Chevrolet Cobalt Service & Repair Manual: Exhaust Manifold, Replace
Removal
| 1. |
Remove exhaust manifold heat shield. |
| 3. |
Raise and support vehicle. |
| 4. |
Remove manifold to exhaust flex decoupler
mounting bolts. |
| 5. |
Pull down and back on exhaust pipe
in order to disconnect pipe from exhaust manifold. |
| 7. |
Remove exhaust manifold to cylinder
head mounting nuts. |
| 8. |
Remove exhaust manifold, clean sealing
surfaces. |
| 9. |
Reverse procedure to install. Torque
exhaust manifold to cylinder head mounting nuts to 106 inch lbs.,
in sequence, Fig. 1. |
|
Fig. 1 Exhaust manifold tightening sequence
1.
Remove the secondary air injection
bolts (2) and nuts (1), Fig. 1.
2.
Remove the secondary air injection
studs (3 and 4), Fig. 2 ...
Removal
1.
Raise and support vehicle.
2.
Remove front fender liner.
3.
Turn drive belt tensioner clockwise.
...
See also:
Chevrolet Cobalt Service & Repair Manual. Cylinder Head Overhaul
It is usually recommended to send
head to machine shop for complete overhaul.
Cylinder head must be cool before
removing it from engine. Cylinder head warpage can result if a warm or hot
cylinder head is removed.
Place clean shop towels over exposed
e ...
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Chevrolet Cobalt Service Manual
Exhaust Manifold Gasket R&R
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