The cylinder head bolts should always be tightened gradually in several passes using the correct sequence. As per Haynes Manual for Toyota Tercel 1987-1994: First round in sequence tighten to 22 ft/lbs, then second round tighten to 36 ft/lbs, then go back in third round and tighten each bolt another 90 degrees (or a 1/4 of a turn) or what you know specified torque specifications.
For 3E-3EE engine
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Thursday, January 1st, 2009 AT 8:09 PM