On Oct 11, 3:46*am, James Sweet <jamesswe...@trashmail.net> wrote:
> Chris wrote:
> > Australian 850T5, delivered 1 Jan 1996 (does that make it a 95 or 96
> > model??). Turbo guage moves into the white area under wide open
> > throttle, but only slightly. Does not feel like there is any boost at
> > all. Feels like a normally aspirated 850 2.5. Runs relatively
> > smoothly. K&N air filter, nice and clean. I did find two vacuum hoses
> > with holes - one is on the intake manifold inboard of the power
> > steering pump. The other is at the bottom of the airbox intake hose,
> > down from the airbox below the rear engine mount. Both had big splits
> > in the rubber elbows. I will order replcements tomorrow, however, my
> > question is, would these two vacuum hose splits cause the turbo not to
> > operate. Car only has 65,000 miles. What is quite strange is that the
> > check engine light is not illuminated.
>
> > Any thoughts gratefully received.
>
> > Chris
>
> Sounds like the actuator rod has come off the wastegate on the bottom of
> the turbo. This will result in exactly what you describe, very little
> boost, and no fault codes will be triggered.- Hide quoted text -
>
> - Show quoted text -

Thnaks for the suggestion James.

I have replaced the perished vacuum hoses, and re-connected another
one that was not attached at the airbox. This has improved the engine
smoothness noticeably and the car seems to rev better to redline, but
still no turbo boost.

Could you give me any advice as to how to check the actuator rod? The
Haynes manual does not refer to it and has only 3 pics of the turbo,
none of which seem to show a rod.

Does it require the removal of what looks like a heat shield below the
brake master cylinder. The tubo looks to be beneath that. What am I
looking for, and is it common for the actuator rod to come of the
waste gate?

Thanks again for input

Chris