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.
 
    Engine Oil Pump Pickup R&R
    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 ...

    Engine Valve Seat Grind
    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 Owners Manual. Jump Starting
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    Chevrolet Cobalt Owners Manual

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