Home » Public Forums » GMCnet » [GMCnet] Unused Mechanical Fuel Pump
| [GMCnet] Unused Mechanical Fuel Pump [message #151070] |
Wed, 30 November 2011 09:57  |
bdub
Messages: 1578
Registered: February 2004
Location: Central Texas
Karma: 5
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Senior Member |
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I finally finished my "In Tank", low pressure electric fuel pumps project
yesterday. Initial test worked like a charm. :-)
Initially, gasoline was spewing from somewhere. I shut down and double
checked all connections but was unable to find the leak. Finally realized
that I had left the mechanical fuel pump open and it was pumping what was
left in the lines onto the fan. Duh! So I just temporarily plugged it.
I would like to drive it a while to make sure everything is going to
continue to be satisfactory. I'm wondering if there would be anything wrong
with just leaving the mechanical fuel pump on the motor. It won't be
pumping anything but I can't see that it would hurt the diaphragm. What do
ya'll think?
I've got some photos of the project and will post them when I get a round
tuit.
Thanks GMCnet and especially Emery Stora, , Steve Southworth, Bill Bramlett,
Bob Musgrove and other pioneers for sharing their experiences and ideas.
bdub
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bdub
'76 Palm Beach/Central Texas
www.bdub.net
www.gmcmhphotos.com
www.gmcmotorhomemarketplace.com
www.gmcmhregistry.com
www.facebook.com/groups/classicgmcmotorhomes
www.facebook.com/groups/gmcmm
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| Re: [GMCnet] Unused Mechanical Fuel Pump [message #151071 is a reply to message #151070] |
Wed, 30 November 2011 10:09  |
sgltrac
Messages: 2797
Registered: April 2011
Karma: 1
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Jim K sells a block off plate and gasket for $20
Sully
77 royale
Sent from my Verizon Wireless BlackBerry
-----Original Message-----
From: "Billy Massey" <bdub@bdub.net>
Sender: gmclist-bounces@temp.gmcnet.org
Date: Wed, 30 Nov 2011 09:57:27
To: <gmclist@temp.gmcnet.org>
Reply-To: gmclist@temp.gmcnet.org
Subject: [GMCnet] Unused Mechanical Fuel Pump
I finally finished my "In Tank", low pressure electric fuel pumps project
yesterday. Initial test worked like a charm. :-)
Initially, gasoline was spewing from somewhere. I shut down and double
checked all connections but was unable to find the leak. Finally realized
that I had left the mechanical fuel pump open and it was pumping what was
left in the lines onto the fan. Duh! So I just temporarily plugged it.
I would like to drive it a while to make sure everything is going to
continue to be satisfactory. I'm wondering if there would be anything wrong
with just leaving the mechanical fuel pump on the motor. It won't be
pumping anything but I can't see that it would hurt the diaphragm. What do
ya'll think?
I've got some photos of the project and will post them when I get a round
tuit.
Thanks GMCnet and especially Emery Stora, , Steve Southworth, Bill Bramlett,
Bob Musgrove and other pioneers for sharing their experiences and ideas.
bdub
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Sully
77 Royale basket case.
Future motorhome land speed record holder(bucket list)
Seattle, Wa.
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| Re: [GMCnet] Unused Mechanical Fuel Pump [message #151073 is a reply to message #151071] |
Wed, 30 November 2011 10:29 |
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hnielsen2
Messages: 1434
Registered: February 2004
Location: Alpine CA
Karma: 0
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You can also find one at Pep Boys.
Howard
Alpine CA
----- Original Message -----
From: <sgltrac@gmail.com>
To: <gmclist@temp.gmcnet.org>
Sent: Wednesday, November 30, 2011 8:09 AM
Subject: Re: [GMCnet] Unused Mechanical Fuel Pump
> Jim K sells a block off plate and gasket for $20
>
> Sully
> 77 royale
> Sent from my Verizon Wireless BlackBerry
>
> -----Original Message-----
> From: "Billy Massey" <bdub@bdub.net>
> Sender: gmclist-bounces@temp.gmcnet.org
> Date: Wed, 30 Nov 2011 09:57:27
> To: <gmclist@temp.gmcnet.org>
> Reply-To: gmclist@temp.gmcnet.org
> Subject: [GMCnet] Unused Mechanical Fuel Pump
>
> I finally finished my "In Tank", low pressure electric fuel pumps project
> yesterday. Initial test worked like a charm. :-)
>
>
>
> Initially, gasoline was spewing from somewhere. I shut down and double
> checked all connections but was unable to find the leak. Finally realized
> that I had left the mechanical fuel pump open and it was pumping what was
> left in the lines onto the fan. Duh! So I just temporarily plugged
> it.
