Chevrolet Cobalt Service & Repair Manual: Engine Rebuild Specifications
Cylinder Head, Valve Guide, & Valve Seat
| All Measurements Given In Inches
Unless Otherwise Specified |
|
Engine (VIN) 1 |
Year |
Cylinder Head Warpage Limit |
Cylinder Head Height/Thickness |
Valve Guides |
Valve Seats |
|
Inside Diameter |
Stem To Guide Clearance |
Seat Angle, Deg. |
Seat Width |
Runout |
|
Intake |
Exhaust |
Intake |
Exhaust |
|
2.2L (H) |
2009-10 |
.0040 |
-- |
.2362-.2367 |
.0012-.0022 |
.0020-.0026 |
45.00 |
-- |
-- |
.0020 |
|
2.2L (F) |
2010 |
.0040 |
5.0700 |
.2362-.2367 |
.0012-.0022 |
.0020-.0026 |
45.00 |
.0472 |
.0630 |
-- |
|
|
|
| 1 --The eighth digit of Vehicle Identification Number
(VIN) denotes engine code. |
|
|
|
Valve Springs
| All Measurements Given In Inches
Unless Otherwise Specified |
|
Engine (VIN) 2 |
Year |
Free Length |
Installed Height |
Seated Pressure, Lbs. @ Inches |
Comp. Pressure, Lbs. @ Inches |
Out Of Square Limit |
|
2.2L (F) |
2010 |
1.5430 |
1.2790 |
55.1-60.9 @ 1.279 |
118.0-129.3 @ 1.279 |
-- |
|
2.2L (H) |
2009-10 |
1.5430 |
1.2790 |
55.1-60.9 @ 1.279 |
118.0-129.3 @ 1.279 |
-- |
|
|
|
| 2 --The eighth digit of Vehicle Identification Number
(VIN) denotes engine code. |
|
|
|
Valves
| All Measurements Given In Inches
Unless Otherwise Specified |
|
Engine (VIN) 3 |
Year |
Stem Diameter |
Valve Lash, Cold |
Face Angle |
Margin |
|
Intake |
Exhaust |
Intake |
Exhaust |
|
2.2L (F) |
2010 |
.2344-.2355 |
.2337-.2343 |
4 |
4 |
45.00 |
-- |
|
2.2L (H) |
2009-10 |
.2344-.2355 |
.2337-.2343 |
4 |
4 |
45.00 |
-- |
|
|
|
| 3 --The eighth digit of Vehicle Identification Number
(VIN) denotes engine code. |
| 4 --Hydraulic lifters, zero lash. |
|
|
|
Camshaft
| All Measurements Given In Inches
Unless Otherwise Specified |
|
Engine (VIN) 5 |
Year |
Camshaft Journal Diameter |
Maximum Journal Runout |
Camshaft Bearing Clearance |
Camshaft Endplay |
Lifter Bore Diameter |
Lifter Diameter |
Lifter To Bore Clearance |
|
2.2L (F) |
2010 |
1.0604-1.0614 |
.0010 |
.0016-.0034 |
.0016-.0057 |
.4730-.4739 |
.4719-.4724 |
.0005-.0020 |
|
2.2L (H) |
2009-10 |
1.0604-1.0614 |
.0010 |
.0016-.0034 |
.0016-.0057 |
.4730-.4739 |
.4719-.4724 |
.0005-.0020 |
|
|
|
| 5 --The eighth digit of Vehicle Identification Number
(VIN) denotes engine code. |
|
|
|
Crankshaft, Bearings & Rods
| All Measurements Given In Inches
Unless Otherwise Specified |
|
Engine (VIN) 6 |
Year |
Crankshaft |
Bearing Clearance |
Connecting Rod Side Clearance |
|
Main Bearing Journal Diameter |
Connecting Rod Journal Diameter |
Max. Out of Round |
Max. Taper |
Crankshaft Endplay |
Main Bearings |
Connecting Rod Bearings |
|
2.2L (F) |
2010 |
2.2045-2.2050 |
1.92910-1.9297 |
-- |
-- |
.0012-.0150 |
.0012-.0026 |
.0011-.0029 |
.0028-.0146 |
|
2.2L (H) |
2009-10 |
2.2045-2.2050 |
1.92910-1.9297 |
-- |
-- |
.0012-.0150 |
.0012-.0026 |
.0011-.0029 |
.0028-.0146 |
|
|
|
| 6 --The eighth digit of Vehicle Identification Number
(VIN) denotes engine code. |
|
|
|
Balance Shaft
| All Measurements Given In Inches,
Unless Otherwise Specified. |
|
Engine Liter (VIN) 7 |
Year |
Bearing |
Bushing |
End Play |
|
Bore Diameter |
Journal Diameter |
Clearance |
Journal Diameter |
Clearance |
|
2.2L (F) |
2010 |
1.6535-1.6542 |
.7874-.7882 |
.0012-.0025 |
1.4458-1.4466 |
.0013-.0040 |
.0020-.0118 |
|
|
|
| DOHC--Dual Overhead Cams. |
| 7 --Eighth digit of Vehicle Identification Number (Vehicle
Identification Number (VIN) denotes engine code. |
|
|
|
Pistons, Pins & Rings
| All Measurements Given In Inches
Unless Otherwise Specified |
|
Engine (VIN) 8 |
Year |
Piston Diameter |
Piston Clearance |
Piston Pin Diameter 10 |
Piston Pin To Piston Clearance |
Piston Ring End Gap |
Piston Ring Side Clearance |
|
Comp. |
Oil |
Comp. |
Oil |
|
Top |
2nd |
Top |
2nd |
|
2.2L (F) |
2010 |
3.384-3.385 9 |
.0004-.0016 |
.7872-.7874 |
.0001-.0005 |
.0080-.0160 |
.0140-.0220 |
.0100-.0300 |
.0461-.0469 |
.0579-.0587 |
.0035-.0042 |
|
2.2L (H) |
2009-10 |
3.384-3.385 9 |
.0004-.0016 |
.7872-.7874 |
.0001-.0005 |
.0080-.0160 |
.0140-.0220 |
.0100-.0300 |
.0461-.0469 |
.0579-.0587 |
.0035-.0042 |
|
|
|
| 8 --The eighth digit of Vehicle Identification Number
(VIN) denotes engine code. |
| 9 --Measured .5708 inch from bottom of piston. |
| 10 --Pistons & pins are matched set & should be replaced
as an assembly. |
|
|
|
Cylinder Block
| All Measurements Given In Inches
Unless Otherwise Specified |
|
Engine (VIN) 11 |
Year |
Cylinder Bore Diameter |
Cylinder Bore Taper Max. |
Cylinder Bore Out of Round Max. |
|
2.2L (F) |
2010 |
3.3855-3.3861 |
.00040 |
.00040 |
|
2.2L (H) |
2009-10 |
3.3855-3.3861 |
.00040 |
.00040 |
|
|
|
| 11 --The eighth digit of Vehicle Identification Number
(VIN) denotes engine code. |
|
|
|
On some models oil pump pickup
can not be removed from pump. Pickup must be replaced with oil pump as a
unit.
It is recommended to change oil
filter when replacing oil ...
It is usually recommended to send
head to machine shop for valve seat grinding.
A suitable valve grinding tool
kit is required to grind valve seats.
Valve guid ...
See also:
Chevrolet Cobalt Service & Repair Manual. Compression Pressure
When inspecting cylinder compression,
the engine should be at room temperature, the throttle should be open, the
spark plugs removed and the battery at full charge. The lowest reading cylinder
should not be less than 70% of the highest and no cylinder reading should
be less th ...
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