8V92 Turbo Boost

[ronmarabito2002]

--- In WanderlodgeForum@yahoogroups.com, "Mike McMahan"
<mmcmahan@h...> wrote:
> I was reading the post on the turbo boost issue. I have thought for
a
> while that my coach was a little down on power. I drove it today
and
> the max boost I could get was 15lbs with pyrometer readings of 600.
> Any ideas that I shouod check before taking it somewhere. Thanks,
> Mike McMahan 1989 PT40 8V92

Mike: You are about 9 pounds shy of max boost. I would check for
leaks in the exhaust manifold and boost pipes to the turbo. Are you
blowing a lot of black smoke? If you are, that would indicate a loss
of boost as a result of a leak. You might also remove the intake
filter and check the vanes on the turbo and without the engine
running. Spin the turbo to make sure it turns freely. Beyond that,
it will take someone smarter than me.

R.E. (Ron) Marabito, dallas, TX 92WB40