VALVE, VALVE GUIDE INSPECTION [WITHOUT DIESEL PARTICULATE FILTER]

id0110f4506200

1. Measure the valve head margin thickness of each valve. Replace the valve if necessary.

Minimum margin thickness

IN: 0.8 mm {0.0315 in}

EX: 1.0 mm {0.0394 in}

2. Measure the length of each valve. Replace the valve if necessary.

Standard length

IN: 115.01-115.51 mm {4.528-4.547 in}

EX: 114.35-114.85 mm {4.502-4.521 in}

Minimum length

IN: 114.785 mm {4.519 in}

EX: 114.125 mm {4.493 in}

3. Measure the stem diameter of each valve in X and Y directions at the three points (A, B, and C) shown. Replace the valve if necessary.

Standard diameter

IN: 5.970-5.985 mm {0.2351-0.2356 in}

EX: 5.965-5.980 mm {0.2349-0.2354 in}

Minimum diameter

IN: 5.920 mm {0.2331 in}

EX: 5.915 mm {0.2329 in}

4. Measure the inner diameter of each valve guide in X and Y directions at the three points (A, B, and C) shown. Replace the valve guide if necessary.

Standard inner diameter

6.030-6.050 mm {0.2374-0.2381 in}

5. Measure the protrusion height (dimension A) of each valve guide without lower valve spring seat. Replace the valve guide if necessary.

Standard height

IN: 18.7-19.2 mm {0.737-0.755 in}

EX: 17.6-18.1 mm {0.693-0.712 in}