Joined: 02 Aug 2016 Posts: 57 Location: Abergavenny- South Wales
Posted: Wed Jul 12, 2017 6:34 am Post subject: Turbo waste gate - loose flap - some advice needed please
Ok so I'm in the process of replacing my catch tanks and some oil hoses - I noticed yesterday that the left hand turbo wastegate has a couple of mm movement and feels loose in the seating, the drivers side is quite tight in comparison? I'm assuming that the passenger side is not how it should be - correct? The actuator rods are in pretty good condition but the adjuster nut on the rear left is pretty much just a corroded blob of mess so I'm going to try and remove this - does any one know what size the thread is?
The drivers side has no adjuster nuts on it - only a clip that is pretty corroded too.
Once I have sorted this out I will need to set it up, the car is not mapped and is on K16 turbos - can anyone advise me on the correct procedure for this please?
Lots of questions I know sorry - thanks in advance. _________________ 996 Turbo- Black
Deakmeister1 Trainee
Joined: 02 Aug 2016 Posts: 57 Location: Abergavenny- South Wales
So it is important that the wg is closed properly on both sides and activates at the same pressure to have perfect balance.
If the wg is not closing on one side then it will leak boost and that turbo will be slower to build the target boost. Where the rod connects to the wastegate do you have any adjustment left to make it tight? If not then you could drill out the wastegate connection but it is not easy - normally you would remove the turbo and fit a new wg - is the seal on the wg okay ?
To set up you need to use a mitivac - the wastegate should crack open at 6.5psi on stock k16
Joined: 02 Aug 2016 Posts: 57 Location: Abergavenny- South Wales
Posted: Thu Jul 13, 2017 4:22 pm Post subject:
Thanks for the reply Ken, I will post some pictures now. _________________ 996 Turbo- Black
Deakmeister1 Trainee
Joined: 02 Aug 2016 Posts: 57 Location: Abergavenny- South Wales
Posted: Thu Jul 13, 2017 4:23 pm Post subject:
If that worked that's the left hand actuator adjustment. _________________ 996 Turbo- Black
Deakmeister1 Trainee
Joined: 02 Aug 2016 Posts: 57 Location: Abergavenny- South Wales
Posted: Thu Jul 13, 2017 4:26 pm Post subject:
This picture shows how loose the waste gate flap is on left hand side _________________ 996 Turbo- Black
Deakmeister1 Trainee
Joined: 02 Aug 2016 Posts: 57 Location: Abergavenny- South Wales
Posted: Thu Jul 13, 2017 4:28 pm Post subject:
This picture shows the waste gate which seems to be intact and the seat looks pretty good. _________________ 996 Turbo- Black
Deakmeister1 Trainee
Joined: 02 Aug 2016 Posts: 57 Location: Abergavenny- South Wales
Posted: Thu Jul 13, 2017 4:29 pm Post subject:
That's what's left of the right side adjuster - the waste gate on this side feels like its sat nicely and looks intact. _________________ 996 Turbo- Black
Well you need to fix that wg - it might be okay but you need to remove the actuator first - then check that the wg has full movement - if it does then fit new actuator - if it does not then you need to remove the turbo and refurb it
Joined: 02 Aug 2016 Posts: 57 Location: Abergavenny- South Wales
Posted: Fri Jul 14, 2017 10:07 pm Post subject:
Thanks Ken - I will get to it over the weekend and see how I get on.
Will report back soon.
Thank you. _________________ 996 Turbo- Black
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