Removal and Replacement

Replacing attachment for exhaust manifold (stud)

Note: The studs must only be replaced if they are damaged.

1. Remove exhaust manifold.
2. Remove exhaust manifold seal.

Nuts On Stud:

Countering Both Nuts In Direction Of Arrow:

3. Screw two M8 nuts onto the stud and counter with two open-ended wrenches.

Loosening The Stud:

4. To loosen the stud, turn rear nut to the left.

Nuts On Stud:

ATTENTION: Studs that are too long can cause irreparable damage to the cylinder head thread!
--> Only use studs that are the same length as the original studs.

Note:
^ Before inserting the new stud, the interior thread of the cylinder head must be checked for damage!
^ Measure the length of the original studs. Make sure the new studs are the same.

Countering Both Nuts In Direction Of Arrow:

5. Screw in new stud hand-tight, then screw two nuts onto the new stud as before and counter.

Fitting Stud:

6. Screw new stud in by turning the front nut to the right.

Caliper Gauge On Stud:

Dimension A:

7. The stud must be screwed in until dimension -A- is obtained. Check dimension with a caliper gauge.
8. Reinstall exhaust manifold with a new seal.