Toyota Avensis ZZT251 2003 Service And Repair Manual page 557

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60. REMOVE CYLINDER HEAD GASKET
Overall Length
Lot No.
AVENSIS REPAIR MANUAL (RM1018E)
ENGINE MECHANICAL
59. REMOVE CYLINDER HEAD SUB–ASSY
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(a) Using several steps, loosen the 10 cylinder head bolts,
with 10 mm bi–hexagon wrench uniformly in the se-
quence shown in the illustration.
(b) Remove 10 cylinder head bolts and plate washers.
NOTICE:
Y
Be careful not to drop washers into the cylinder head.
Y
Head warpage or cranking could result from remov-
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ing bolts and installing incorrect order.
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61. INSPECT CYLINDER HEAD SET BOLT
(a) Using a vernier calipers, measure the length of the cylin-
der head set bolts from the seat to the end.
Standard bolt length:
161.3 to 162.3 mm (6.350 to 6.390 in.)
Maximum bolt length: 164.2 mm (6.465 in.)
If the length is greater than maximum, replace the cylinder head
set bolts.
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62. INSTALL CYLINDER HEAD GASKET
(a) Place a new cylinder head gasket on the cylinder block
surface with the Lot No. stamp upward.
NOTICE:
Y
Remove any oil from contact surface.
Y
Be careful of the installation direction.
Y
Place the cylinder head gently in order not to damage
the gasket with the bottom part of the head.
63. INSTALL CYLINDER HEAD SUB–ASSY
HINT:
The cylinder head set bolts are tightened in 2 successive steps.
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– CYLINDER HEAD GASKET (1AZ–FSE)
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