| Fuel Filter removal issues [message #308158] |
Sun, 02 October 2016 19:44  |
thorndike
Messages: 406
Registered: January 2011
Location: Conifer, Colorado
Karma: 0
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Senior Member |
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Howdy all,
I am finally able to put my home renovations aside and work on my GMC. Last year during my cross country trip I lost power as I neared my new home in Colorado. It was suggested that I replace my fuel filter.
Well, I tried to remove the filter today and was unable to loosen the nut holding the filter in. Picture is here: http://imgur.com/yYqZwLw . I have soaked it in penetrating oil, tried a flare nut wrench with a vise grip applied to the end to squeeze the wrench around the nut and then with the vise grips around the nut. I have been unable to loosen the nut, although the larger nut on the carburetor side is lose.
Any thoughts on how to get this lose?
Robert
Robert Peesel
1976 Royale 26'
Side Dry Bath
Conifer, Colorado
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| Re: Fuel Filter removal issues [message #308163 is a reply to message #308158] |
Sun, 02 October 2016 19:57  |
C Boyd
Messages: 2629
Registered: April 2006
Karma: 18
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Senior Member |
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A small pipe wrench usually works with a back up 1" wrench holding the housing.
quote title=thorndike wrote on Sun, 02 October 2016 20:44]
Howdy all,
I am finally able to put my home renovations aside and work on my GMC. Last year during my cross country trip I lost power as I neared my new home in Colorado. It was suggested that I replace my fuel filter.
Well, I tried to remove the filter today and was unable to loosen the nut holding the filter in. Picture is here: http://imgur.com/yYqZwLw . I have soaked it in penetrating oil, tried a flare nut wrench with a vise grip applied to the end to squeeze the wrench around the nut and then with the vise grips around the nut. I have been unable to loosen the nut, although the larger nut on the carburetor side is lose.
Any thoughts on how to get this lose?
Robert[/quote]
C. Boyd
76 Crestmont
East Tennessee
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| Re: Fuel Filter removal issues [message #308164 is a reply to message #308158] |
Sun, 02 October 2016 19:57 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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Yes. Apply two pipe wrenches, one top the nut in question, one to the filter housing nut. It's al;ready scarred on both, so you're out nothing.
==johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: Fuel Filter removal issues [message #308165 is a reply to message #308158] |
Sun, 02 October 2016 19:59 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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I don't think I'd try the Red Wrench on a fuel line, but you might gain a bit by pouring boiling water over it for a few minutes before you lay the wrenches to it.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: [GMCnet] Fuel Filter removal issues [message #308166 is a reply to message #308158] |
Sun, 02 October 2016 20:15 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Robert,
You noted that the connection (filter housing) at the carb is loose; it is very important NOT to screw up that connection because if
you do the repair process can be costly and time consuming. Considering that if I were you I'd cut the metal line and remove the
filter housing from the carb.
Put the filter housing in a vise and use a six point box wrench to get the tube flare nut loose. You can heat the nut with a flame
now.
Buy one of these to put it back together as it will make your life easier whenever you want to check the filter:
http://www.appliedgmc.com/prod.itml/icOid/853
Regards,
Rob M.
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of Robert Peesel
Sent: Monday, October 03, 2016 11:44 AM
To: gmclist@list.gmcnet.org
Subject: [GMCnet] Fuel Filter removal issues
Howdy all,
I am finally able to put my home renovations aside and work on my GMC. Last year during my cross country trip I lost power as I
neared my new home in Colorado. It was suggested that I replace my fuel filter.
Well, I tried to remove the filter today and was unable to loosen the nut holding the filter in. Picture is here:
http://imgur.com/yYqZwLw. I have soaked it in penetrating oil, tried a flare nut wrench with a vise grip applied to the end to
squeeze the wrench around the nut and then with the vise grips around the nut. I have been unable to loosen the nut, although the
larger nut on the carburetor side is lose.
Any thoughts on how to get this lose?
Robert
--
Robert Peesel
1976 Royale 26'
Side Dry Bath
Morrison, Colorado
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: Fuel Filter removal issues [message #308175 is a reply to message #308158] |
Mon, 03 October 2016 01:34 |
mrgmc3
Messages: 210
Registered: September 2013
Location: W Washington
Karma: 2
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Senior Member |
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Yes, piling on here, but be especially careful of the carb body! The pump to carb line and the carb fitting that houses the filter can both be replaced. Screw up the threads in the float bowl (main body) and you are looking at carburetor replacement.
