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Damaged Actuator ?

conan7772

By conan7772,
in Four Door Family & Wagoneers

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conan7772 Mentor

conan7772

Posted
Posted

The other day was on boost then suddenly lost all, black smoke galore.

I've checked all the hoses for leaks, they seem ok.

Turbo still spools but not as quickly.

I have a Turbosmart boost-t with the gate still in, wound all the way down.

It sounded like the gate stuck, then suddenly let go, surging the shit out of the actuator.

Is it possible this surge damaged the diaphram ?

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https://www.sau.com.au/forums/topic/461449-damaged-actuator/
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conan7772 Mentor

conan7772

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yeah I'll start by changing all the vac line with silicone tube and hose clamps.

found a small split, cut it back but still losing boost somewhere.

I do have a compressor, how do you block off the intake to pressure test ?

Where's the best place to connect compressor.

'cheers

datmoo Proficient

datmoo

Posted
Posted

Had the same problem the other day.

Put my boost leak tester here:

post-135423-0-56762200-1449211579_thumb.jpg

Had a boost leak on my SR 1600 and was a real high pitched squeal but with the stag not so much.

I ended up using my hand to feel for air and eventually found it when I took the front bumper off.

Ended up being the intercooler intake pipe hose clamp.

conan7772 Mentor

conan7772

Posted
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Posted

Yeah all the way anti-clock, means it opens at 3psi.

I just read somewhere you're supposed to wind 3 clicks off the bottom.

I had it wound all down, maybe causing the ball to catch in the boost-t.

Seems better now, But I'm pretty sure the vac lines are leaking.

You can pull them off easily without pressing the clamps.

Got some silicone hose and worm drive clamps coming.

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