Camshaft

1. Inspect:

• Cam lobes Pitting/Scratches/Blue discoloration Replace.

2. Measure:

•Cam lobes length (a) and (b). Out of specification-»Replace.

A*

Cam lobe length:

Intake

(a) 40.62-40.72 mm

(1.599-1.603 in)

(b) 32.18 - 32.28 mm

(1.267-1.271 in)

Exhaust

(a) 40.62-40.72 mm

(1.599-1.603 in)

(g) 32.18-32.28 mm

(1.267-1.271 in)

(D ^

ROCKER ARM/ROCKER ARM SHAFT

1. Inspect: •Rocker arm shaft

Blue discoloration/Grooves-*Replace, then inspect lubrication system.

2. Inspect:

•Bore (rocker arm shaft) (T) •Cam lobe contact surface (5) •Adjuster surface (3) Wear/Pitting/Scratches/Blue discoloration -►Replace, then inspect lubrication system.

3. Measure:

•Arm-to-shaft clearance Out of specificationReplace as a set.

Arm-to-shaft clearance =

Outside diameter (rocker arm shaft) (§)

Arm-to-shaft clearance: 0.009 - 0.037 mm (0.0003 - 0.0015 in) < Limit: 0.10 mm (0.004 in) >

VALVE SPRING

1. Measure:

•Free length (a) (valve spring) Out of specification-*• Replace.

Free length (valve spring): Inner spring

39.9 mm (1.57 in) Outer spring

2. Measure:

•Compressed force (a) (valve spring) Out of specification-*Replace.

(b) Installed length

Compressed force (valve spring): Inner spring 10.7-12.3 kg at 33.6 mm (23.59 - 27.12 lb at 1.323 in) Outer spring 24.0-25.6 kg at 36.6 mm (52.91-56.44 lb at 1.441 in)

3. Measure: • Spring tilt (a) Out of specification-

Spring tilt: Inner spring

1.6 mm (0.063 in) Outer spring

TIMING CHAIN/CHAIN GUIDE/SPROCKET

1. Inspect:

•Timimg chain Stiff/Cracks-» Replace timing chain and sprocket as a set.

Was this article helpful?

0 0

Post a comment