<VV> VirtualVairs Digest, Vol 244, Issue 21

[Jim Simpson]

Almost certainly an exhaust leak.  Nothing kills turbo boost more quickly
than a small exhaust leak.

On Thu, May 22, 2025, 9:00 AM <virtualvairs-request at corvair.org> wrote:

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>    1. No boost? (Grant)
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> ----------------------------------------------------------------------
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> Message: 1
> Date: Wed, 21 May 2025 14:34:44 +0000
> From: Grant <gyoungwolf at earthlink.net>
> To: virtualvairs at corvair.org, virtualvairs-request at corvair.org
> Subject: <VV> No boost?
> Message-ID: <46636f2d-547d-f628-5622-4723d6c6ca95 at earthlink.net>
> Content-Type: text/plain; charset=utf-8
>
> I am trying to advise a customer on what to do next. I rebuilt a turbo
> that was not boosting. It was not awful, but I replaced the carbon seal,
> bearing and bushing and mic-ed to stock. Only had to install a shim under
> the bearing, but still no boost. Customer has checked the exhaust for
> leaks, the linkage for wear, timing, and compression at around 120. Carb
> has recently been rebuilt and getting fuel and there is no smoking.
> Rotating unit goes about a turn or so when flicked with a finger and is not
> binding. Car runs fine otherwise, just not boosting. Hoping someone has an
> idea on what to look at next?
> Thanks,
> Grant
>
>
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> End of VirtualVairs Digest, Vol 244, Issue 21
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