Cylinder Head - GT3

Removing and installing cylinder head - GT3


Removing cylinder head





Component, exploded view




Designations and notes




Component, exploded view




Designations and notes


- Preliminary work: Removing the camshaft housing

1. Remove the seal between the camshaft housing and the cylinder head. Do not use the seal again.







2. Unscrew cylinder head. Unscrew the twelve internal-serration screws in-turn steps in the order specified, Work according to the order specified in order to avoid distorting the cylinder head.

3. Remove cylinder head. Lift cylinder head straight upward.


WARNING:
Risk of damage!
- Under no circumstances may carbon deposits on the pistons be removed by mechanical means


Installing cylinder head





Component, exploded view




Designations and notes




Component, exploded view




Designations and notes





1. Replace cylinder head gasket. Replace the gasket between the cylinders and the cylinder head. The designation "TOP" must face upwards.

2. Place cylinder head in position. Uniformly push the cylinder head over the studs from above. When doing so, make sure that the sealing surface is not damaged. Hand-tighten the multiple-tooth nuts.












3. Tighten cylinder head. The cylinder head screws are tightened in four steps. Important: all four steps must be carried out in the order shown.
- Initial tightening to 30 Nm (22 ftlb.).
- Loosen all screws again in reverse order.
- Tighten screws to 20 Nm (15.0 ftlb.)
- Retighten screws to 20 Nm (15.0 ftlb.)
- Retighten screws with torque angle of 1 x 120°