Chrysler Stratus LHD 1997, Интерактивное электронное руководство по эксплуатации

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(3) Measure the clearance between the valve guide
and valve stem. If the service limit is exceeded,
replace the valve guides, valves or both.
(4) Check for even contact (at face center) with
valve seat, Point C.
(5) Check margin. Replace valve if margin is out of
specification (Fig. 109).
(6) Check valve guide height (Fig. 107).
(7) Measure valve stem to guide clearance. Refer
to specification (Fig. 109).
(8) Measure Valve spring free length and if the
spring is square (Fig. 108). Refer to (Fig. 109) for
specifications.
VALVE SEAT INSPECTION
Inspect the valve seat with Prussian blue to deter-
mine where the valve contacts the seat. To do this,
coat valve seat LIGHTLY with Prussian blue then
set valve in place. Rotate the valve with light pres-
sure. If the blue is transferred to the center of valve
face, contact is satisfactory. If the blue is transferred
to top edge of the valve face, lower valve seat with a
15 degrees stone. If the blue is transferred to the bot-
tom edge of valve face raise valve seat with a 65
degree stone (Fig. 110).
Fig. 106 Valve Inspection
C IS A SEAT CONTACT MARK AND IS NOT FULL WIDTH OF THE FACE MARGIN
Fig. 107 Valve Guide Height
Fig. 108 Valve Spring
LENGTH
Fig. 109 Valve Specifications
Fig. 110 Valve Seat Reconditioning
EXHAUST INTAKE
JA
2.5L ENGINE 9 - 131
CLEANING AND INSPECTION (Continued)