

Technical Training LF 2.0L & L3/L3T 2.3L Engine Timing 6 Updated: 6/26/2008 F. Loosen the hose clamp at the intercooler outlet where it conne

Seite 28

Technical Training LF 2.0L & L3/L3T 2.3L Engine Timing 7 Updated: 6/26/2008 7. Remove the accessory drive belt by turning the tension bolt (

Seite 29

Technical Training LF 2.0L & L3/L3T 2.3L Engine Timing 8 Updated: 6/26/2008 13. Install the crankshaft timing peg SST 303-507. NOTE Installi

Seite 30

Technical Training LF 2.0L & L3/L3T 2.3L Engine Timing 9 Updated: 6/26/2008 14. Using the crankshaft pulley bolt (21mm), turn the crankshaft

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