Removal and Replacement

Replacing attachment for exhaust manifold (stud)

Preliminary work for replacing studs
1. Remove exhaust manifold.
2. Remove exhaust manifold seal.


Replacing attachment for exhaust manifold (studs)

Exhaust Manifold:

Note: Only replace studs if they are damaged or their reliability can no longer be assured!

Tightening Nuts On Stud:

Countering Both Nuts In Direction Of Arrow:

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

Unscrewing Stud:

2. To unscrew stud, turn rear nut to left.

Note: Before inserting the new stud, the internal thread in the cylinder head must be checked for damage!

Screwing In New Studs Hand Tight:

Countering Both Nuts In Direction Of Arrow:

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

Screwing In New Stud:

4. Screw in new stud by turning front nut to right.

Checking Dimension With Caliper Gauge:

Dimension A:

5. The stud must be screwed in until dimension -A- is obtained. Check dimension with a caliper gauge.

Subsequent work

1. Re-install exhaust manifold with new seal.