Home » Public Forums » GMCnet » [GMCnet] Lead sinkers in the gas tank.
| [GMCnet] Lead sinkers in the gas tank. [message #267554] |
Sun, 14 December 2014 23:54  |
BobDunahugh
Messages: 2465
Registered: October 2010
Location: Cedar Rapids, IA
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Just remembered today that I forgot to put sinkers in my tanks the last time I dropped my tanks. I put them in to roll around to keep rust from forming on the bottom of the tanks. Thought of putting them in the filler neck. But I think that they would all go into the back main tank. Maybe put two hand fulls in at once. Might increase the odds of some going in the front tank. Bob Dunahugh Member GMCMI
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| Re: [GMCnet] Lead sinkers in the gas tank. [message #267580 is a reply to message #267554] |
Mon, 15 December 2014 10:30  |
George Beckman
Messages: 1085
Registered: October 2008
Location: Colfax, CA
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BobDunahugh wrote on Sun, 14 December 2014 21:54Just remembered today that I forgot to put sinkers in my tanks the last time I dropped my tanks. I put them in to roll around to keep rust from forming on the bottom of the tanks. Thought of putting them in the filler neck. But I think that they would all go into the back main tank. Maybe put two hand fulls in at once. Might increase the odds of some going in the front tank. Bob Dunahugh Member GMCMI
We California folks have had ethanol in our fuel for probably 15 years. When we dropped our tanks they were so shiny inside, you could eat off the bottoms.
BTW, in one tank a baffle broke off and so, other than causing a leak where the spot weld broke, perhaps it is helping keeping that tank polished. The other has to be ethanol. *smile*
'74 Eleganza, SE, Howell + EBL
Best Wishes,
George
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| Re: [GMCnet] Lead sinkers in the gas tank. [message #267596 is a reply to message #267576] |
Mon, 15 December 2014 13:25 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Jim,
Add one of these: http://www.gmcmhphotos.com/photos/aa-miscellaneous-photos/p54750-fuel-pump-inlet-filter.html
Along with Barricade fuel lines; your "patented" Facet pump between the aux fuel tank and the selector valve (powered by the AUX
fuel switch) and Bob's your Uncle! ;-)
Regards,
Rob M.
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Jim Bounds
Sent: Tuesday, December 16, 2014 2:07 AM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Lead sinkers in the gas tank.
I will tell you if you do not fill them to the neck there will be rust in them, we are going to have to drop RC's tanks. he filled
up a carb filter on our test drives!
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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: [GMCnet] Lead sinkers in the gas tank. [message #267598 is a reply to message #267596] |
Mon, 15 December 2014 14:30 |
George B.
Messages: 213
Registered: February 2012
Karma: 1
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If you have an external-inline fuel filter like the one in the picture can you eliminate the one in the carb ?
George Butts
Las Vegas Nevada
73 "Custom 26' Q" & 76 23' Birchaven
71 Honda 600 Coupe & 01 Tracker Toads
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| Re: [GMCnet] Lead sinkers in the gas tank. [message #267600 is a reply to message #267598] |
Mon, 15 December 2014 14:49 |
midlf
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
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George B. wrote on Mon, 15 December 2014 14:30If you have an external-inline fuel filter like the one in the picture can you eliminate the one in the carb ?
I didn't. The carb filter acts as the final backup for any upstream problem. If installed correctly it will not be a problem.
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
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| Re: [GMCnet] Lead sinkers in the gas tank. [message #267677 is a reply to message #267580] |
Tue, 16 December 2014 22:45 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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George Beckman wrote on Mon, 15 December 2014 09:30BobDunahugh wrote on Sun, 14 December 2014 21:54Just remembered today that I forgot to put sinkers in my tanks the last time I dropped my tanks. I put them in to roll around to keep rust from forming on the bottom of the tanks. Thought of putting them in the filler neck. But I think that they would all go into the back main tank. Maybe put two hand fulls in at once. Might increase the odds of some going in the front tank. Bob Dunahugh Member GMCMI
We California folks have had ethanol in our fuel for probably 15 years. When we dropped our tanks they were so shiny inside, you could eat off the bottoms.