>
>
>
>
> I would like to drive it a while to make sure everything is going to
> continue to be satisfactory. I'm wondering if there would be anything
> wrong
> with just leaving the mechanical fuel pump on the motor. It won't be
> pumping anything but I can't see that it would hurt the diaphragm. What
> do
> ya'll think?
>
>
>
> I've got some photos of the project and will post them when I get a round
> tuit.
>
>
>
> Thanks GMCnet and especially Emery Stora, , Steve Southworth, Bill
> Bramlett,
> Bob Musgrove and other pioneers for sharing their experiences and ideas.
>
>
>
> bdub
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> _______________________________________________
> GMCnet mailing list
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All is well with my Lord
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| Re: [GMCnet] Unused Mechanical Fuel Pump [message #151075 is a reply to message #151070] |
Wed, 30 November 2011 10:53 |
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John Heslinga
Messages: 632
Registered: February 2011
Location: Edmonton, Alberta, Canada
Karma: 4
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Senior Member |
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Bill:
No problem leaving the pump there for a while. However, you might find it makes some extra noise. The pump diaphragm will be doing full strokes and you will hear the valves buzz as it pumps air. Once you are confidant your system works you can remove it. A piece of 1/4 to 5/16 metal plate, hacksaw, drill and file plus 20 minutes will make a suitable block of plate. Once it is off, use the fuel pump mounting base for shape and measurements. They are not critical, you just need to cover and seal the hole for leaks. There is no pressure. (or order Jims)
Best regards
John
John and Cathie Heslinga
1974 Canyonlands 260
455, Manny tranny and 1 ton, 3:70 LS,
Red Seal Journeyman, DTE, BEd. MEd.
Edmonton, Alberta
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| [GMCnet] In Tank Fuel pump kit for carbs [message #151079 is a reply to message #151070] |
Wed, 30 November 2011 11:09 |
emerystora
Messages: 4442
Registered: January 2004
Karma: 13
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Senior Member |
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Jim Kanomata at Applied GMC is now making a low pressure in-tank kit for use with carbs.
You can see it at http://www.appliedgmc.com/search.itml?icQuery=fuel+pump
It is the one labeled In Tank Fuel Pump Kits - XX
Jim had delayed coming out with this kit until he found a fuel hose for the connection that would not be affected by methanol either inside the hose or outside of it.
This should be a great help with vapor lock since the pump in in the tank and pressurizes the line all the way. It also doesn't require a pressure reducer at the carb and it doesn't require a return line to the tank as the high pressure pump for TBI requires.
Emery Stora
77 Kingsley
Santa Fe, NM
On Nov 30, 2011, at 8:57 AM, Billy Massey wrote:
> I finally finished my "In Tank", low pressure electric fuel pumps project
> yesterday. Initial test worked like a charm. :-)
>
>
>
> Initially, gasoline was spewing from somewhere. I shut down and double
> checked all connections but was unable to find the leak. Finally realized
> that I had left the mechanical fuel pump open and it was pumping what was
> left in the lines onto the fan. Duh! So I just temporarily plugged it.
>
>
>
>
> I would like to drive it a while to make sure everything is going to
> continue to be satisfactory. I'm wondering if there would be anything wrong
> with just leaving the mechanical fuel pump on the motor. It won't be
> pumping anything but I can't see that it would hurt the diaphragm. What do
> ya'll think?
>
>
>
> I've got some photos of the project and will post them when I get a round
> tuit.
>
>
>
> Thanks GMCnet and especially Emery Stora, , Steve Southworth, Bill Bramlett,
> Bob Musgrove and other pioneers for sharing their experiences and ideas.
>
>
>
> bdub
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Emery Stora
77 Kingsley
Santa Fe, NM
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| Re: [GMCnet] Unused Mechanical Fuel Pump [message #151081 is a reply to message #151075] |
Wed, 30 November 2011 11:27 |
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Hey John.
That's the answer I was looking for. And about what I suspected.
No problem making a block-off plate as I've got the material handy.
Thanks
bdub
-----Original Message-----
From: On Behalf Of John Heslinga
No problem leaving the pump there for a while. However, you might find it
makes some extra noise. The pump diaphragm will be doing full strokes and
you will hear the valves buzz as it pumps air.
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bdub
bdub.net
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| Re: [GMCnet] In Tank Fuel pump kit for carbs [message #151091 is a reply to message #151079] |
Wed, 30 November 2011 12:44 |
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Wow! I'm always a day late and a dollar short. This kit sure would have
made it easier on me. The hardest parts to find were the little nylon
flange bushings and washers. I paid much more in postage than they were
worth after running all over town looking for them. UPS and USPS made out
like bandits on this project. Got a good deal on the pumps but then
shipping negated that also.
