ENGINE
3.16
CYLINDER HEAD WARPAGE
1.
Lay a straight edge across the surface of the
cylinder. head at several different points and
measure warpage by inserting a feeler gauge
between the straight edge and the cylinder head
surface. If warpage exceeds the service limit,
replace the cylinder head.
Cylinder Head Warpage Limit:
.002” (.05mm)
CYLINDER HEAD
DISASSEMBLY
WARNING: Wear eye protection or a face shield
during cylinder head disassembly and reassembly.
NOTE: Keep all parts in order with respect to their
location in the cylinder head.
1.
Using a valve spring compressor, compress the
valve spring and remove the split keeper. NOTE:
To prevent loss of tension, do not compress the
valve spring more than necessary.
2.
Remove spring retainer and spring.
A
NOTE: The valve springs should be positioned with
the tightly wound coils against the cylinder head on
progressively wound springs (A).
3.
Push valve out, keeping it in order for reassembly
in the same guide.
4.
Measure free length of spring with a Vernier
caliper, Ill.1.
Check spring for squareness as
shown in Ill.2.
Compare to specifications.
Replace spring if either measurement is out of
specification.
Valve Spring
Free Length
Ill.1
Coil Fatigue/
Squareness
Ill.2
Valve Spring Length:
Std: 1.673
I
(42.5 mm)
Squareness:
.075
I
(1.9 mm)
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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 ...