CHANGING THE WASTEGATE SPRING
1.
Remove boost pressure source hose from the wastegate as well as the breather hose if fitted.
2.
Remove the wastegate from the exhaust manifold. Use CAUTION! The wastegate may still be HOT!
We recommend to allow the vehicle to cool down before attempting this spring change.
3.
The use of a press or vice may be used to hold down the wastegate top cap while loosening the bolts
as the top cap is under the high spring tension. Ensure to use all safety gear necessary during this
procedure.
4.
Using a 3mm hex allen key, remove the six hex key cap screws that secure the billet aluminium top to
the wastegate.
5.
Remove the cap slowly, using care to secure the spring/springs upon removal.
6.
Remove the spring/springs from the wastegate. Determine which spring/springs you will be installing.
A spring chart is located at the end of these instructions. Install the spring/springs into the wastegate,
on top of the diaphragm
ensure they sit into the corresponding grooves in the wastegate. Use care to
ensure that you do not to tear or scratch the diaphragm.
7.
Visually align the bolt holes of the top cap and wastegate base. Now compress the wastegate top cap
until it is seated with the wastegate base. Make sure that the bolt holes are aligned before tightening.
It may be necessary to rotate the wastegate top cap to align the bolt holes. If needed, relieve tension
on top, rotate and recompress. Once bolt holes are aligned, install the six 3mm hex head cap screws.
Tighten the cap screws in a criss-cross pattern to 6Nm.
WARNING : Make sure that the lip of the diaphragm is not pinched between the top cap and the
wastegate base
For more information or technical enquires
Contact: Aeroflow Performance on
