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Bendix air pump replacement
06-24-2005, 12:53
Post: #1
Bendix air pump replacement
My air brake pump on my 85 PT 40is getting weak and is leaking oil
badly. I took it to the local detroit diesel dealer to get a estimate
on replacing it. The first price I got was about three grand for a new
pump and about ten hours to replace at ninety dollars an hour. Hmmm?
Well that did'nt flush to well so I asked how about a rebuilt pump?
They quoted me Fifteen hundred for a Bendix rebuilt unit plus labor.To
make a long and expensive story short I purchased a Bendix rebuilt
pump from Fleetpride for two hundred ninety five dollars plus a six
hundred eighty five dollar core charge which was refunded when I
returned the old unit. It took me and my wife about four hours to
replace this unit . I just can't see how these people are making money
at these prices. Lee&Geraldine Condosta 85 PT40 Wilmington N.C
Quote this message in a reply
06-26-2005, 11:29
Post: #2
Bendix air pump replacement
Lee,

Did you notice the system pumping up quicker?

Anthing else noticeable?

I think my pump is gwtting worn out, only because it takes a bit for
it to pump up...

Thanks
Jay Darst
85Pt40
SpringfieldIL


--- In WanderlodgeForum@yahoogroups.com, "lcondosta"
wrote:
> My air brake pump on my 85 PT 40is getting weak and is leaking oil
> badly. I took it to the local detroit diesel dealer to get a
estimate
> on replacing it. The first price I got was about three grand for a
new
> pump and about ten hours to replace at ninety dollars an hour. Hmmm?
> Well that did'nt flush to well so I asked how about a rebuilt pump?
> They quoted me Fifteen hundred for a Bendix rebuilt unit plus
labor.To
> make a long and expensive story short I purchased a Bendix rebuilt
> pump from Fleetpride for two hundred ninety five dollars plus a six
> hundred eighty five dollar core charge which was refunded when I
> returned the old unit. It took me and my wife about four hours to
> replace this unit . I just can't see how these people are making
money
> at these prices. Lee&Geraldine Condosta 85 PT40 Wilmington N.C
Quote this message in a reply
06-26-2005, 12:55
Post: #3
Bendix air pump replacement
Jay
are you geeting more water or oil in the first tank than usual or if
equipped do you have to =srevice air dryer more than usual this may be
a sign that rings are passing oil into air lines which would
necessitate a rebuild if not check governor or replace it. It is a 20
dollar part and if it craps out will affect the inital fill rate by
restricting air flow
Stephen 77fc35

--- In WanderlodgeForum@yahoogroups.com, "Jay Darst"
wrote:
> Lee,
>
> Did you notice the system pumping up quicker?
>
> Anthing else noticeable?
>
> I think my pump is gwtting worn out, only because it takes a bit for
> it to pump up...
>
> Thanks
> Jay Darst
> 85Pt40
> SpringfieldIL
>
>
> --- In WanderlodgeForum@yahoogroups.com, "lcondosta"
> wrote:
> > My air brake pump on my 85 PT 40is getting weak and is leaking oil
> > badly. I took it to the local detroit diesel dealer to get a
> estimate
> > on replacing it. The first price I got was about three grand for a
> new
> > pump and about ten hours to replace at ninety dollars an hour. Hmmm?
> > Well that did'nt flush to well so I asked how about a rebuilt pump?
> > They quoted me Fifteen hundred for a Bendix rebuilt unit plus
> labor.To
> > make a long and expensive story short I purchased a Bendix rebuilt
> > pump from Fleetpride for two hundred ninety five dollars plus a six
> > hundred eighty five dollar core charge which was refunded when I
> > returned the old unit. It took me and my wife about four hours to
> > replace this unit . I just can't see how these people are making
> money
> > at these prices. Lee&Geraldine Condosta 85 PT40 Wilmington N.C
Quote this message in a reply
06-26-2005, 15:24
Post: #4
Bendix air pump replacement
Haven't noticed any water or oil in the tanks. Replaced the governor
about a year ago. Serviced the dryer as well. The dryer looked like
it had a fair amount of water and oil mix in it. Looked like a milky
vasoline or similiar...

The governor did prevent the air pressure from reaching normal 135-
140psi, it would get to mnaybe 75psi.

Takes about 15 minutes to air up.

Jay Darst
85PT40
SpringfieldIL where my Bird currently has about 3,000 hours on the
Detroit. Speedo says 48K miles so we'll have to assume the hours is
the correct indicator... probably has 135,000 miles on it now.


--- In WanderlodgeForum@yahoogroups.com, "Stephen Birtles"
wrote:
> Jay
> are you geeting more water or oil in the first tank than usual or
if
> equipped do you have to =srevice air dryer more than usual this
may be
> a sign that rings are passing oil into air lines which would
> necessitate a rebuild if not check governor or replace it. It is a
20
> dollar part and if it craps out will affect the inital fill rate by
> restricting air flow
> Stephen 77fc35
>
> --- In WanderlodgeForum@yahoogroups.com, "Jay Darst"

> wrote:
> > Lee,
> >
> > Did you notice the system pumping up quicker?
> >
> > Anthing else noticeable?
> >
> > I think my pump is gwtting worn out, only because it takes a bit
for
> > it to pump up...
> >
> > Thanks
> > Jay Darst
> > 85Pt40
> > SpringfieldIL
> >
> >
> > --- In WanderlodgeForum@yahoogroups.com, "lcondosta"

