GMCforum: GMCnet » fuel pumps

Home » Public Forums » GMCnet » fuel pumps

Show: Today's Messages :: Polls :: Message Navigator

fuel pumps [message #219944]

Mon, 26 August 2013 02:34

jturbo

Messages: 76
Registered: August 2013
Location: Socal

Karma: 1

Member

replacing fuel pump with another mechanical.

The new one looks a bit different

Is this going to work and what do you do with the extra orifice coming off this pump

http://www.rockauto.com/getimage/getimage.php?imagekey=4436157&imageurl=http%3A%2F%2Fwww.rockauto.com%2Finfo%2FDelphi%2FMF0006A.jpg

It's listed as working but what do you do with the extra line?

original looked different with only 2 lines and one had a small can riser piece

1978 Royal 403 1977 Birchaven 455 1977 Kingsley 455 All under Upgrading and restoration Rosemead California

Report message to a moderator

Re: fuel pumps [message #219954 is a reply to message #219944]

Mon, 26 August 2013 06:50

SeanKidd

Messages: 747
Registered: June 2012
Location: Northern Neck Virginia

Karma: 4

Senior Member

The fuel pump designated for a Toronado with air on has a fuel return, our original does not have one...I used this pump and piped in a return to the fuel fill overflow, I needed to add a restrictor in the return to maintain proper pressure (used a short piece of 3/16 line)

Sean and Stephanie
73 Ex-CanyonLands 26' #317 "Oliver"
Hubler 1-Ton, Quad-Bags, Rear Disc, Reaction Arms, P.Huber TBs, 3.70:1 LSD Honda 6500 inverter gen.
Colonial Travelers

Report message to a moderator

Re: [GMCnet] fuel pumps [message #219955 is a reply to message #219944]

Mon, 26 August 2013 06:48

emerystora

Messages: 4442
Registered: January 2004

Karma: 13

Senior Member

John
You are looking at the wrong pump.

On the Rock Auto site the one you want would be the AC/Delco 41566 $27.79 or the Airtex 41566 $15.67 or the Carter M6108 which they have on closeout for $12.43.

The one you are showing in the link below has a fuel return line that goes back to the tank. This was not used on the GMC Motorhome.
I could be used if you crimp off the return and braze it or silver solder it closed. DO NOT attempt to put a rubber stopper over it as the rubber will degrade and eventually you wold be squirting fuel over your exhaust manifold and start a huge engine fire.

Emery Stora
77 Kingsley
Frederick, CO

On Aug 26, 2013, at 1:34 AM, john wrote:

>
>
> replacing fuel pump with another mechanical.
>
> The new one looks a bit different
>
> Is this going to work and what do you do with the extra orifice coming off this pump
>
> http://www.rockauto.com/getimage/getimage.php?imagekey=4436157&imageurl=http%3A%2F%2Fwww.rockauto.com%2Finfo%2FDelphi%2FMF0006A.jpg
>
> It's listed as working but what do you do with the extra line?
>
> original looked different with only 2 lines and one had a small can riser piece
>
>
> --
> 1978 Royal 403
> 1977 Birchaven 455
> 1977 Kingsley 455
>
> All under Upgrading and restoration
>
> Rosemead California
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

Report message to a moderator

[GMCnet] Fwd: fuel pumps [message #219959 is a reply to message #219955]

Mon, 26 August 2013 07:31

emerystora

Messages: 4442
Registered: January 2004

Karma: 13

Senior Member

John
Forgot to tell you to just put those part numbers in the Part Number Search tab on the Rock Auto site.

