Reduced power and Reduced turbo boost

[Jeff August]

Boy I wish I could help but my gauge dosn't work, at least thats what
I suspect as it seems to run fine?
Did you and Dan enjoy our wonderful Wi. weather?
I looked around for your Birds Sunday but didn't see them, a freind
stoped over today and said he saw one on the road last weekend, I
told him it was one of you two. Good luck!
Jeff& Michelle August
1980FC35RB(with a hole cut in the shower wall to fix broken pipe)
Plymouth Wi.
--- In WanderlodgeForum@yahoogroups.com, "Jay Darst"
wrote:
> How would I test the hoses for delamination? (other than the
obvious-
> replace them)
>
> Has anyone ran into this and the fix was something other than the
> filters or hose delamination?
>
> Sure would appreciate suggestions...
>
> Thanks
> Jay Darst
> 85PT40 6V92
> SpringfieldIL
>
> RandyD?
>
>
>
>
>
> --- In WanderlodgeForum@yahoogroups.com, "Jay Darst"
> wrote:
> > I think there were some posts on that a year or 2 ago.
> >
> > Good thought, Thanks.
> >
> > Jay Darst
> > 85PT40 6V92
> > SpringfieldIL
> >
> >
> > --- In WanderlodgeForum@yahoogroups.com, "Mike Hohnstein"
> > <MHOHNSTEIN@w...> wrote:
> > > Some times them hoses delaminate, it's not good when that
> > happens. I had problems that I suspected were due to old
flexible
> > line. I replaced it all, stuff wears out.
> > > Mike Hohnstein
> > > Germantown, WI
> > > 83FC35
> > > ----- Original Message -----
> > > From: Jay Darst
> > > To: WanderlodgeForum@yahoogroups.com
> > > Sent: Monday, May 02, 2005 9:16 PM
> > > Subject: [WanderlodgeForum] Re: Reduced power and Reduced
> turbo
> > boost
> > >
> > >
> > > The "FUEL VACUUM" gage is now reading very high into the red,
> > which
> > > would indicate that the fuel pump is really having to work
> (suck)
> > to
> > > pull fuel through the Racor.
> > >
> > > I would use air pressure to relieve any blockage in the fuel
> > line
> > > that connects the fuel tank to the Racor, but then how would
> the
> > > line be refilled so as to avoid air in the line?
> > >
> > > With the "FUEL VACUUM" gage reading an unusually high vacuum,
> I
> > am
> > > fairly certain that this is a fuel delivery problem.
> > >
> > > So far, attempted repairs in chronological order:
> > > 1.)replace Racor fuel filter
> > > 2.)replace Spin-On fuel filter
> > > 3.)Again, remove and inspect Racor filter, empty contents of
> > Racor
> > > filter, remove bottom half of Racor filter for inspection and
> > > cleaning.
> > >
> > > It appears that the FUEL VACUUM gage is plumbed directly
> aftter
> > the
> > > RACOR filter, which would place it between the RACOR and the
> > SPIN-ON
> > > fuel filter. That being the case, it would seem that by
> removing
> > the
> > > contents of the RACOR, the FUEL VACUUM gage would read 0
since
> > there
> > > could would no longer be resistance, hence the RACOR filter
> > canistor
> > > is now empty.
> > >
> > > Replaced Racor filter, refilled with fuel and started engine.
> > Runs a
> > > bit un-even. Pretty sure its starving for fuel.
> > >
> > > HELP?!
> > >
> > > Thanks
> > > Jay Darst
> > > 85PT40 6V92
> > > SpringfieldIL
> > > --- In WanderlodgeForum@yahoogroups.com, John Suter
> > > wrote:
> > > > Jay,
> > > >
> > > > I do not want to be an alarmist, however check the
> > > > castings and flanges which deliver the boost air to
> > > > the engine (I think to the aftercooler) for cracks
> > > > that permit pressure leaks. Just before FMCA I saw
> > > > coach with symptoms that you describe, which delivered
> > > > leaking hot exhaust air into combustible areas of the
> > > > engine compartment. The cracked areas, once
> > > > discovered, were barely visable behind the large fan
> > > > but careful inspection permitted first a fingernail,
> > > > then a knife blade to be inserted into the gaps.
> > > >
> > > > John Suter
> > > >
> > > >
> > > >
> > > > --- Jay Darst wrote:
> > > > > Just returned from a 876 mile round trip to Elkhart
> > > > > Lake, WI.
> > > > >
> > > > > Noticed the fuel vacuum gage in the red. So changed
> > > > > Racor fuel
> > > > > before heading back home. Still the gage read in the
> > > > > RED. So, 1/3 of
> > > > > the way home, changed the spin on fuel filter. Still
> > > > > the gage read
> > > > > in the RED.
> > > > >
> > > > > The gage seems to have always worked before.
> > > > >
> > > > > Before and after changing the Racor filter and
> > > > > subsequently the spin
> > > > > on fuel filer, my boost gage would see 20psi.
> > > > >
> > > > > Later, when almost home(and dead dog tired) seemed
> > > > > that power was
> > > > > less than normal and boost would only see 15psi.
> > > > >
> > > > > The last tank of fuel was treated with Lucas fuel
> > > > > treatment, 1
> > > > > gallon Lucas to 300 gallons of fuel.
> > > > >
> > > > > Any suggestions as to why the loss of power and
> > > > > boost with fresh
> > > > > filters?
> > > > >
> > > > > Thanks
> > > > > Jay Darst
> > > > > 85PT40 6V92 Detroit
> > > > > Springfield, IL
> > > > >
> > > > >
> > > > >
> > > > >
> > > >
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