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I am trying to diagnose a strange rattle under full boost
conditions. I want to be able to do so while I have my head poked
under the hood so I can see and hear up close. My turbo only spools
up when I am engaged in a driving gear (automatic). Any suggestions?


Thanks,
Dave


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At 11:52 PM 09/07/2001 +0000, you wrote:
>I am trying to diagnose a strange rattle under full boost
>conditions. I want to be able to do so while I have my head poked
>under the hood so I can see and hear up close. My turbo only spools
>up when I am engaged in a driving gear (automatic). Any suggestions?

Get your head under the hood and rev the motor fairly hard/quickly
with the throttle lever under the hood. It should spool partway regardless
of gear selection.

-=[Matt]=-


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I can't get any positive pressure this way though. Is there any way
to get full boost?
Could the rattle I hear be the sound of my wastegate? It only seems
to happen at full boost?

Thanks,
Dave

--- In BC-BFLegacyWorks@y..., jonesboy@s... wrote:
> At 11:52 PM 09/07/2001 +0000, you wrote:
> >I am trying to diagnose a strange rattle under full boost
> >conditions. I want to be able to do so while I have my head poked
> >under the hood so I can see and hear up close. My turbo only
spools
> >up when I am engaged in a driving gear (automatic). Any
suggestions?
>
> Get your head under the hood and rev the motor fairly
hard/quickly
> with the throttle lever under the hood. It should spool partway
regardless
> of gear selection.
>
> -=[Matt]=-


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You must have a substantial load on the engine to get any real amount
of boost. RPMs are not the same as load. The pulses coming out of
the exhaust under load are very strong, whereas at idle, it's just a
breeze.

Without running on a dyno, or replacing the wastegate, you'll never
know.

--- In BC-BFLegacyWorks@y..., northupd@a... wrote:
> I can't get any positive pressure this way though. Is there any
way
> to get full boost?
> Could the rattle I hear be the sound of my wastegate? It only
seems
> to happen at full boost?
>
> Thanks,
> Dave
>
> --- In BC-BFLegacyWorks@y..., jonesboy@s... wrote:
> > At 11:52 PM 09/07/2001 +0000, you wrote:
> > >I am trying to diagnose a strange rattle under full boost
> > >conditions. I want to be able to do so while I have my head
poked
> > >under the hood so I can see and hear up close. My turbo only
> spools
> > >up when I am engaged in a driving gear (automatic). Any
> suggestions?
> >
> > Get your head under the hood and rev the motor fairly
> hard/quickly
> > with the throttle lever under the hood. It should spool partway
> regardless
> > of gear selection.
> >
> > -=[Matt]=-


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I get a rattle at boost sometimes, But I know its the heat guard, I have
removed half of it and the other half rattles abit...
Mark
At 12:27 PM 07/12/2001 +0000, you wrote:
>I can't get any positive pressure this way though. Is there any way
>to get full boost?
>Could the rattle I hear be the sound of my wastegate? It only seems
>to happen at full boost?
>
>Thanks,
>Dave
>
>--- In BC-BFLegacyWorks@y..., jonesboy@s... wrote:
> > At 11:52 PM 09/07/2001 +0000, you wrote:
> > >I am trying to diagnose a strange rattle under full boost
> > >conditions. I want to be able to do so while I have my head poked
> > >under the hood so I can see and hear up close. My turbo only
>spools
> > >up when I am engaged in a driving gear (automatic). Any
>suggestions?
> >
> > Get your head under the hood and rev the motor fairly
>hard/quickly
> > with the throttle lever under the hood. It should spool partway
>regardless
> > of gear selection.
> >
> > -=[Matt]=-
>
>
>To unsubscribe from this group, please send an email to:
>BC-BFLegacyWorks-unsubscribe@egroups.com
>
>
>
>


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I had that same problem also... removed the guard and
it dissappeared.

