Question about Cars & Trucks
Hi Kevin, To tighten the head on the 25 R begin at the centre and work outwards in a spiral pattern. using several passes to arrive at the specified torque setting. Regards John
Posted on Apr 16, 2014
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Posted on Jan 02, 2017
The 2kd engine has same torque settings whether it goes on a hilux, or srx or other. The minimum diameter specs are: 11.6 mm for head bolts, and 12.6 mm for main bearing bolts.
Posted on Jul 10, 2013
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Fig. 17: Cylinder head bolt torque sequence (click over pic for zoom)
Apply sealing compound only to the cylinder head gasket. Do not allow sealing compound to enter the cylinder bore.
Install the cylinder head and bolts. The threads of bolt No. 11 must be coated with Loctite® 592 sealant before installation. Tighten the bolts in 3 steps, using the correct sequence:
Tighten all bolts to 22 ft. lbs. (30 Nm).
Tighten all bolts to 45 ft. lbs. (61 Nm).
Retighten all bolts to 45 ft. lbs. (61 Nm).
Tighten bolts 1 through 10 in sequence to 110 ft. lbs. (150 Nm).
Tighten bolt 11 to 100 ft. lbs. (136 Nm)
Tighten bolts 12 through 14 to 110 ft. lbs. (150 Nm)
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