8V92 Turbo Boost

[Mike McMahan]

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 Hohnstein]

It's not getting enough fuel. Fuel filters? Did it ever show more boost and egt?
If not bigger injector nozzles will do wonders for power and fuel consumption,
not in a good way for the consumption.
Mike Hohnstein
Germantown, WI
83FC35
----- Original Message -----
From: Mike McMahan
To: WanderlodgeForum@yahoogroups.com
Sent: Friday, April 29, 2005 3:25 PM
Subject: [WanderlodgeForum] 8V92 Turbo Boost


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





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[Non-text portions of this message have been removed]

[Mike McMahan]

Mike It seems like it used to have more boost. The fuel filters
are fairly new with the racor gauge not indicating a problem.
Thanks for the reply and help. Mike McMahan 1989 PT40

--- In WanderlodgeForum@yahoogroups.com, "Mike Hohnstein"
<MHOHNSTEIN@w...> wrote:
> It's not getting enough fuel. Fuel filters? Did it ever show more
boost and egt? If not bigger injector nozzles will do wonders for
power and fuel consumption, not in a good way for the consumption.
> Mike Hohnstein
> Germantown, WI
> 83FC35
> ----- Original Message -----
> From: Mike McMahan
> To: WanderlodgeForum@yahoogroups.com
> Sent: Friday, April 29, 2005 3:25 PM
> Subject: [WanderlodgeForum] 8V92 Turbo Boost
>
>
> 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
>
>
>
>
>
> -------------------------------------------------------------------
-----------
> Yahoo! Groups Links
>
> a.. To visit your group on the web, go to:
> http://groups.yahoo.com/group/WanderlodgeForum/
>
> b.. To unsubscribe from this group, send an email to:
> WanderlodgeForum-unsubscribe@yahoogroups.com
>
> c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms
of Service.
>
>
>
> [Non-text portions of this message have been removed]

[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

[johnorud]

I have the same problem, maximum boost is 15 pounds. I have a good
diesel mechanic coming over to look at the engine next week when I
get back for New Mexico. His opinion is the injectors may not have
been set correctly, the exhaust expansion joint is leaking, or the
turbo has gone bad. I have checked the fuel pressure and it is ok. I
will let you know what I find out when we finally figure it out.

John Rud
88 pt40
New River, AZ

--- In WanderlodgeForum@yahoogroups.com, "Mike McMahan"
<mmcmahan@h...> wrote:
> Mike It seems like it used to have more boost. The fuel filters
> are fairly new with the racor gauge not indicating a problem.
> Thanks for the reply and help. Mike McMahan 1989 PT40
>
> --- In WanderlodgeForum@yahoogroups.com, "Mike Hohnstein"
> <MHOHNSTEIN@w...> wrote:
> > It's not getting enough fuel. Fuel filters? Did it ever show
more
> boost and egt? If not bigger injector nozzles will do wonders for
> power and fuel consumption, not in a good way for the consumption.
> > Mike Hohnstein
> > Germantown, WI
> > 83FC35
> > ----- Original Message -----
> > From: Mike McMahan
> > To: WanderlodgeForum@yahoogroups.com
> > Sent: Friday, April 29, 2005 3:25 PM
> > Subject: [WanderlodgeForum] 8V92 Turbo Boost
> >
> >
> > 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
> >
> >
> >
> >
> >
> > -----------------------------------------------------------------
--
> -----------
> > Yahoo! Groups Links
> >
> > a.. To visit your group on the web, go to:
> > http://groups.yahoo.com/group/WanderlodgeForum/
> >
> > b.. To unsubscribe from this group, send an email to:
> > WanderlodgeForum-unsubscribe@yahoogroups.com
> >
> > c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms
> of Service.
> >
> >
> >
> > [Non-text portions of this message have been removed]

[Jeff Miller]

Fuel filters, air filter, exhaust leaks and restriction, intake stack
restriction. Further, your DDEC II system might be limiting power
based on sensor input, might be worth having a DD dealer check it if
you can't find anything obvious.

Look also to make sure the throttle is traveling to the stop when
floored.

- Jeff Miller
http://www.wanderlodge.net
http://www.millercoachworks.com


--- 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

[randydupree]

check exhaust manifolds and pipes for cracks,and check the rubber hoses between
the turbo and the engine for cracks or loose clamps.randy
----- Original Message -----
From: Mike McMahan
To: WanderlodgeForum@yahoogroups.com
Sent: Friday, April 29, 2005 5:02 PM
Subject: [WanderlodgeForum] Re: 8V92 Turbo Boost


Mike It seems like it used to have more boost. The fuel filters
are fairly new with the racor gauge not indicating a problem.
Thanks for the reply and help. Mike McMahan 1989 PT40

--- In WanderlodgeForum@yahoogroups.com, "Mike Hohnstein"
<MHOHNSTEIN@w...> wrote:
> It's not getting enough fuel. Fuel filters? Did it ever show more
boost and egt? If not bigger injector nozzles will do wonders for
power and fuel consumption, not in a good way for the consumption.
> Mike Hohnstein
> Germantown, WI
> 83FC35
> ----- Original Message -----
> From: Mike McMahan
> To: WanderlodgeForum@yahoogroups.com
> Sent: Friday, April 29, 2005 3:25 PM
> Subject: [WanderlodgeForum] 8V92 Turbo Boost
>
>
> 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
>
>
>
>
>
> -------------------------------------------------------------------
-----------
> Yahoo! Groups Links
>
> a.. To visit your group on the web, go to:
> http://groups.yahoo.com/group/WanderlodgeForum/
>
> b.. To unsubscribe from this group, send an email to:
> WanderlodgeForum-unsubscribe@yahoogroups.com
>
> c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms
of Service.
>
>
>
> [Non-text portions of this message have been removed]





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[Non-text portions of this message have been removed]

[randydupree]

also check your air filter,and the air scoop on top of the coach,i've seen the
scoop collapse from to many leaves etc being in the screen.randy
----- Original Message -----
From: ronmarabito2002
To: WanderlodgeForum@yahoogroups.com
Sent: Friday, April 29, 2005 7:03 PM
Subject: [WanderlodgeForum] Re: 8V92 Turbo Boost


--- 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





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Yahoo! Groups Links

a.. To visit your group on the web, go to:
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c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.



[Non-text portions of this message have been removed]