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Home > Help Needed / General Tech Chat > turbo wastegate actuator problems

blister

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871 Posts
Member #: 2590
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Croydon

I recently bought a gt1544 received it through the post today and notice the wastegate flap is permanently open but isn't seized and can be pushed easily back using the actuator arm or if I suck on the pipe on the actuator it pulls it back into position

My understanding is that these flaps stay closed until a certain amount of boost is made then they open

My td04 turbo is stuck nice and tight

So does that mean my gt15 actuator is to blame


stevieturbo

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Member #: 655
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Northern Ireland

No doubt it's a vacuum operated setup from a diesel, so needs vacuum applied to the can in order to shut the valve to make boost.

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will


blister

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871 Posts
Member #: 2590
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Croydon

Oops ok thank you


blister

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871 Posts
Member #: 2590
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Croydon

So does that mean I can use it on a 998 I just need to connect the actuator pipe to my inlet manifold


wil_h

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Member #: 123
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Betwix Harrogate and York

It means you need an actuator that works on pressure.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph



On 2nd Jan, 2013 fastcarl said:

the design shows a distinct lack of imagination,
talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol

On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry.


blister

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871 Posts
Member #: 2590
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Croydon

Ah ok that's not a problem then thank you

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