BTW, in one tank a baffle broke off and so, other than causing a leak where the spot weld broke, perhaps it is helping keeping that tank polished. The other has to be ethanol. *smile*
George. I'm glad you mentioned that. The rest of the country has been living with Ethanol fot at least as long and it is blamed for everything that can go wrong with a GMC including burned out light bulbs  It's time for the group to realize it is here to stay and once old and neglected fuel systems are finally maintained and updated, Ethanol can actually have benefits.
Bob de Kruyff
78 Eleganza
Chandler, AZ
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| Re: [GMCnet] Lead sinkers in the gas tank. [message #267687 is a reply to message #267600] |
Wed, 17 December 2014 06:06 |
kerry pinkerton
Messages: 2565
Registered: July 2012
Location: Harvest, Al
Karma: 15
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midlf wrote on Mon, 15 December 2014 14:49 I didn't. The carb filter acts as the final backup for any upstream problem.
I guess I'm over filtered because I've actually got three filters. When I went all external electric pumps, I put (as the FACET instructions say and, more important, as Ken Henderson suggested) one of those metal in line filters before EACH fuel pump (with check valves to prevent back flow). There is also one just before the engine at the end of the steel line on the cross member same as Rob's photo. Finally there is the new one in the carb.
I also have about 4 spares in my parts bins in the coach.
Kerry Pinkerton - North Alabama
Had 5 over the years. Currently have a '06 Fleetwood Discovery 39L
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| Re: [GMCnet] Lead sinkers in the gas tank. [message #267695 is a reply to message #267687] |
Wed, 17 December 2014 10:08 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Gee, if this alcohol infused fuel (sounds like a holiday cocktail) is so
great and wonderful, why am I constantly replacing fuel lines, vent lines,
fuel pumps, vacuum lines and filters on customer's coaches. Why does it
boil on 85 degree days? YES, I AGREE. IT IS WHAT WE ARE SUPPLIED TO USE.
DOESN'T MAKE IT BETTER THAN STRAIGHT GASOLINE. REALITY IS SOMETIMES A
BITTER PILL. DON'T MAKE ANY DIFFERENCE how much alcohol you wash it down
with. That is my take on this. You all are entitled to your own opinions.
Jim Hupy
Salem, Or
78 GMC ROYALE 403
On Dec 17, 2014 4:06 AM, "Kerry Pinkerton" wrote:
> midlf wrote on Mon, 15 December 2014 14:49
>> I didn't. The carb filter acts as the final backup for any upstream
> problem.
>
>
> I guess I'm over filtered because I've actually got three filters. When I
> went all external electric pumps, I put (as the FACET instructions say and,
> more important, as Ken Henderson suggested) one of those metal in line
> filters before EACH fuel pump (with check valves to prevent back flow).
> There
> is also one just before the engine at the end of the steel line on the
> cross member same as Rob's photo. Finally there is the new one in the carb.
>
> I also have about 4 spares in my parts bins in the coach.
> --
> Kerry Pinkerton
>
> North Alabama, near Huntsville,
>
> 77 Eleganza II, "The Lady", 403CI, Manny Brakes, 1 ton, tranny also a 76
> Eleganza to be re-bodied as an Art Deco car hauler
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| Re: [GMCnet] Lead sinkers in the gas tank. [message #267696 is a reply to message #267554] |
Wed, 17 December 2014 10:12 |
Gatsbys' Cruiser
Messages: 91
Registered: August 2014
Location: Illinois
Karma: 0
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Good evening folks.
Seems a lot of topics are running around here.
I had never heard of adding lead to the gas tank to reduce rust. When my tanks were dropped some years ago to replace the fuel lines, they were clean and shiney. My fuel lines were leaking which was the cause of the need to drop the tanks.
My only documented experience with the addition of Ethanol was the loss of 50 miles per tank full on my cars, which at that time I was documenting 3 cars. The loss was across the board. In GMC terms, that would be more around 75 to 100 miles lost.
The only two other things that I am only casually aware of is the shelf life has shortened, the mechanics are all talking about this, and its aggressive attack on rubber that is not made for Ethanol fuels. None of these are rumors, each mechanic I spoke with had seen these phenomena on customers vehicles.
