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Re: Cylinder head torque procedure
Posted by Anders (more from Anders) on Fri, 6 Dec 2002 00:36:14
In Reply to: Cylinder head torque procedure, BobS, Thu, 5 Dec 2002 23:30:28
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If the head bolts that you pull out of the car have a loose washer under the torxhead and is threaded almost all the way up to the washer, it's the new style and a lower torque is required.
I would actually toss those old bolts and buy new ones. They are about $3.00 each at the dealer.
If you have the old style bolts without a loose washer and threaded only halfway, you can reuse them without a problem.
New bolt torque: step one 40Nm (30 lbf ft) step two 60Nm (44 lbf ft) step three 90 degree
Old bolt torque: step one 60Nm (44 lbf ft) step two 80Nm (59 lbf ft) step three 90 degree.
I always split the exhaust at turbo flange, but loosen also all the nuts against cyl head so that the manifold is completly loose but still not removable.
Be very careful when lifting the head up and away. The plastic timing chain guide have a habit of breaking off, and then you are in for a lot more work.
Intake manifold, I leave in the car with everything hooked to it. But you kind of need some 1/4 extensioners and wobble sockets to reach the lower manifold bolts.
Good luck
posted by 66.229.128...
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