Reduced power and Reduced turbo boost
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05-03-2005, 12:29
Post: #6
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Reduced power and Reduced turbo boost
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" > 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 > > > > > 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 > > > > 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 > > > > > > > > > > > > > > > > > > > > > > __________________________________________________ > > > Do You Yahoo!? > > > Tired of spam? Yahoo! Mail has the best spam protection > around > > > http://mail.yahoo.com > > > > > > > > > > > > ----------------------------------------------------------------- -- > ----------- > > 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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Messages In This Thread |
Reduced power and Reduced turbo boost - Jay Darst - 05-02-2005, 10:40
Reduced power and Reduced turbo boost - John Suter - 05-02-2005, 11:32
Reduced power and Reduced turbo boost - Jay Darst - 05-02-2005, 14:16
Reduced power and Reduced turbo boost - Mike Hohnstein - 05-02-2005, 14:50
Reduced power and Reduced turbo boost - Jay Darst - 05-02-2005, 14:56
Reduced power and Reduced turbo boost - Jay Darst - 05-03-2005 12:29
Reduced power and Reduced turbo boost - Jeff August - 05-03-2005, 14:55
Reduced power and Reduced turbo boost - George Lowry - 05-03-2005, 15:20
Reduced power and Reduced turbo boost - john duke - 05-04-2005, 12:43
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