Re: [MV] turbo whistle sound

From: Joe Shannon (fordpart@bellsouth.net)
Date: Tue Jan 14 2003 - 11:29:37 PST


David can fill in the part numbers but the earlier turbos were of a
different design which had a narrow exhaust side the impeller on this
side was larger in diameter. In this model the shaft and the compressor
turned slower and whistled at a pitch that can be heard. Later they went
to the newer quiet style which had a wider exhaust housing and smaller
in diameter this allowed the shaft to spin faster (the way a small boat
tire spins faster than a car tire traveling at the same speed) and build
more boost pressure. On a few LDS engines they had an adapter and used
this same turbo.

Jason Frisch wrote:

>If you have a turbo on your M35, and it dosen't whistle, does it mean the
>turbo dosen't work?
>I have several M35s, all whistle except 1. Does engine manufacturer
>determine the whistle?
>Can anyone enlighten me on this?
>
>Jason
>
>
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