I used regular electrical wire and the hose that came with the pumps. I'll
probably have to use the access holes I cut in the floor to replace them
when they rot out from the ethanol. :-(
This kit would be perfect if it included a wiring kit that includes the oil
pressure switch with a tee to plumb it in and the relay to switch pumps as
well as a detailed set of instructions.
I did it the hard way (as usual) and it only took me 4 months!
bdub
-----Original Message-----
From: On Behalf Of Emery Stora
Jim Kanomata at Applied GMC is now making a low pressure in-tank kit for use
with carbs.
You can see it at http://www.appliedgmc.com/search.itml?icQuery=fuel+pump
It is the one labeled In Tank Fuel Pump Kits - XX
Jim had delayed coming out with this kit until he found a fuel hose for the
connection that would not be affected by methanol either inside the hose or
outside of it.
This should be a great help with vapor lock since the pump in in the tank
and pressurizes the line all the way. It also doesn't require a pressure
reducer at the carb and it doesn't require a return line to the tank as the
high pressure pump for TBI requires.
On Nov 30, 2011, at 8:57 AM, Billy Massey wrote:
> I finally finished my "In Tank", low pressure electric fuel pumps project
> yesterday. Initial test worked like a charm. :-)
>
> Initially, gasoline was spewing from somewhere. I shut down and double
> checked all connections but was unable to find the leak. Finally realized
> that I had left the mechanical fuel pump open and it was pumping what was
> left in the lines onto the fan. Duh! So I just temporarily plugged
it.
>
> I would like to drive it a while to make sure everything is going to
> continue to be satisfactory. I'm wondering if there would be anything
wrong
> with just leaving the mechanical fuel pump on the motor. It won't be
> pumping anything but I can't see that it would hurt the diaphragm. What
do
> ya'll think?
>
> I've got some photos of the project and will post them when I get a round
> tuit.
>
> Thanks GMCnet and especially Emery Stora, , Steve Southworth, Bill
Bramlett,
> Bob Musgrove and other pioneers for sharing their experiences and ideas.
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
bdub
bdub.net
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| Re: [GMCnet] Unused Mechanical Fuel Pump [message #151162 is a reply to message #151070] |
Thu, 01 December 2011 01:15 |
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John Heslinga
Messages: 632
Registered: February 2011
Location: Edmonton, Alberta, Canada
Karma: 4
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Senior Member |
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I'm not the only one to say this but I feel it is important to remind all of you who are using any kind of electric fuel pump or plan to install one.
An out-of-control fuel pump is a major fire hazard. Always wire in an automatic disable when the engine dies. The most common disable stratigy is using an oil pressure switch. There may be other pictures identifying how to install an oil pressure switch, but here is the one I just installed on my engine. It is a universal switch specified by Carter in their Fuel pump Catalog. Most parts persons do not know about the switch and never suggest it or can never seem to find it. Tell them to look at the electric pump page. The number will be there.
http://www.gmcmhphotos.com/photos/showphoto.php?photo=41636&title=oil-pressure-safety-switch-for-electric-fuel-pump&cat=500
The switch comes with a wiring diagram to follow.
I will be installing a bracket made from 1/2" X 1/8" Hot rolled steel strapping to give structual support to the end of the brass nipples. I drilled a 1/4" hole in the block web for the bolt. I also use a low beam headlight plug for the pigtail. They can be purchased at any parts store.
I have seen failures in these types of switches that feed back voltage to the starter so I wire them slightly different. But that is a different discussion.
Best regards
John and Cathie Heslinga
1974 Canyonlands 260
455, Manny tranny and 1 ton, 3:70 LS,
Red Seal Journeyman, DTE, BEd. MEd.
Edmonton, Alberta
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| Re: [GMCnet] In Tank Fuel pump kit for carbs [message #151171 is a reply to message #151079] |
Thu, 01 December 2011 08:09 |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
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Senior Member |
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I talked with Jim yesterday afternoon on a parts order and he said he
could do the in tank system with a high pressure pump soon. This is
really a good price for an in tank system and it requires very little
mods on the sender other than the addition of the wiring for the
pump. So you can use you're existing sending unit if it works or get
a new sender as part of the kit also.
JR Wright
GMC Great Laker MHC
GMC Eastern States
GMCMHI
78 Buskirk 30' Stretch
1975 Avion (Under Reconstruction)
Michigan
> Jim Kanomata at Applied GMC is now making a low pressure in-tank kit
> for use with carbs.
> You can see it at http://www.appliedgmc.com/search.itml?icQuery=fuel+pump
> It is the one labeled In Tank Fuel Pump Kits - XX
>
> Jim had delayed coming out with this kit until he found a fuel hose
> for the connection that would not be affected by methanol either
> inside the hose or outside of it.
