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 ...
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