Chevrolet Silverado / GMC Sierra. Manual - part 161
Fig. 538: Valve Lifter Pushrod Guides
Courtesy of GENERAL MOTORS CORP.
4. Inspect the valve lifter pushrod guides for excessive wear.
5. Inspect the valve lifter pushrod guides for cracks or damage.
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
Fig. 539: Inspecting Areas Of Valve Lifters
Courtesy of GENERAL MOTORS CORP.
6. Inspect the valve lifter for the following:
Broken or damaged clip (1)
Worn pushrod socket (2)
Scuffed or worn lifter body (3)
If the valve lifter shows scuffing or wear, inspect the engine block valve lifter bores
for wear.
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
Worn roller (4)
Loose or damaged pin (5)
Plugged oil hole (6)
CYLINDER HEAD DISASSEMBLE
Tools Required
J 8062 Valve Spring Compressor. See Special Tools.
Disassemble
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
Fig. 540: Compressing Valve Springs
Courtesy of GENERAL MOTORS CORP.
CAUTION: Compressed valve springs have high tension against the
valve spring compressor. Valve springs that are not
properly compressed by or released from the valve spring
compressor can be ejected from the valve spring
compressor with intense force. Use care when
compressing or releasing the valve spring with the valve
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado