G34357—6A—BG-EDS
Figure 38 - Valve Guide Reaming
• I Inspect
I Measure
• Valve guides for wear.
Since the valve guide serves to support and
center the valve seat grinder, the valve guide must be
serviced before reconditioning the valve seats. The
valve guide must be cleaned properly before any
measuring or servicing takes place.
@ Clean
• Valve guides, refer to Figure 36.
• Valve guide clearance.
- With a hole gage, measure the valve guide
I.D. and measure the valve stem with a
micrometer and compare the clearance.
- INTAKE CLEARANCE
• 0.028 - 0.066 mm (0.0011 - 0.0026 in.)
- EXHAUST CLEARANCE
• 0.035 - 0.081 mm (0.0014 - 0.0031 in.)
• If valve to guide clearances are too large, the
valve guides may be reamed oversize and an
oversized valve installed, refer to Figure 38. Do
not knurl the valve guides.
• Oversize Valve Availability
- 0.075 mm (0.00295 in.) O.S.
- 0.150 mm (0.0059 in.) O.S.
- 0.300 mm (0.00984 in.) O.S.
Reaming Valve Guides
Refer to “ Valve Service” and Figure 38 for
reamer selection and usage.
NOTICE:
Avoid breaking reamer flutes or
jamming the reamer into the valve guide due to
packing of chips or carbon. Clean the valve
guides before reaming.
VALVE SERVICE
Clean
• Valves of carbon, oil and varnish. Carbon can be
removed with a wire brush, varnish by soaking in
carburetor cleaning fluid.
CAUTION: Safety glasses must be
worn when using a power wire brush.
Avoid
inhaling
of
fumes
and
exposure of skin to carburetor
cleaning fluid, as bodily injury may
result.
• Do not scratch the valve stem with the wire brush.
Inspect
• Valve stem tip for wear. The valve stem tip may
be reconditioned by grinding. Follow the grinder
manufacturer’s instruction. Make sure the new
surface is perpendicular to the valve stem.
• Valve lock and oil seal grooves for chipped or
worn lands. Replace the valve if chipped or worn.
• Valve face for burning or cracking. If pieces are
broken off, inspect the corresponding piston.
Minor
scratches may be removed with an oil
stone.
• Valve stem for straightness and valve head for
bending or distortion. Use “ V ” blocks. Bent or
distorted valves must be replaced.
Содержание S Series 1994
Страница 1: ......
Страница 11: ...VIEW A p n n n j VIEW C F7554 Figure 10 Hydra Matic 4L60 E Transmission I D Location...
Страница 15: ...G VAN MODELS Rally Sportvan Cutaway Van Extended Van Vandura Chevy Van Magnavan Hi Cube Van F7569...
Страница 17: ...S T PICKUP REGULAR CAB 2 DOOR S T UTILITY VEHICLE S T PICKUP EXTENDED CAB 4 DOOR S T UTILITY VEHICLE 2900r4506...
Страница 24: ...NOTES...
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Страница 71: ...3 2 STEERING...
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Страница 102: ...40...
Страница 130: ...NOTES...
Страница 146: ...NOTES...
Страница 162: ...NOTES...
Страница 166: ...Figure 5 Removing the Pinion Flange Figure 6 Pressing the Drive Pinion from the Cage...
Страница 178: ...Figure 3 Spreading the Differential Case Figure 4 Removing the Differential...
Страница 190: ...NOTES...
Страница 202: ...NOTES...
Страница 206: ...F5785...
Страница 209: ...Figure 11 Remove the Pinion Flange F4696 F4759 Figure 14 Removing the Differential Side Bearing...
Страница 212: ...B Button Moved Out of Bearing Bore F5791...
Страница 228: ...NOTES...
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Страница 236: ...Adjuster 63 Bolt 64 Lock Figure 10 Turning the Adjuster Plug K3 Models...
Страница 237: ...Figure 13 Removing the Pinion Seal 39 Bearing Cup Figure 16 Removing the Inner Bearing Cap...
Страница 247: ...C Measure with Axle Shaft Forced Outboard 1 Shaft 5 Tube 9 Carrier Connector 23 Output Shaft 29 Carrier Case F5877...
Страница 261: ...F7475...
Страница 267: ...B Button Moved Out of Bearing Bore F5791...
Страница 294: ...NOTES...
Страница 300: ...NOTES...
Страница 318: ...NOTES...
Страница 322: ...SR207LN2 EDS...
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Страница 326: ...OVERHEAD OILING AND RETURN MAIN OIL GALLERY N30005 6A2 J EDS...
Страница 368: ...103 153 127 V1200...
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Страница 372: ......
Страница 374: ...F9375 Figure 7 Engine Lubrication Diagram Engines Without Balance Shaft...
Страница 375: ...Front View Rear View Showing Path Of Oil To Timing Chain Showing Main Gallery Oil Filter And Crankshaft Oil Feed V0575...
Страница 376: ...Figure 9 Engine Lubrication Diagram Engines With Balance Shaft...
Страница 399: ...V2974...
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Страница 412: ...195 196 201 174 252 163 165 164 244 3706r3924...
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Страница 454: ...163 164 V1202...
Страница 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...
Страница 458: ...100 1 8 4 185 183 177 v 75 201 3706r1204...
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Страница 512: ...V2131...
Страница 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...
Страница 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...
Страница 566: ...NOTES...
Страница 574: ...NOTES...
Страница 618: ...SPECIAL TOOLS...
Страница 620: ...NOTES...
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Страница 689: ...SPRINGS LOCATED IN THE PUMP PRESSURE CONV CL REGULATOR VALVE SPRINGS LOCATED IN THE VALVE BODY 3 4 SHIFT...
Страница 694: ...RH0213 4L60 E...
Страница 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...
Страница 696: ...J 8092 J 34196 4 33 31 J 8092 RH0215 4L60 E...
Страница 697: ...SPECIAL TOOLS...
Страница 698: ...SPECIAL TOOLS...
Страница 758: ...RH0194 4L80 E...
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Страница 770: ...SPECIAL TOOLS...
Страница 771: ...SPECIAL TOOLS CONT...
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Страница 804: ...NOTES...
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Страница 822: ...3707r5079...
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Страница 848: ...NOTES...
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Страница 859: ...17 Rear Case Half 18 Oil Pump Pick Up Tube 26 Connector Dowel Pin Location Pump Pick Up Screen F5434...
Страница 860: ...F5435...
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Страница 878: ...F9167...
Страница 882: ...16 FrontOutputShaft 18 DrivtQNr 19 DrivenGm t 20 DriveChain 22 FrontOutputBearing V2836...
Страница 890: ...F9168...
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Страница 914: ...J 2619 01 46 Rear Case 85 Front Output Shaft Rear Bearing F7659 Figure 21 Removing the Front Output Shaft Rear Bearing...
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