Although when I am on anytype of boost I do get a loud
scream that sounds like a jet engine. I know this is
the turbo spinning and creating boost but I have never
heard a factory or even many aftermarket turbos this
loud. What do other peoples sound like? (I'm talking
like as loud as 3 to 4 vacumes running at once) Also I
only have a K&N filter no other motor upgrades... yet
>:)

Jay Erlenbach
'92 Legacy Turbo Sedan (US Spec)

--- Mark Ward <mark@rrunracing.com> wrote:
> I get a rattle at boost sometimes, But I know its
> the heat guard, I have
> removed half of it and the other half rattles
> abit...
> Mark
> At 12:27 PM 07/12/2001 +0000, you wrote:
> >I can't get any positive pressure this way though.
> Is there any way
> >to get full boost?
> >Could the rattle I hear be the sound of my
> wastegate? It only seems
> >to happen at full boost?
> >
> >Thanks,
> >Dave
> >
> >--- In BC-BFLegacyWorks@y..., jonesboy@s... wrote:
> > > At 11:52 PM 09/07/2001 +0000, you wrote:
> > > >I am trying to diagnose a strange rattle under
> full boost
> > > >conditions. I want to be able to do so while I
> have my head poked
> > > >under the hood so I can see and hear up close.
> My turbo only
> >spools
> > > >up when I am engaged in a driving gear
> (automatic). Any
> >suggestions?
> > >
> > > Get your head under the hood and rev
> the motor fairly
> >hard/quickly
> > > with the throttle lever under the hood. It
> should spool partway
> >regardless
> > > of gear selection.
> > >
> > > -=[Matt]=-
> >
> >
> >To unsubscribe from this group, please send an
> email to:
> >BC-BFLegacyWorks-unsubscribe@egroups.com
> >
> >
> >
> >Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
>
>


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With this JC Sports prototype intake, it's loud as hell. The
wastegate is VERY noticeable too, and sounds cool.

I've been removing heat shields too, blasted rust.

--- In BC-BFLegacyWorks@y..., Jay Erlenbach <legacy_productions@y...>
wrote:
> I had that same problem also... removed the guard and
> it dissappeared.
>
> Although when I am on anytype of boost I do get a loud
> scream that sounds like a jet engine. I know this is
> the turbo spinning and creating boost but I have never
> heard a factory or even many aftermarket turbos this
> loud. What do other peoples sound like? (I'm talking
> like as loud as 3 to 4 vacumes running at once) Also I
> only have a K&N filter no other motor upgrades... yet
> >:)
>
> Jay Erlenbach
> '92 Legacy Turbo Sedan (US Spec)
>
> --- Mark Ward <mark@r...> wrote:
> > I get a rattle at boost sometimes, But I know its
> > the heat guard, I have
> > removed half of it and the other half rattles
> > abit...
> > Mark
> > At 12:27 PM 07/12/2001 +0000, you wrote:
> > >I can't get any positive pressure this way though.
> > Is there any way
> > >to get full boost?
> > >Could the rattle I hear be the sound of my
> > wastegate? It only seems
> > >to happen at full boost?
> > >
> > >Thanks,
> > >Dave
> > >
> > >--- In BC-BFLegacyWorks@y..., jonesboy@s... wrote:
> > > > At 11:52 PM 09/07/2001 +0000, you wrote:
> > > > >I am trying to diagnose a strange rattle under
> > full boost
> > > > >conditions. I want to be able to do so while I
> > have my head poked
> > > > >under the hood so I can see and hear up close.
> > My turbo only
> > >spools
> > > > >up when I am engaged in a driving gear
> > (automatic). Any
> > >suggestions?
> > > >
> > > > Get your head under the hood and rev
> > the motor fairly
> > >hard/quickly
> > > > with the throttle lever under the hood. It
> > should spool partway
> > >regardless
> > > > of gear selection.
> > > >
> > > > -=[Matt]=-
> > >
> > >
> > >To unsubscribe from this group, please send an
> > email to:
> > >BC-BFLegacyWorks-unsubscribe@egroups.com
> > >
> > >
> > >
> > >Your use of Yahoo! Groups is subject to
> > http://docs.yahoo.com/info/terms/
> >
> >
>
>
> __________________________________________________
> Do You Yahoo!?
> Get personalized email addresses from Yahoo! Mail
> http://personal.mail.yahoo.com/


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