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996 cylinder head bolt tightening sequence?
- Thread starter Harv
- Start date
infrasilver
Moderator
- Joined
- 4 Oct 2010
- Messages
- 9,934
It's a bit more tightening than you were expecting.
Head Bolts.
Tightening specification for cylinder-head screws:
. Initial tightening in accordance with tightening sequence 30 Nm
(22 ftlb.), undo all screws again
. Initial tightening in accordance with tightening sequence 20 Nm
(15 ftlb.)
. Final tightening in accordance with tightening sequence 2 x 70°
torque angle
Then the 4 allen head bolts.
Position and tighten 4 pan-head screws with M6 x 30 captive ~
washers (hexagon socket 10.9, ajf 5) -Items 1 - 4- on the
chain space. Use of a magnetic bit is recommended so that the
screw to be fitted in the slot -Item4- cannot fall into the crankcase
Head Bolts.
Tightening specification for cylinder-head screws:
. Initial tightening in accordance with tightening sequence 30 Nm
(22 ftlb.), undo all screws again
. Initial tightening in accordance with tightening sequence 20 Nm
(15 ftlb.)
. Final tightening in accordance with tightening sequence 2 x 70°
torque angle
Then the 4 allen head bolts.
Position and tighten 4 pan-head screws with M6 x 30 captive ~
washers (hexagon socket 10.9, ajf 5) -Items 1 - 4- on the
chain space. Use of a magnetic bit is recommended so that the
screw to be fitted in the slot -Item4- cannot fall into the crankcase
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