>
> This should be a great help with vapor lock since the pump in in the
> tank and pressurizes the line all the way. It also doesn't require
> a pressure reducer at the carb and it doesn't require a return line
> to the tank as the high pressure pump for TBI requires.
>
> Emery Stora
> 77 Kingsley
> Santa Fe, NM
>
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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| Re: [GMCnet] In Tank Fuel pump kit for carbs [message #151187 is a reply to message #151174] |
Thu, 01 December 2011 11:12 |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
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Senior Member |
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Yes, by all means it could be done without pulling the tanks if you
know that your fuel lines are at a Minamun of a SAE 30 R9 barrier fuel
hose or have been replaced with steel lines on top of the tanks. If
you have fuel lines of SAE 30 R7 or of an unknown material that are 5
years old or have never been changed that you are aware of then you
should take the time and fix your fuel system correctly. There is a
new fuel line available SAE 30 R10 which is for constant contact with
fuel on both the inside and outside. This is the hose that Jim uses
in his kit to hitch the pump to the sender. Take no short cuts in the
fuel system!
JR Wright
GMC Great Laker MHC
GMC Eastern States
GMCMHI
78 Buskirk 30' Stretch
1975 Avion (Under Reconstruction)
Michigan
> and now easily done with a hole in the floor ;>)
> http://gmcmotorhome.info/Fuel.html#senders
>
> see the last link on how JimW hid the hole ;>)
>
> gene
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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| Re: [GMCnet] Unused Mechanical Fuel Pump [message #151191 is a reply to message #151168] |
Thu, 01 December 2011 13:03 |
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Ken Henderson wrote on Thu, 01 December 2011 05:08]Easiest for me to remember is "76 Vega":
It's the same part -- $12.99 at AutoZone.
On Thu, Dec 1, 2011 at 2:15 AM, John Heslinga wrote:
>
>
> I'm not the only one to say this but I feel it is important to remind all > of you who are using any kind of electric fuel pump or plan to install one. An out-of-control fuel pump is a major fire hazard. Always wire in an > automatic disable when the engine dies. The most common disable stratigy is > using an oil pressure switch. There may be other pictures identifying how
> to install an oil pressure switch, but here is the one I just installed on > my engine. It is a universal switch specified by Carter in their Fuel pump > Catalog. Most parts persons do not know about the switch and never suggest > it or can never seem to find it. Tell them to look at the electric pump
> page. The number will be there.
I agree this is an important consideration; the picture shows a tee configuration, apparantely brass. I would just warn that the extra weight of the tee and switch has caused my brass nipple to fail twice (a small crack). I am planning to use steel in this configuration as I switch to a full-time electric pump and McMaster Carr carries the steel.
geo groth '73 260 Sequoia
Carson City Nevada 89703
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| Re: [GMCnet] In Tank Fuel pump kit for carbs [message #151249 is a reply to message #151079] |
Thu, 01 December 2011 20:38 |
midlf
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
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Senior Member |
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$56 is an excellent price for this kit. I paid $62 just for the pump and strainer. My total cost for each tank is $103 because I had to order lots of the seal washers, Teflon wire, and the special hose. JimK wants less for the entire assembly at $60 than I paid for just the main parts!!!!
Anyone that wants to complain about JimmyK and Applied GMC better not complain to me.
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
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| Re: [GMCnet] In Tank Fuel pump kit for carbs [message #151457 is a reply to message #151249] |
Sat, 03 December 2011 17:24 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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The pump has its own insulated connection for a positive line and the
relay does the flipping the power to the pump.
On Thu, Dec 1, 2011 at 6:38 PM, Steve Southworth <midlf@centurytel.net> wrote:
>
>
> emerystora wrote on Wed, 30 November 2011 11:09
>> Jim Kanomata at Applied GMC is now making a low pressure in-tank kit for use with carbs.
>> You can see it at  http://www.appliedgmc.com/search.itml?icQuery=fuel+pump
>> It is the one labeled  In Tank Fuel Pump Kits - XX
>>
>>
>> Emery Stora
>
>
> $56 is an excellent price for this kit. Â I paid $62 just for the pump and strainer. Â My total cost for each tank is $103 because I had to order lots of the seal washers, Teflon wire, and the special hose. Â JimK wants less for the entire assembly at $60 than I paid for just the main parts!!!!
>
> Anyone that wants to complain about JimmyK and Applied GMC better not complain to me.
>
> --
> Steve Southworth
> 1974 Glacier TZE064V100150 (for workin on)
> 1975 Transmode TZE365V100394 (parts & spares)
> Palmyra WI
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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