Emery Stora

Begin forwarded message:

> From: Emery Stora <emerystora@mac.com>
> Subject: Re: [GMCnet] fuel pumps
> Date: August 26, 2013 5:48:20 AM MDT
> To: gmclist@temp.gmcnet.org
> Cc: john <tg16jturbo@mac.com>
> Bcc: Emery Stora <emerystora@mac.com>
>
> John
> You are looking at the wrong pump.
>
> On the Rock Auto site the one you want would be the AC/Delco 41566 $27.79 or the Airtex 41566 $15.67 or the Carter M6108 which they have on closeout for $12.43.
>
> The one you are showing in the link below has a fuel return line that goes back to the tank. This was not used on the GMC Motorhome.
> I could be used if you crimp off the return and braze it or silver solder it closed. DO NOT attempt to put a rubber stopper over it as the rubber will degrade and eventually you wold be squirting fuel over your exhaust manifold and start a huge engine fire.
>
> Emery Stora
> 77 Kingsley
> Frederick, CO
>
> On Aug 26, 2013, at 1:34 AM, john wrote:
>
>>
>>
>> replacing fuel pump with another mechanical.
>>
>> The new one looks a bit different
>>
>> Is this going to work and what do you do with the extra orifice coming off this pump
>>
>> http://www.rockauto.com/getimage/getimage.php?imagekey=4436157&imageurl=http%3A%2F%2Fwww.rockauto.com%2Finfo%2FDelphi%2FMF0006A.jpg
>>
>> It's listed as working but what do you do with the extra line?
>>
>> original looked different with only 2 lines and one had a small can riser piece
>>
>>
>> --
>> 1978 Royal 403
>> 1977 Birchaven 455
>> 1977 Kingsley 455
>>
>> All under Upgrading and restoration
>>
>> Rosemead California
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>

_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

Report message to a moderator

Re: [GMCnet] fuel pumps [message #219968 is a reply to message #219944]

Mon, 26 August 2013 08:36

Jim Bounds

Messages: 842
Registered: January 2004

Karma: 0

Senior Member

It will work if you plug off the 3rd port.� You could run it over to the vaport return hose.� There has been a move to using a 3 port pump.� If you don;t wanna go through the hassle of a 3rd line-- plug it off or just buy the right one.� A 2 port unit, about every parts store hase them,
�
Jim Bounds
---------------------

________________________________
From: john <tg16jturbo@mac.com>
To: gmclist@temp.gmcnet.org
Sent: Monday, August 26, 2013 3:34 AM
Subject: [GMCnet] fuel pumps

replacing fuel pump with another mechanical.

The new one looks a bit different

Is this going to work and what do you do with the extra orifice coming off this pump

http://www.rockauto.com/getimage/getimage.php?imagekey=4436157&imageurl=http%3A%2F%2Fwww.rockauto.com%2Finfo%2FDelphi%2FMF0006A.jpg

It's listed as working but what do you do with the extra line?

original looked different with only 2 lines and one had a small can riser piece

--
1978 Royal 403
1977 Birchaven 455
1977 Kingsley 455

All under Upgrading and restoration

Rosemead California
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

Report message to a moderator

Re: [GMCnet] fuel pumps [message #220022 is a reply to message #219944]

Mon, 26 August 2013 08:48

zeke20

Messages: 24
Registered: August 2013

Karma: 0

Junior Member

I found the 1972 Tornado used the pump
To fit the 455 engine with 2 lines

Regards Zeke

On Aug 26, 2013, at 2:34, john <tg16jturbo@mac.com> wrote:

>
>
> replacing fuel pump with another mechanical.
>
> The new one looks a bit different
>
> Is this going to work and what do you do with the extra orifice coming off this pump
>
> http://www.rockauto.com/getimage/getimage.php?imagekey=4436157&imageurl=http%3A%2F%2Fwww.rockauto.com%2Finfo%2FDelphi%2FMF0006A.jpg
>
> It's listed as working but what do you do with the extra line?
>
> original looked different with only 2 lines and one had a small can riser piece
>
>
> --
> 1978 Royal 403
> 1977 Birchaven 455
> 1977 Kingsley 455
>
> All under Upgrading and restoration
>
> Rosemead California
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

Report message to a moderator

Re: fuel pumps [message #220052 is a reply to message #219944]

Mon, 26 August 2013 22:13

jturbo

Messages: 76
Registered: August 2013
Location: Socal

Karma: 1

Member

Fuel pump Nut

Does anyone know the Nut size for the top stud?

