fuel pump
- Thread starter charles boyd
- Start date
> > Y'all are looking for NON air conditioned fuel pump?
>
> Nope....i have AC
Sir; the AC fuel pump has three ports and is designed for a return line to tank. the NON AC fuel pump is the 2 port that the Motorhome uses.
--
C. Boyd
76 Crestmont
East Tennessee
>
> Nope....i have AC
Sir; the AC fuel pump has three ports and is designed for a return line to tank. the NON AC fuel pump is the 2 port that the Motorhome uses.
--
C. Boyd
76 Crestmont
East Tennessee
you are welcome but all I have found on the web is the 3 port. you can use it by blocking off the return port but is a possible leak down the road.
some have used the return line scabbed in the fill line to try to help vapor lock.
> > > > Y'all are looking for NON air conditioned fuel pump?
> > >
> > > Nope....i have AC
> >
> >
> >
> > Sir; the AC fuel pump has three ports and is designed for a return line to tank. the NON AC fuel pump is the 2 port that the Motorhome uses.
>
> Thank you for the correction.....
--
C. Boyd
76 Crestmont
East Tennessee
some have used the return line scabbed in the fill line to try to help vapor lock.
> > > > Y'all are looking for NON air conditioned fuel pump?
> > >
> > > Nope....i have AC
> >
> >
> >
> > Sir; the AC fuel pump has three ports and is designed for a return line to tank. the NON AC fuel pump is the 2 port that the Motorhome uses.
>
> Thank you for the correction.....
--
C. Boyd
76 Crestmont
East Tennessee
> you are welcome but all I have found on the web is the 3 port. you can use it by blocking off the return port but is a possible leak down the
> road. some have used the return line scabbed in the fill line to try to help vapor lock.
>
>
>
> might try jim k.. no telling what he has stashed in his rosy chipmunk cheeks.
>
>
>
>
> > > > > Y'all are looking for NON air conditioned fuel pump?
> > > >
> > > > Nope....i have AC
> > >
> > >
> > > Sir; the AC fuel pump has three ports and is designed for a return line to tank. the NON AC fuel pump is the 2 port that the Motorhome
> > > uses.
> >
> > Thank you for the correction.....
--
C. Boyd
76 Crestmont
East Tennessee
> road. some have used the return line scabbed in the fill line to try to help vapor lock.
>
>
>
> might try jim k.. no telling what he has stashed in his rosy chipmunk cheeks.
>
>
>
>
> > > > > Y'all are looking for NON air conditioned fuel pump?
> > > >
> > > > Nope....i have AC
> > >
> > >
> > > Sir; the AC fuel pump has three ports and is designed for a return line to tank. the NON AC fuel pump is the 2 port that the Motorhome
> > > uses.
> >
> > Thank you for the correction.....
--
C. Boyd
76 Crestmont
East Tennessee
The correct mechanical fuel pump's NAPA number should be in the GMCMI interchange listing. It is something like 7808 instead of 7809 or something like that.
D C "Mac" Macdonald
Amateur Radio K2GKK
Since 30 November '53
USAF and FAA, Retired
Member GMCMI & Classics
Oklahoma City, OK
"The Money Pit"
TZE166V101966
'76 ex-Palm Beach
k2gkk + hotmail dot com
Cell: 405-642-7337
________________________________
From: Gmclist on behalf of Charles Boyd via Gmclist
Sent: Tuesday, March 17, 2020 21:28
To: gmclist
Cc: Charles Boyd
Subject: Re: [GMCnet] fuel pump
you are welcome but all I have found on the web is the 3 port. you can use it by blocking off the return port but is a possible leak down the road.
some have used the return line scabbed in the fill line to try to help vapor lock.
> > > > Y'all are looking for NON air conditioned fuel pump?
> > >
> > > Nope....i have AC
> >
> >
> >
> > Sir; the AC fuel pump has three ports and is designed for a return line to tank. the NON AC fuel pump is the 2 port that the Motorhome uses.
>
> Thank you for the correction.....
--
C. Boyd
76 Crestmont
East Tennessee
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D C "Mac" Macdonald
Amateur Radio K2GKK
Since 30 November '53
USAF and FAA, Retired
Member GMCMI & Classics
Oklahoma City, OK
"The Money Pit"
TZE166V101966
'76 ex-Palm Beach
k2gkk + hotmail dot com
Cell: 405-642-7337
________________________________
From: Gmclist on behalf of Charles Boyd via Gmclist
Sent: Tuesday, March 17, 2020 21:28
To: gmclist
Cc: Charles Boyd
Subject: Re: [GMCnet] fuel pump
you are welcome but all I have found on the web is the 3 port. you can use it by blocking off the return port but is a possible leak down the road.
some have used the return line scabbed in the fill line to try to help vapor lock.
> > > > Y'all are looking for NON air conditioned fuel pump?
> > >
> > > Nope....i have AC
> >
> >
> >
> > Sir; the AC fuel pump has three ports and is designed for a return line to tank. the NON AC fuel pump is the 2 port that the Motorhome uses.
