Chrysler Le Baron, Dodge Dynasty, Plymouth Acclaim. Manual — part 585

install the new cam plug to a depth of 0.5mm (0.020
inch) below the surface of the cylinder head.

(6) Replace air cleaner assembly.

CAMSHAFT END SEAL (PLUG) SERVICE —
OUT OF VEHICLE SERVICE

Install end seal plug with Special Tool MD998306.

(Fig. 13).

CYLINDER HEAD

REMOVAL

(1) See Timing System this group for disassembly

and remove camshaft sprockets.

Fig. 10 Assemble Rocker Arm and Shafts

Fig. 11 Distributor Drive

Fig. 12 Install Camshaft Oil Seal

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(2) See Camshaft Rocker Arms Removal.
(3) Remove upper intake manifold assembly. Refer

to Intake and Exhaust Manifolds, Group 11.

(4) Remove distributor.
(5) Remove exhaust manifolds and cross over Refer

to Intake and Exhaust Manifolds, Group 11.

(6) Remove cylinder head bolts in sequence shown

in (Fig. 14) and remove cylinder head.

INSPECTION

(1) Before cleaning, check for leaks, damage and

cracks.

(2) Clean cylinder head and oil passages.
(3) Check cylinder head for flatness (Fig. 15).
(4) Cylinder head must be flat within;

• Standard dimension = less than 0.05mm (.002
inch)
• Service Limit = 0.2mm (.008 inch)

• Grinding Limit = Maximum of 0.2 mm (.008 inch)
is permitted.

CAUTION: This is a combined total dimension of
stock removal from cylinder head if any and block
top surface.

Fig. 13 Install Camshaft End Seal—Plug

Fig. 14 Cylinder Head Bolt Removal Sequence

Fig. 15 Check Cylinder Head

Fig. 16 Cylinder Head Bolt Tightening Sequence

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INSTALLATION

(1) Clean surfaces of head and block, install head

gasket over locating dowels.

(2) Install head on locating dowels.
(3) Install 10mm allen hex head bolts with wash-

ers.

(4) Tighten bolts in the order shown in (Fig. 16).

When tightening the cylinder head bolts, tighten
gradually, working in two or three steps and finally
tighten to specified torque of 108 N

Im (80 ft. lbs.).

VALVE SERVICE

VALVE AND VALVE SPRINGS

(1) With suitable valve spring compressor, remove

spring retainer locks, retainer, valve spring, spring
seat and valve (Fig. 17).

(2) Remove valve stem seals with suitable tool

(Fig. 18). Do not reuse valve stem seals.

VALVES

(1) Check valve stem tip for pitting or depression

at point A (Fig. 19).

(2) Check for wear and ridge wear at Point B.
(3) Check for even contact (at face center) with

valve seat, Point C.

(4) Check margin. Replace valve if margin is out of

specification (Fig. 20).

(5) Check valve guide height (Fig. 20).

(6) Measure valve stem to guide clearance. Refer

to specification (Fig. 21).

(7) Measure Valve spring free length and square-

ness (Fig. 22). Refer to (Fig. 21) 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 de-
gree stone.

(1) Install valve spring seat.

Fig. 17 Remove Valves

Fig. 18 Remove Valve Stem Seals

Fig. 19 Valve Inspection

Fig. 20 Valve Guide Height

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(2) Using suitable tool install seal by tapping

lightly until seal is in place. (Fig. 24).

(3) Install valve spring with the enamelled ends

facing the rocker arms (Fig. 25).

CAUTION: During reassembly, compressing the
valve spring more than necessary to install valve
spring retainer locks can cause the retainer to be
forced against the stem seal and damaging it.

Fig. 21 Valve Specification

Fig. 22 Valve Spring

Fig. 23 Valve Seat Reconditioning

Fig. 24 Install Valve Stem Seals

Fig. 25 Installed Valve Spring Position

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Политика конфиденциальности