<VV> Turbo charger problem

[Cliff & Darlene Pisenti]

Frank

I get none of the indications that I would expect when getting "boost," 
(spin up of the turbine).

1) A boost in horse power
2) A turbine whine
3) Positive pressure on the manifold gage (it tested ok)

I have taken it out on the freeway numerous times trying to get the "boost"

I have also removed the turbine and and partially disassembled it, all 
looks good with the right clearances (I have the GM Corvair shop manuals).

I can find no leaks in the exhaust, and tried with the muffler off to 
eliminate a clogged or a wrong muffler.  I've run out of ideas, other 
than the wrong exhaust housing.  Still trying to find out what 
identifies the early and late housings.

You have a manual?

Appreciate any ideas.

Cliff



FrankCB at aol.com wrote:

> Cliff,
>        You don't give us much to work on.  Are you depending on the 
> 40+ year old stock intake manifold pressure gauge to indicate boost?  
> Refer to my chapter on Turbocharging in the Corvair Basics Manual to 
> figure out if you really DO have boost and, if not, what to do about 
> it.  Most failure to achieve boost in a turbo that rotates by hand is 
> cauxed by exhaust leaks UPSTREAM of the turbo, so don't worry yet 
> about the ehaust system downstream.
>        Let us know what you find.
>        Frank "kaboosta kid" Burkhard
>
>
> In a message dated 5/4/2005 10:30:16 PM Eastern Standard Time, 
> clliffdar at sbcglobal.net writes:
>
>> I have a problem with my '63 turbo charged Corvair.  I have not been
>> able to get the turbine to spin up.
>>
>> The oil flow is correct, the turbine spins by hand with a slight drag
>> (I've been told that is normal).  I even tried it without the muffler.
>>
>> The one question I have is could the turbine wheel or the turbine
>> housing not be matched?  Do other years have different wheels/housings?
>>
>> Would appreciate any help or info.
>>
>> Cliff
>
>
>