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MONDAY, 5p.m. Home at last [message #122270] Mon, 18 April 2011 19:07 Go to next message
Michael Bozardt is currently offline  Michael Bozardt   United States
Messages: 367
Registered: January 2007
Location: College Station, Texas
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Senior Member
Took all day to change two fuel filters, get a replacement alternator and, later, a replacement battery. Last evening, the GMC began sputtering and it got so bad, I decided we would likely not make it home. Figured ethanol had loosened more crud in the fuel tanks/lines. Stopped in Baytown, only 32 miles from home. However, the alternator-used in my trailer that I replaced the O'Reilly one with, was not putting anything out, so we were running only on the new battery-definitely would not have made it home. Found, fortunately, an RV park in Baytown so had roof air.....had no water all week, the pump did not work and I blame that on the RV shop which may have turned it on by accident and it ran dry and also ran down the deep cycle batteries. Then, upon hooking up in Patterson, a copper line separated from a copper "T" and the plumber said he could not fix it. Also, the Onan did not start-fuel pump not pumping. JimK said use a auto store replacement, but I will look for an original Bendix. Thank God the dash air now works better than it ever has so we were okay.

The little test gauge I have shows the new alternator putting out at 13 volts which it regards as "low". Somebody update me on what that is all about. The engine turned over with a grunt first rather than the usual grrr,grrr,grrr! Yes, I did get the alternator pulley changed.

Well, it is time for a shower and a late meal before heading out in the GMC for College Station Texas tomorrow and my 50th college class reunion. Wish I had been smart enough to study mechanical engineering.......Thx, Michael at GEMRECS

Fuel tanks are coming down after that!

[Updated on: Mon, 18 April 2011 19:08]

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Re: [GMCnet] MONDAY, 5p.m. Home at last [message #122274 is a reply to message #122270] Mon, 18 April 2011 19:29 Go to previous messageGo to next message
Tim Conway is currently offline  Tim Conway   United States
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Registered: September 2005
Location: Long Island, New York
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On Apr 18, 2011, at 8:07 PM, Michael Bozardt wrote:

> Well, it is time for a shower and a late meal before heading out in
> the GMC for College Station Texas tomorrow and my 50th college
> class reunion.


Good luck Michael!

Tim Conway
LI NY 78 PB
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Re: MONDAY, 5p.m. Home at last [message #122275 is a reply to message #122270] Mon, 18 April 2011 19:42 Go to previous messageGo to next message
JohnL455 is currently offline  JohnL455   United States
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Registered: October 2006
Location: Woodstock, IL
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Yes Michael, 13 is low. It should be up around 14.2V. Unless it's extremely hot out then it might taper down into the 13s but 13.0 is low. Good luck.

John Lebetski
Woodstock, IL
77 Eleganza II
Re: [GMCnet] MONDAY, 5p.m. Home at last [message #122278 is a reply to message #122270] Mon, 18 April 2011 19:47 Go to previous messageGo to next message
sgltrac is currently offline  sgltrac   United States
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did you try "jumping " the fuel pump on the control board?

On Mon, Apr 18, 2011 at 5:07 PM, Michael Bozardt <ilse@earth-comm.com>wrote:

>
>
> Took all day to change two fuel filters, get a replacement alternator and,
> later, a replacement battery. Last evening, the GMC began sputtering and it
> got so bad, I decided we would likely not make it home. Figured ethanol had
> loosened more crud in the fuel tanks/lines. Stopped in Baytown, only 32
> miles from home. However, the alternator-used in my trailer that I replaced
> the O'Reilly one with, was not putting anything out, so we were running only
> on the new battery-definitely would not have made it home. Found,
> fortunately, an RV park in Baytown so had roof air.....had no water all
> week, the pump did not work and I blame that on the RV shop which may have
> turned it on by accident and it ran dry and also ran down the deep cycle
> batteries. Then, upon hooking up in Patterson, a copper line separated from
> a copper "T" and the plumber said he could not fix it. Also, the Onan did
> not start-fuel pump not pumping. JimK said use a auto store replacement, but
> I will look for an origi
> nal Bendix. Thank God the dash air now works better than it ever has so we
> were okay.
>
> The little test gauge I have shows the new alternator putting out at 13
> volts which it regards as "low". Somebody update me on what that is all
> about. The engine turned over with a grunt first rather than the usual
> grrr,grrr,grrr! Yes, I did get the alternator pulley changed.
>
> Well, it is time for a shower and a late meal before heading out in the GMC
> for College Station Texas tomorrow and my 50th college class reunion. Wish I
> had been smart enough to study mechanical engineering.......Thx, Michael at
> GEMRECS
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
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Sully 77 Royale basket case. Future motorhome land speed record holder(bucket list) Seattle, Wa.
Re: [GMCnet] MONDAY, 5p.m. Home at last [message #122280 is a reply to message #122278] Mon, 18 April 2011 19:54 Go to previous messageGo to next message
Ken Henderson is currently offline  Ken Henderson   United States
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Registered: March 2004
Location: Americus, GA
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We hot wired the pump to +12 VDC at the starter before he left Patterson.