In the parts book it just list's a number not a size.

when removing the old pump tonight the nut took a trip to the ocean I guess through the gutter it rolled into.

The Pump is held in by two thing 1 bolt and 1 nut.

The nut is what I lost.

1978 Royal 403 1977 Birchaven 455 1977 Kingsley 455 All under Upgrading and restoration Rosemead California

Report message to a moderator

Re: [GMCnet] fuel pumps [message #220056 is a reply to message #220052]

Mon, 26 August 2013 22:16

Emery Stora

Messages: 959
Registered: January 2011

Karma: 4

Senior Member

Try the same thread side as the bolt.

Emery Stora

On Aug 26, 2013, at 9:13 PM, john <tg16jturbo@mac.com> wrote:

>
>
> Fuel pump Nut
>
> Does anyone know the Nut size for the top stud?
>
> In the parts book it just list's a number not a size.
>
> when removing the old pump tonight the nut took a trip to the ocean I guess through the gutter it rolled into.
>
>
> The Pump is held in by two thing 1 bolt and 1 nut.
>
> The nut is what I lost.
>
>
> --
> 1978 Royal 403
> 1977 Birchaven 455
> 1977 Kingsley 455
>
> All under Upgrading and restoration
>
> Rosemead California
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

Report message to a moderator

Re: [GMCnet] fuel pumps [message #220098 is a reply to message #220056]

Tue, 27 August 2013 11:14

James Hupy

Messages: 6806
Registered: May 2010

Karma: -62

Senior Member

Those nuts are fine thread. The stud is coarse on the end that goes into
the block, and fine on the end with the nut. Should be 5/16" NF nut.
Jim Hupy
Salem, OR
78 GMC Royale 403

On Mon, Aug 26, 2013 at 8:16 PM, Emery Stora <emerystora@me.com> wrote:

> Try the same thread side as the bolt.
>
> Emery Stora
>
> On Aug 26, 2013, at 9:13 PM, john <tg16jturbo@mac.com> wrote:
>
> >
> >
> > Fuel pump Nut
> >
> > Does anyone know the Nut size for the top stud?
> >
> > In the parts book it just list's a number not a size.
> >
> > when removing the old pump tonight the nut took a trip to the ocean I
> guess through the gutter it rolled into.
> >
> >
> > The Pump is held in by two thing 1 bolt and 1 nut.
> >
> > The nut is what I lost.
> >
> >
> > --
> > 1978 Royal 403
> > 1977 Birchaven 455
> > 1977 Kingsley 455
> >
> > All under Upgrading and restoration
> >
> > Rosemead California
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

Report message to a moderator

Re: [GMCnet] fuel pumps [message #220143 is a reply to message #219955]

Tue, 27 August 2013 19:58

kerry pinkerton

Messages: 2565
Registered: July 2012
Location: Harvest, Al

Karma: 15

Senior Member

emerystora wrote on Mon, 26 August 2013 06:48

John
You are looking at the wrong pump.
... DO NOT attempt to put a rubber stopper over it as the rubber will degrade and eventually you wold be squirting fuel over your exhaust manifold and start a huge engine fire.
...

Great advice Emery. My coach came with the 'WRONG' pump and a seepy plugged hose. I stopped the seep but had not thought about what would happy if the hose failed. New pump ordered from Rock Auto. Thanks!

Kerry Pinkerton - North Alabama Had 5 over the years. Currently have a '06 Fleetwood Discovery 39L

Report message to a moderator

Previous Topic:	Master Cylinder Pushrod
Next Topic:	Re: [GMCnet] losing power

Goto Forum:

-=] Back to Top [=-

Current Time: Sat Sep 28 17:22:36 CDT 2024

Total time taken to generate the page: 0.01207 seconds