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why would a wastegate just stop working and not opening up???

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Old 10-16-2007, 12:30 PM
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Default why would a wastegate just stop working and not opening up???

Quick question for you guys? I have noticed that my wastegate is no opening up for some odd reason and I was messing with the boost controller and thats not it.
timing and vaccum hoses are prefect. So why would a wastegate just stop working?
SOHC TURBO
on 10 psi
tial 38mm wastegate spring at 7psi

Old 10-16-2007, 12:35 PM
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Default Re: why would a wastegate just stop working and not opening up??? (Markb16a)

Is it drawing vacuum on the top port of the waste gate? Sometimes the rubber can rip and cause problems or a set screw can possibly back out.
Old 10-16-2007, 01:26 PM
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Default Re: why would a wastegate just stop working and not opening up??? (Markb16a)

you send it to me and i tell you why

race gas on a pump valve?
taking boost reference off the manifold?

Old 10-16-2007, 02:22 PM
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Default Re: why would a wastegate just stop working and not opening up??? (TiAL)

if its a diaphragm wastegate, that can tear and render the wastegate inoperable.
Old 10-16-2007, 03:07 PM
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Default Re: why would a wastegate just stop working and not opening up??? (TiAL)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TiAL &raquo;</TD></TR><TR><TD CLASS="quote">you send it to me and i tell you why

race gas on a pump valve?
taking boost reference off the manifold?

</TD></TR></TABLE>

Sounds a bit more like THIS reason here. But details from The OP are needed..
Old 10-16-2007, 08:33 PM
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ok nevermind my wastegate seemed to just start working again for some odd reason.
Old 10-16-2007, 08:45 PM
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Default Re: why would a wastegate just stop working and not opening up??? (TheShodan)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TheShodan &raquo;</TD></TR><TR><TD CLASS="quote">

Sounds a bit more like THIS reason here. But details from The OP are needed..</TD></TR></TABLE>

If he's using race gas for 10psi of boost, he's got a turbo bigger than my spare tire

I'd recommend you take your WG off and disassemble (unless you aren't 'handy'). It could be corroded or in need of service.
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