Notes and Cautions
2.2L Engine Disassembly
• There are two timing marks on both the cam pulleys and the crankshaft
pulley, a notch and an arrow. Align the notch on the outer rim of each
camshaft pulley with the notch on the inner cam cases. Align the notch on the
rear flange of the crankshaft sprocket with the notch on the oil pump housing.
• New belts will have the timing marks printed on the belt as well as
arrows indicating rotation direction.
• During the cam belt removal procedure, initially loosen, but do not remove,
the cam belt tensioner bolts until the belt and idler pulleys have been removed.
• The 1800cc cam wrench must be modified to fit the 2.2L camshaft sprocket.
Tool 499207100 is the preferred tool.
• The rubber coated metal intake manifold gaskets are one-time use only.
Discard and replace with a new set.
• The carbon composition head gaskets with integrated o-rings are inter
changeable from left to right on 1990 to 1994 N/A engines only.
• It is not necessary to remove the valve cover while removing the cylinder
head unless servicing of the valve components is required.
• Use caution while rotating the crankshaft to prevent the connecting rod
large ends from damaging the lower cylinder bores.
• All six (6) of the hidden shouldered crankcase bolts have sealing washers.
These bolts are not interchangeable with the other crankcase bolts. The
sealing washers are one-time use ONLY.
• Identify the location of the four o-rings (three small, one large), in the
mating surface of the right (1-3) side crankcase. The black o-rings are for oil
passages, the orange o-ring is for coolant passage.
• Remove the rocker assembly slowly to prevent binding against the
mounting dowels.
Partially filled HLAs will result in noisy operation of the valve train for approx-
imately one hour. To test, squeeze the HLA between your thumb and finger. If the
HLA is spongy, repeat the fill process. If the HLA can not be pumped to a firm
condition, replace it.
2.2L Engine Reassembly
• The rockers and supports should be returned to their original positions on
the shaft. The cut out portion of the rocker shaft must face the oil hole in the
rocker support. The spring washers must be properly located on the shaft.
Always replace any deformed spring washers.
• The HLA o-rings should always be replaced when the HLAs are reinstalled.
• Install the rocker assembly carefully to prevent binding against the
mounting dowels.
• Remove all fluids from the threaded portions of the case halves. This
prevents hydrostatic lock and potential cracking of the crankcase.
• Carefully follow the cylinder head torque sequence. Remember that the
re-tightening angle must not exceed 180 degrees. Proper use of the torque
procedure eliminates the need to retorque the cylinder head bolts after
running the engine. Refer to Service Manual Section 2-3 (W5E1).
• The left camshaft sprocket must not be installed on the right camshaft, as
damage to the inner right cam belt cover will result.
• Do not remove the plunger retaining pin from the cam belt tensioner until
the cam belt is completely installed.
• Do not rotate the crankshaft unnecessarily as the HLAs may bleed down.
End Wrench
The
16
Subaru 2.2 Liter Engine
Tensioner Bolt Caution
Tightening Camshaft Sprocket Bolts
Crankcase Bolt Holes
Cylinder Head Torque Sequence
Cam Belt Tensioner Retaining Pin
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