Ken H.



On Mon, Apr 18, 2011 at 8:47 PM, Todd Sullivan <sgltrac@gmail.com> wrote:

> did you try "jumping " the fuel pump on the control board?
>
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
Re: [GMCnet] MONDAY, 5p.m. Home at last [message #122285 is a reply to message #122270] Mon, 18 April 2011 20:29 Go to previous messageGo to next message
k2gkk is currently offline  k2gkk   United States
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Registered: November 2009
Karma: -8
Senior Member

Hi, Michael.

What sort of "test gauge" did you use to check the alternator output?
As somebody else answered, you should be looking at alternator
output of around 14.2 VDC. You need to look at that voltage with a
reasonably accurate DIGITAL voltmeter/multimeter.

My 50 year college reunion would have been last year, but I have
never heard of one being held. I am NOT on any of their begging
lists, thankfully!

~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
~~ ~ D C "Mac" Macdonald ~ ~~
~ ~ Amateur Radio - K2GKK ~ ~
~ ~ USAF and FAA, Retired ~ ~
~ ~ ~ Oklahoma City, OK ~ ~ ~
~~ ~ ~ "The Money Pit" ~ ~ ~~
~ ~ ~ ex-Palm Beach, 76 ~ ~ ~
~ www.gmcmhphotos.com/okclb ~
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~




> To: gmclist@temp.gmcnet.org
> From: ilse@earth-comm.com
> Date: Mon, 18 Apr 2011 19:07:43 -0500
> Subject: [GMCnet] MONDAY, 5p.m. Home at last
>
>
> SNIPPAGE
>
> The little test gauge I have shows the new alternator putting out at 13 volts which it regards as "low". Somebody update me on what that is all about. The engine turned over with a grunt first rather than the usual grrr,grrr,grrr! Yes, I did get the alternator pulley changed.
>
> Well, it is time for a shower and a late meal before heading out in the GMC for College Station Texas tomorrow and my 50th college class reunion. Wish I had been smart enough to study mechanical engineering.

Thx, Michael at GEMRECS

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Re: MONDAY, 5p.m. Home at last [message #122336 is a reply to message #122270] Tue, 19 April 2011 11:58 Go to previous message
mike miller   United States
Messages: 3576
Registered: February 2004
Location: Hillsboro, Oregon
Karma: 0
Senior Member
Michael Bozardt wrote on Mon, 18 April 2011 17:07

Took all day to change two fuel filters, ... <section snipped >> ... Also, the Onan did not start-fuel pump not pumping. ... << more snipped >> ... Fuel tanks are coming down after that!


There is a fuel filter in the bottom of the Onan fuel pump. Any reason it wouldn't be clogged up just line your "prime mover" fuel filters?

The Onan pump is rather simple. Besides the filter, it has a piston and two check valves. IIRC: Those are the only moving parts in it. I have had good luck with disassembly and cleaning with carb cleaner. I would try cleaning before replacement.

JWIWD.


Mike Miller -- Hillsboro, OR -- on the Black list
(#2)`78 23' Birchaven Rear Bath -- (#3)`77 23' Birchaven Side Bath
More Sidekicks than GMC's and a late model Malibu called 'Boo' http://m000035.blogspot.com
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