ENGINE
3.17
5.
Remove valve seals. CAUTION: Replace seals
whenever the cylinder head is disassembled.
Hardened, cracked or worn valve seals will cause
excessive oil consumption and carbon buildup.
VALVE INSPECTION
1.
Remove all carbon from valve with a soft wire
wheel.
2.
Check valve face for runout, pitting, and burnt
spots.
To check for bent valve stems, mount
valve in a drill or use “V” blocks and a dial
indicator.
3.
Check end of valve stem for flaring, pitting, wear
or damage (A).
A
B
4.
Inspect split keeper groove for wear or flaring of
the keeper seat area (B). NOTE: The valves
cannot be re-faced or end ground. They must be
replaced if worn, bent, or damaged.
5.
Measure
diameter
of
valve
stem
with
a
micrometer in three places and in two different
directions (six measurements total). Compare to
specifications.
Measure valve stem in
several places.
Valve Stem Diameter:
Intake: .2343-.2348
I
(5.950-5.965 mm)
Exhaust: .2341-.2346
I
(5.945-5.960 mm)
6.
Measure valve guide inside diameter at the top
middle and end of the guide using a small hole
gauge and a micrometer.
Measure in two
directions, front to back and side to side.
PartShark.com
877-999-5686
Summary of Contents for 2009 Trail Blazer 330
Page 94: ...ENGINE 3 48 NOTES P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 110: ...FUEL SYSTEM CARBURETION 4 16 NOTES P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 124: ...BODY STEERING SUSPENSION 5 14 NOTES P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 196: ...ELECTRICAL 10 4 REVERSE LIMIT SYSTEM P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 226: ...ELECTRICAL 10 34 NOTES P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 227: ...ELECTRICAL WIRING DIAGRAM 2009 TRAIL BOSS P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 228: ...ELECTRICAL WIRING DIAGRAM 2009 TRAIL BOSS P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 229: ...ELECTRICAL WIRING DIAGRAM 2009 TRAIL BLAZER P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 230: ...ELECTRICAL WIRING DIAGRAM 2009 TRAIL BLAZER P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...