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VALVE AND SPRING ASSEMBLY
Assemble
*
1. Valves.
Measure
• Valve run-out. Apply a cjab of prussian blue
on the entire valve face. Seat the valve but do
not rotate it. The prussian blue traces
transferred to the valve seat are an indication
of concentricity of the valve seat.
• Clean all traces of prussian blue. Apply a dab
of prussian blue on the valve seat and repeat
the check. The traces of prussian blue
transferred to the valve face indicates valve
face concentricity. Recondition valve seat or
replace valves, if required.
2. Valve stem oil seals.
• If oversize valves have been installed,
oversized valve stem seals must be used.
• Fully seat the seals on the valve guides.
3. Spring seat, spring and cap.
4. Using J 8062, compress valve spring.
5. Valve keys.
Important
• Make sure the keys seat properly in the upper
groove of the valve stem. Grease may be used
to hold the keys in place while releasing the
compressor tool.
VALVE LIFTERS
Hydraulic valve lifters very seldom require
attention. The lifters are extremely simple in design.
Readjustments are not necessary, and servicing of the
lifters requires only that care and cleanliness be
exercised in the handling of parts. Valve lifters must
be kept in order so they may be reinstalled in their
original position.
VALVE LIFTER DIAGNOSIS
1. Momentarily noisy when vehicle is started:
This condition is normal. Oil drains from the
lifters which are holding the valves open when
the engine is not running. It will take a few
seconds for the lifter to fill after the engine is
started.
2.
Intermittently noisy on idle only, disappearing
when engine speed is increased:
Intermittent clicking may be an indication of a
pitted check valve ball, or it may be caused by
dirt.
Correction: Replace lifter.
3.
Noisy at slow idle or with hot oil, quiet with
cold oil or as engine speed is increased:
High leak down rate. Replace suspect lifter.
4.
Noisy at high vehicle speeds and quiet at low
speeds:
• High oil level - Oil level above the “ FULL”
mark allows crankshaft counterweights to
churn the oil into foam. When foam is pumped
into the lifters, they will become noisy since a
solid column of oil is required for operation.
Correction: Drain oil until proper level is
obtained, refer to SECTION OB.
• Low oil level - Oil level below the operating
range allows the pump to pump air at high
speeds which results in noisy lifters.
Correction: Fill until proper oil level is
obtained.
• Oil pan bent on bottom or pump screen cocked
or loose.
Correction:
Repair or replace
parts
as
necessary.
5.
Noisy at idle becoming louder as engine
speed is increased to 1500 rpm:
This
noise
is
not
connected
with
lifter
malfunction. It becomes most noticeable in the
vehicle at 10 to 15 mph “L” (Low) range, or
30 to 35 mph “ D” (Drive) range and is best
described as a hashy sound. At slow idle, it may
be entirely gone or appear as a light ticking noise
in one or more valves. It is caused by one or
more of the following:
• Badly worn or scuffed valve tip and rocker
arm pad.
• Excessive valve stem to guide clearance.
• Excessive valve seat runout.
• Off square valve spring.
• Excessive valve face runout.
Summary of Contents for S Series 1994
Page 1: ......
Page 11: ...VIEW A p n n n j VIEW C F7554 Figure 10 Hydra Matic 4L60 E Transmission I D Location...
Page 24: ...NOTES...
Page 26: ......
Page 69: ...NOTES...
Page 71: ...3 2 STEERING...
Page 73: ......
Page 84: ......
Page 102: ...40...
Page 130: ...NOTES...
Page 146: ...NOTES...
Page 162: ...NOTES...
Page 166: ...Figure 5 Removing the Pinion Flange Figure 6 Pressing the Drive Pinion from the Cage...
Page 178: ...Figure 3 Spreading the Differential Case Figure 4 Removing the Differential...
Page 190: ...NOTES...
Page 202: ...NOTES...
Page 206: ...F5785...
Page 212: ...B Button Moved Out of Bearing Bore F5791...
Page 228: ...NOTES...
Page 232: ......
Page 234: ......
Page 236: ...Adjuster 63 Bolt 64 Lock Figure 10 Turning the Adjuster Plug K3 Models...
Page 237: ...Figure 13 Removing the Pinion Seal 39 Bearing Cup Figure 16 Removing the Inner Bearing Cap...
Page 261: ...F7475...
Page 267: ...B Button Moved Out of Bearing Bore F5791...
Page 294: ...NOTES...
Page 300: ...NOTES...
Page 318: ...NOTES...
Page 322: ...SR207LN2 EDS...
Page 324: ......
Page 326: ...OVERHEAD OILING AND RETURN MAIN OIL GALLERY N30005 6A2 J EDS...
Page 368: ...103 153 127 V1200...
Page 370: ......
Page 372: ......
Page 374: ...F9375 Figure 7 Engine Lubrication Diagram Engines Without Balance Shaft...
Page 376: ...Figure 9 Engine Lubrication Diagram Engines With Balance Shaft...
Page 399: ...V2974...
Page 410: ......
Page 412: ...195 196 201 174 252 163 165 164 244 3706r3924...
Page 452: ......
Page 454: ...163 164 V1202...
Page 456: ...20 21x 302 210 4 0 41 2 5 2 5 1 2 51 4 2 e3 54 3 9 252 252 S 255 255 25 6 256 209 V1196...
Page 458: ...100 1 8 4 185 183 177 v 75 201 3706r1204...
Page 460: ......
Page 510: ......
Page 512: ...V2131...
Page 514: ...110 106 106 103 90 93 89 88 87 86 v 7 7 7 7 j A _ 111 f t 2 a a s 53 49 L 47 46 3706r4751...
Page 516: ...259 260 150 237 S lM 180 167180 J 1 82 183 170 169 1 1 78 1 7 9 213212 2 0 7 205 r i 3706r4752...
Page 566: ...NOTES...
Page 574: ...NOTES...
Page 618: ...SPECIAL TOOLS...
Page 620: ...NOTES...
Page 672: ......
Page 682: ......
Page 686: ......
Page 694: ...RH0213 4L60 E...
Page 695: ...657 659 m i J 8092 H J 34196 4 3 34196 5 657 658 665 J 23907 J 7004 1 J 8092 RH0214 4L60 E...
Page 696: ...J 8092 J 34196 4 33 31 J 8092 RH0215 4L60 E...
Page 697: ...SPECIAL TOOLS...
Page 698: ...SPECIAL TOOLS...
Page 758: ...RH0194 4L80 E...
Page 764: ......
Page 770: ...SPECIAL TOOLS...
Page 771: ...SPECIAL TOOLS CONT...
Page 772: ......
Page 775: ......
Page 776: ......
Page 785: ......
Page 804: ...NOTES...
Page 806: ......
Page 808: ......
Page 822: ...3707r5079...
Page 840: ......
Page 848: ...NOTES...
Page 852: ......
Page 860: ...F5435...
Page 866: ......
Page 878: ...F9167...
Page 882: ...16 FrontOutputShaft 18 DrivtQNr 19 DrivenGm t 20 DriveChain 22 FrontOutputBearing V2836...
Page 890: ...F9168...
Page 908: ......
Page 919: ......