> > wrote:
> > > My air brake pump on my 85 PT 40is getting weak and is leaking
oil
> > > badly. I took it to the local detroit diesel dealer to get a
> > estimate
> > > on replacing it. The first price I got was about three grand
for a
> > new
> > > pump and about ten hours to replace at ninety dollars an hour.
Hmmm?
> > > Well that did'nt flush to well so I asked how about a rebuilt
pump?
> > > They quoted me Fifteen hundred for a Bendix rebuilt unit plus
> > labor.To
> > > make a long and expensive story short I purchased a Bendix
rebuilt
> > > pump from Fleetpride for two hundred ninety five dollars plus
a six
> > > hundred eighty five dollar core charge which was refunded when
I
> > > returned the old unit. It took me and my wife about four hours
to
> > > replace this unit . I just can't see how these people are
making
> > money
> > > at these prices. Lee&Geraldine Condosta 85 PT40 Wilmington N.C
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06-26-2005, 23:42
Post: #5
Bendix air pump replacement
Iwould check the dryer again and see if it is plugged if it is you may
want to check compressor
Stephen 77fc35

--- In WanderlodgeForum@yahoogroups.com, "Jay Darst"
wrote:
> Haven't noticed any water or oil in the tanks. Replaced the governor
> about a year ago. Serviced the dryer as well. The dryer looked like
> it had a fair amount of water and oil mix in it. Looked like a milky
> vasoline or similiar...
>
> The governor did prevent the air pressure from reaching normal 135-
> 140psi, it would get to mnaybe 75psi.
>
> Takes about 15 minutes to air up.
>
> Jay Darst
> 85PT40
> SpringfieldIL where my Bird currently has about 3,000 hours on the
> Detroit. Speedo says 48K miles so we'll have to assume the hours is
> the correct indicator... probably has 135,000 miles on it now.
>
>
> --- In WanderlodgeForum@yahoogroups.com, "Stephen Birtles"
> wrote:
> > Jay
> > are you geeting more water or oil in the first tank than usual or
> if
> > equipped do you have to =srevice air dryer more than usual this
> may be
> > a sign that rings are passing oil into air lines which would
> > necessitate a rebuild if not check governor or replace it. It is a
> 20
> > dollar part and if it craps out will affect the inital fill rate by
> > restricting air flow
> > Stephen 77fc35
> >
> > --- In WanderlodgeForum@yahoogroups.com, "Jay Darst"
>
> > wrote:
> > > Lee,
> > >
> > > Did you notice the system pumping up quicker?
> > >
> > > Anthing else noticeable?
> > >
> > > I think my pump is gwtting worn out, only because it takes a bit
> for
> > > it to pump up...
> > >
> > > Thanks
> > > Jay Darst
> > > 85Pt40
> > > SpringfieldIL
> > >
> > >
> > > --- In WanderlodgeForum@yahoogroups.com, "lcondosta"
>
> > > wrote:
> > > > My air brake pump on my 85 PT 40is getting weak and is leaking
> oil
> > > > badly. I took it to the local detroit diesel dealer to get a
> > > estimate
> > > > on replacing it. The first price I got was about three grand
> for a
> > > new
> > > > pump and about ten hours to replace at ninety dollars an hour.
> Hmmm?
> > > > Well that did'nt flush to well so I asked how about a rebuilt
> pump?
> > > > They quoted me Fifteen hundred for a Bendix rebuilt unit plus
> > > labor.To
> > > > make a long and expensive story short I purchased a Bendix
> rebuilt
> > > > pump from Fleetpride for two hundred ninety five dollars plus
> a six
> > > > hundred eighty five dollar core charge which was refunded when
> I
> > > > returned the old unit. It took me and my wife about four hours
> to
> > > > replace this unit . I just can't see how these people are
> making
> > > money
> > > > at these prices. Lee&Geraldine Condosta 85 PT40 Wilmington N.C
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06-27-2005, 07:59
Post: #6
Bendix air pump replacement
Jay,
There is some pretty decent information troubleshooting the Bendix
pump and system on the Bendix site.

Might check it out before you replace the pump.

http://www.bendix.com/downloads/BW1971.pdf

Mine is pokey getting there to the cut-off pressure but it does
eventually. I'm sure there is an optimum time from stat-up to cut
off that typifies a healthy air system

I was reading also that leaky check valves near the rear axle can
get gunked up and leak too. Course any leak in the system would
place extra stain on the pump.

Bob Janes. 77 FC31, Greenville, SC


--- In WanderlodgeForum@yahoogroups.com, "Jay Darst"
wrote:
> Lee,
>
> Did you notice the system pumping up quicker?
>
> Anthing else noticeable?
>
> I think my pump is gwtting worn out, only because it takes a bit
for
> it to pump up...
>
> Thanks
> Jay Darst
> 85Pt40
> SpringfieldIL
>
>
> --- In WanderlodgeForum@yahoogroups.com, "lcondosta"

> wrote:
> > My air brake pump on my 85 PT 40is getting weak and is leaking
oil
> > badly. I took it to the local detroit diesel dealer to get a
> estimate
> > on replacing it. The first price I got was about three grand for
a
> new
> > pump and about ten hours to replace at ninety dollars an hour.
Hmmm?
> > Well that did'nt flush to well so I asked how about a rebuilt
pump?
> > They quoted me Fifteen hundred for a Bendix rebuilt unit plus
> labor.To
> > make a long and expensive story short I purchased a Bendix
rebuilt
> > pump from Fleetpride for two hundred ninety five dollars plus a
six
> > hundred eighty five dollar core charge which was refunded when I
> > returned the old unit. It took me and my wife about four hours
to
> > replace this unit . I just can't see how these people are making
> money
> > at these prices. Lee&Geraldine Condosta 85 PT40 Wilmington N.C
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