There is a new product that has just come out. Called STABLE360. This is supposed to be made for long term storage for Ethanol gas fueled vehicles. It is supposed to protect everything, including the metal tanks in the fuel system. Even the supply stores can't get this product yet, even though it is being advertised, but I found it at the AUTO ZONE. One bottle treats 60 gallons and costs $19.99. Look it up, the mechanic, and now the auto supply places that we talked to, want to carry this product because of its claims. It was made for Ethanol fuels.
I don't know if it prevents the Ethanol from puddling at the bottom of the Gasoline when in storage. I have read a couple of articles (internet) where they claim when the raw ethanol is pumped into the carb and burned in the engine, it caused expensive problems.
In regards to the carborator Supply FILTER, My GMC "Gatsbys' CRUISER" is just coming out of a repair of the fuel / engine carb system which had a power loss problem that I have battled for literally YEARS. This year I said I was going to find the problem. This project started in the Spring of this year and is just ending now. The plan was straight forward with simple replacements and upgrades. But Every step we took forward, we found another unexpected problem that took us back. It was an incredible experience that I hope no one ever has to go through. But we found that the filter at the carb had done its job until the failing point. With all the unkown weaknesses in fuel and systems to day, I will tell you to NEVER RUN WITHOUT THAT CARBORATOR INLET FILTER. Gatsbys' CRUISER has three fuel filters, one by the fuel tanks, one before the mechanical fuel pump and the carborator inlet filter. These filters were crucial when the need came up to find a fuel contaminant source that was found. I now believe that there cannot be too many fuel filters
Much thanks to Jim Bounds for working with my mechanic and supplying us with needed parts and all that valuable information. I owe you a dinner.
[Updated on: Wed, 17 December 2014 10:22] Report message to a moderator |
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| Re: [GMCnet] : Lead sinkers in the gas tank. [message #267704 is a reply to message #267699] |
Wed, 17 December 2014 14:05 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Bob, you and I are in agreement as to the sinkers. They don't hurt
anything, and if there is any rust in the tanks, it is possible that it may
dislodge it. The socks on the fuel pickups perhaps might plug IF THERE WAS
SUFFICIENT RUST AND CRUD THAT WAS PRESENT AND DISLODGED. If the particles
were small enough to pass through the socks, then downstream filters should
do the trick. If the hose used for fuel lines is Gates Barricade or the
Goodyear equivalent of it, they will resist alcohol degradation longer than
ordinary rubber fuel hose will. But my personal experience with hoses tells
me to be ever vigilant of them when alcohol is present in gasoline. MY
PERSONAL PREFERENCE , BASED ON EXPERIENCE WITH BOTH NON AND INCLUDED
ALCOHOL DILUTED GASOLINE, is to seek out and use the non alcohol version in
my GMC. It is much less prone to vapor lock and other similar acting fuel
related phenomenon. Economy is kind of a wash because the additional cost
of fuel with alcohol left out of it offsets the better mpg benefits. I do
notice a difference in mileage. Verified it on a number of long trips. 8
mpg with alcohol, 10 plus without it. I agree. We are stuck with it.
Government will never agree to go back to a consumable product that will
yield them 10% less tax revenue. They are already looking at a per mile
traveled tax in addition to existing gasoline taxes to enhance the portion
of gasoline taxes that are lost by electric and hybrid vehicles. Officials
and legislative members are wringing their hands and moaning about it here
in Oregon. That is the way it is. But I don't have to like it, nor do I
have to vote to re elect those that do. (grin)
Jim Hupy
Salem, Or
78 GMC ROYALE 403
On Dec 17, 2014 11:18 AM, "Bob Dunahugh" wrote:
>
>
> The sinkers are a PM thing that certainly aren't going to harm anything.
> As to hoses. I replace all the hoses i my 78 GMC in 2003. I used only
> Goodyear fuel line. Those hoses have Goodyear printed all over them. And
> are date. Last winter I examined most of them. Had only Ethanol used in
> them. There all in good shape. I paid the price for good hose. You get
> what you pay for. I also have a 65 Corvair that I changed jet size to run
> on E-85. No issues in the last 3 years. My suggestion is buy an appropriate
> hose. Bob Dunahugh Member GMCMI
> _______________________________________________
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| Re: [GMCnet] : Lead sinkers in the gas tank. [message #267708 is a reply to message #267704] |
Wed, 17 December 2014 16:09 |
Chuck Garton
Messages: 54
Registered: June 2006
Karma: 0
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I am a California resident. My tanks are always clean and shiny.
