Porsche 996 TT Repair Manual page 643

2. Tighten exhaust manifold on the cylinder head. Position exhaust manifold with new seals (cylinder head
and on the catalytic converter) on the cylinder head and insert in the exhaust catalytic converter at the
same time. Position the nine fastening screws on the cylinder head by hand and tighten in two stages. First
stage 25 Nm (18 ftlb.). Second stage 33 Nm (24 ftlb.).
Tightening occurs in two stages (first 25 Nm (18 ftlb.), then 33 Nm (24 ftlb.)) according to the sequence
shown.
3. Replace the four fastening nuts to the exhaust catalytic converter and tighten to 30 Nm (22
ftlb.).
4. Tighten the two oil pipes to 30 Nm (22 ftlb.)
each.
Installing turbocharger
einordnung
580