Question about 1993 Toyota Corolla
Torque setting for the cylinder head please
Hi Manuel, There are a number of different engines used in the Corolla, knowing which would be a great help. The engines used in the 1993 are of the 'A' series and 'E' series. The torque for the A series is 29 nm + 90 degrees. When removing the head begin loosening from the outer bolts. When the head is off have it inspected for warpage and skimmed if it is required. Tightening any cylinder head always begins at the middle or centre and works outwards. As my friend has said, the camshaft caps are tightened to 9 nm and the inlet manifold goes to 24 nm, and the exhaust is 27 nm. The tappet cover I think is 29 nm. The tappet cover is tightened on the A series with nuts onto the plug tubes. Regards John
Posted on Apr 13, 2014
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Posted on Jan 02, 2017
hey, torque must be done in 3 steps:
1st 22 ft lbs
2nd 43 ft lbs
final 47 ft lbs
use this sequence of tightening:
9 - 3 -1 -6 -8
7 - 5 - 2 -4 - 10
Posted on Jan 14, 2009
Tighten in several passes to 44 foot pounds.
I just wanted to add. Since this is an aluminum cylinder head, I hope you loosened the head in the loosening torque pattern. The pattern opposite of the torque tightening pattern. If not, you stand the chance of warping the head.
Again, since it's an aluminum head, it needs to be checked for flatness. Most aluminum heads need to be surfaced before re-installing.
Tightening torque pattern is as follows:
1.The Drivers side of the engine is the Left side.
From the Front going towards the back; the bolts are numbered 10, 6, 1, 3, and 7.
From the Front going towards the back on the Passenger side; the bolts are numbered 8, 4, 2, 5, and 9.
The Exhaust and Intake Camshaft Bearing Cap bolts go to 9 foot pounds. Tighten gradually. One bolt to the other with so many foot pounds, work back, and forth up to 9lbs.
Camshaft Timing Pulley bolts go to 43 foot pounds. (In a tightening sequence, and gradually)
Posted on Jul 25, 2009
If you have a vehicle application for the motor you can get a Haynes or Chilton manual from your local auto parts store. They usual run around $30.
Posted on Sep 04, 2009
Umiformilly tighten each of the ten head bolts in several passes, in the sequence shown. Tighten them to 44 ft. lbs. (60 Nm).
Posted on Jul 23, 2010
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