A few years back, I replaced my "rubber" fuel lines with metal lines. There
are places where I had to use "rubber" line. I used the high pressure
"rubber" lines, and mostly in places where I could see them thus proving
the (if you can see them, they won't rot) theory. I talked about this in my
"third Tank Installation" article on the Pacific Cruisers Web Site (
www.gmcpc.org) under "Shadetree".
On Wed, Dec 17, 2014 at 12:05 PM, James Hupy wrote:
>
> Bob, you and I are in agreement as to the sinkers. They don't hurt
> anything, and if there is any rust in the tanks, it is possible that it may
> dislodge it. The socks on the fuel pickups perhaps might plug IF THERE WAS
> SUFFICIENT RUST AND CRUD THAT WAS PRESENT AND DISLODGED. If the particles
> were small enough to pass through the socks, then downstream filters should
> do the trick. If the hose used for fuel lines is Gates Barricade or the
> Goodyear equivalent of it, they will resist alcohol degradation longer than
> ordinary rubber fuel hose will. But my personal experience with hoses tells
> me to be ever vigilant of them when alcohol is present in gasoline. MY
> PERSONAL PREFERENCE , BASED ON EXPERIENCE WITH BOTH NON AND INCLUDED
> ALCOHOL DILUTED GASOLINE, is to seek out and use the non alcohol version in
> my GMC. It is much less prone to vapor lock and other similar acting fuel
> related phenomenon. Economy is kind of a wash because the additional cost
> of fuel with alcohol left out of it offsets the better mpg benefits. I do
> notice a difference in mileage. Verified it on a number of long trips. 8
> mpg with alcohol, 10 plus without it. I agree. We are stuck with it.
> Government will never agree to go back to a consumable product that will
> yield them 10% less tax revenue. They are already looking at a per mile
> traveled tax in addition to existing gasoline taxes to enhance the portion
> of gasoline taxes that are lost by electric and hybrid vehicles. Officials
> and legislative members are wringing their hands and moaning about it here
> in Oregon. That is the way it is. But I don't have to like it, nor do I
> have to vote to re elect those that do. (grin)
> Jim Hupy
> Salem, Or
> 78 GMC ROYALE 403
> On Dec 17, 2014 11:18 AM, "Bob Dunahugh" wrote:
>
>>
>>
>> The sinkers are a PM thing that certainly aren't going to harm
> anything.
>> As to hoses. I replace all the hoses i my 78 GMC in 2003. I used only
>> Goodyear fuel line. Those hoses have Goodyear printed all over them. And
>> are date. Last winter I examined most of them. Had only Ethanol used in
>> them. There all in good shape. I paid the price for good hose. You get
>> what you pay for. I also have a 65 Corvair that I changed jet size to
> run
>> on E-85. No issues in the last 3 years. My suggestion is buy an
> appropriate
>> hose. Bob Dunahugh Member GMCMI
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
> _______________________________________________
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| Re: [GMCnet] : Lead sinkers in the gas tank. [message #267728 is a reply to message #267704] |
Wed, 17 December 2014 21:00 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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Senior Member |
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Many of these coaches are due for their second or third fuel system refurb and there isn't a reason in the world why ethanol laced fuel can't be comprehended in the process. New fuel lines/hoses, carb rebuilds, booster or in-tank fuel pumps have been adopted by members who want to move forward rather than wring their hands. I've had my coach for 20 years and I suspect it has always been filled with ethanol laced fuel. Fuel without ethanol is simply not available within any reasonable distance of home nor where I want to go. Many of the complaints I read about are simply due to lack of maintenance on 40 year old systems--ethanol or not. I agree that vapor lock is aggravated by ethanol but not to a crippling amount. Those with severe vapor lock have basic system problems unrelated to the fuel. Once a system has been updated, I think it will be as trouble free as ever. I'll bet there are coaches running around with fuel systems that have never been refreshed much less 2 or 3 times in 40 years and yet people feel entitled to p..s and moan.
Bob de Kruyff
78 Eleganza
Chandler, AZ
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