Workshop Manual

8.4 INSPECTION OF THE AIR INTAKE MANIFOLD

Inspect as follows:

1. Visually inspect the manifold for any cracks, dents or other damage. Pay particular

attention to the bolt areas.

[a] If a crack is found, replace the intake manifold.

[b] If no cracks are found, reuse the intake manifold.

2. Inspect the manifold mating surface for imperfections that could affect its sealing to

the cylinder head.

[a] If the manifold mating surface has imperfections, replace the intake manifold.

[b] If the manifold mating surface is not damaged, reuse part.

3. Laying a 0.5 cm (20 in) long by 6 mm (1/4 in) wide straight edge across the intake

manifold, check the mating ports surfaces for warping.

[a] If all port ﬂange area measurements are less than 0.127 mm (0.005 in), the m anifold

is reusable and can be reinstalled with new gaskets.

[b] If the manifold does not meet this requirement, the manifold must be replaced.

All information subject to change without notice.