Mitsubishi 4DQ5 Service Manual download pdf (Page 23)

'Valve springs

Inspect each spring for cracks, and check it for square-

ness, free length and as-installed length against these

specifications:

Specifications

Unit: mm (in.)

Item

Standard

Repair

limit

Valve spring free length

48.85

47.6

(·1.9232)

(1.874)

Valve spring squareness

1.5°, max

Load compress spring

to

initial working lenfth

19 ± 1

15

[43 mm (1.69 in.)

(41.9 ± 2.21)

(33.08)

kg(lb)

Exhaust manifold

If

the flange faces are

warped

by

more

than

0.2 mm

(0.0079 in.) when

checke<;l

as shown, grind

them

smooth

and flat.

If

any flange is

found

cracked, replace the

manifold_

Checking valve spring

Checking

valve

spring for squareness

Checking exhaust

manifold flange surface for flatness

-19

-

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