Chris Geils - Twin Cities / W Wa
1978 26' Kingsley w/ very few mods; PD9040, aux trans cooler, one repaint in stock colors, R134a, Al rad, Alcoas, 54k mi
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| Re: Fuel Filter removal issues [message #308178 is a reply to message #308175] |
Mon, 03 October 2016 07:14 |
lqqkatjon
Messages: 2324
Registered: October 2010
Location: St. Cloud, MN
Karma: 5
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Senior Member |
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will pile on a little more.
order up one of the flexable lines:
http://www.appliedgmc.com/prod.itml/icOid/853
cut that line off, remove the carb from the engine and take it to the bench, so you do not screw up threads into the carb.
the flexible line will make installation much easier forever into the future, and you should replace that line anyhow, so you do not have this problem in the figure.
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
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| Re: [GMCnet] Fuel Filter removal issues [message #308241 is a reply to message #308178] |
Tue, 04 October 2016 07:08 |
Bruce Hart
Messages: 1501
Registered: October 2011
Location: La Grange, Wyoming
Karma: 5
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Senior Member |
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Bob,
Did you advance your timing? You increased your altitude by what 7,000
feet.
On Mon, Oct 3, 2016 at 6:14 AM, Jon Roche wrote:
> will pile on a little more.
>
> order up one of the flexable lines:
> http://www.appliedgmc.com/prod.itml/icOid/853
>
> cut that line off, remove the carb from the engine and take it to the
> bench, so you do not screw up threads into the carb.
>
> the flexible line will make installation much easier forever into the
> future, and you should replace that line anyhow, so you do not have this
> problem
> in the figure.
>
>
>
> --
> Jon Roche
> 75 palm beach
> St. Cloud, MN
> http://lqqkatjon.blogspot.com/
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Bruce Hart
1976 Palm Beach
Milliken, Co
GMC=Got More Class
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Bruce Hart
1976 Palm Beach
1977 28' Kingsley
La Grange, Wyoming
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| Re: [GMCnet] Fuel Filter removal issues [message #308251 is a reply to message #308241] |
Tue, 04 October 2016 09:49 |
thorndike
Messages: 406
Registered: January 2011
Location: Conifer, Colorado
Karma: 0
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Senior Member |
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Bruce,
No, I have not adjusted the timing for the new altitude yet. The GMC was running great all the way across the country until I got just west of Denver. About the time I got to rt 70 and 470 the speed dropped to about 15 mph. I was able to get to the parking place in Morrison where it sits right now. It was suggested that it sounded like a fuel filter problem as it occurred so quickly.
My new home is in Conifer, so I am trying to get it from Morrison to Conifer so that I can spend more time working on it and getting it adjusted to the altitude.
I am open to any and all solution suggestions!
Bob
Robert Peesel
1976 Royale 26'
Side Dry Bath
Conifer, Colorado
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| Re: [GMCnet] Fuel Filter removal issues [message #308391 is a reply to message #308383] |
Fri, 07 October 2016 09:36 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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One time I moved a coach from California to Indiana. It had a large Wix filter just before the pump and the one in the carb. On the first day out the Wix one before the fuel pump clogged. I replaced it with a Purolator one. The second day the one in the carb clogged. The third day the one before the pump clogged again and I replaced it with one from CarQuest. The 4th day the one in the carb clogged again. I went through 6 filters (3 of each) on that trip and delivered the coach with 2 more spares.
My point is that the fuel filter before before the pump did not trap everything and the second one small one in the carb got the stuff that the first one missed. The stuff we were catching in that coach was rust from the tanks.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: [GMCnet] Fuel Filter removal issues [message #308418 is a reply to message #308391] |
Fri, 07 October 2016 21:20 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Ken,
I agree adding a filter up stream of the carb filter will not work 100% if you're moving a coach that has been sitting around with
the tanks rusting.
The fuel pump outlet filter needs to be finer than the carb filter.
Regards,
Rob M.
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
-----Original Message-----
From: Ken Burton
One time I moved a coach from California to Indiana. It had a large Wix filter just before the pump and the one in the carb. On
the first day out the Wix one before the fuel pump clogged. I replaced it with a Purolator one. The second day the one in the carb
clogged. The third day the one before the pump clogged again and I replaced it with one from CarQuest. The 4th day the one in the
carb clogged again. I went through 6 filters (3 of each) on that trip and delivered the coach with 2 more spares.
My point is that the fuel filter before before the pump did not trap everything and the second one small one in the carb got the
stuff that the first one missed. The stuff we were catching in that coach was rust from the tanks.
--
Ken
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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