>
> Thank you for the correction.....
--
C. Boyd
76 Crestmont
East Tennessee
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Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
Jim K has them.
https://www.gmcrvparts.com/category-s/166.htm
--
Bill Wevers GMC49ers, GMC Western States
1975 Glenbrook - Manny Powerdrive, OneTon
455 F Block, G heads
San Jose
https://www.gmcrvparts.com/category-s/166.htm
--
Bill Wevers GMC49ers, GMC Western States
1975 Glenbrook - Manny Powerdrive, OneTon
455 F Block, G heads
San Jose
Another viable alternative, if you can't obtain a mechanical pump, would be to ditch it and install a block-off plate on the engine and a Carter
P-4070 electric pump back by the gas tanks.
You might like it better anyway. It will definitely help with vapor lock.
--
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles,
Solar battery charging. GMCSJ and GMCMI member
P-4070 electric pump back by the gas tanks.
You might like it better anyway. It will definitely help with vapor lock.
--
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles,
Solar battery charging. GMCSJ and GMCMI member
See the first ten pictures: http://www.gmcmhphotos.com/photos/g6198-cane-9-creek-rv-park-heflin-2c-al.html
Dump the supplied filters, which will leak around the swaged join and replace them with the WIX exact replacement part. No check valve needed. Run
the relay off the tank selector wire, and power the pumps through it with 12 volts from the ignition through a Ford safety switch or an oil pressure
switch. The threaded adapter and blank flange allow you to return to stock roadside if you ever wanted to. None of the original fuel lines are cut
or changed, just moved and you make up the tee section. No vapor lock since its install unless the new owner has had a problem. I ran it for a
couple of years. For FI, replace the pumps and filters with ones designed for your system and use a return system to the fill tube.
--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
Dump the supplied filters, which will leak around the swaged join and replace them with the WIX exact replacement part. No check valve needed. Run
the relay off the tank selector wire, and power the pumps through it with 12 volts from the ignition through a Ford safety switch or an oil pressure
switch. The threaded adapter and blank flange allow you to return to stock roadside if you ever wanted to. None of the original fuel lines are cut
or changed, just moved and you make up the tee section. No vapor lock since its install unless the new owner has had a problem. I ran it for a
couple of years. For FI, replace the pumps and filters with ones designed for your system and use a return system to the fill tube.
--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
> Thanks for the insight....im actually thinking both as i think its a long way for the mechanical to suck fuel and the electric would be both a
> good back up plus a good feeder.
>
> > Another viable alternative, if you can't obtain a mechanical pump, would be to ditch it and install a block-off plate on the engine and a
> > Carter P-4070 electric pump back by the gas tanks.
> >
> > You might like it better anyway. It will definitely help with vapor lock.
I have both a Carter electric pump (hooked up to my aux. tank) and a mechanical pump on my engine. I probably don't need both, but I like the
redundancy.
--
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles,
Solar battery charging. GMCSJ and GMCMI member
> good back up plus a good feeder.
>
> > Another viable alternative, if you can't obtain a mechanical pump, would be to ditch it and install a block-off plate on the engine and a
> > Carter P-4070 electric pump back by the gas tanks.
> >
> > You might like it better anyway. It will definitely help with vapor lock.
I have both a Carter electric pump (hooked up to my aux. tank) and a mechanical pump on my engine. I probably don't need both, but I like the
redundancy.
--
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles,
Solar battery charging. GMCSJ and GMCMI member
I don't have my parts book handy, but I had a good fuel pump when the under sized engine stand toppled and it was crushed. I got a replacement from
Rock Auto along with a whole bunch of other parts for the overhaul. When I got back on the road, there was a worsening fuel leak during the Amana
run. When back in the barn, I found it to be the joint between the cover and the body of the fuel pump. I needed one fast. I could find the other
number with the bleeder vent locally so that went on. When we got home, I approached Rock about a replacement under warranty.
Their response:
Not happening.
That pump was not for that vehicle don't bother us about it. (I have done my best to not bother them since.)
I contacted the manufacturer (Airdyn?), because it must be their catalog is bad.
Their response, "Here comes a pump. Please ship that bad one back in the packaging."
And, "Oh, Rock Auto is not an authorized distributor. They might have second sourced it." That also means that it could have been old stock - pre
alcohol.
I still have the one with the return vent, but I want to fit a pair of electrics on there next.
Matt
--
Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan
OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Twixt A2 and Detroit
Rock Auto along with a whole bunch of other parts for the overhaul. When I got back on the road, there was a worsening fuel leak during the Amana
run. When back in the barn, I found it to be the joint between the cover and the body of the fuel pump. I needed one fast. I could find the other
number with the bleeder vent locally so that went on. When we got home, I approached Rock about a replacement under warranty.
Their response:
Not happening.
That pump was not for that vehicle don't bother us about it. (I have done my best to not bother them since.)
I contacted the manufacturer (Airdyn?), because it must be their catalog is bad.
Their response, "Here comes a pump. Please ship that bad one back in the packaging."
And, "Oh, Rock Auto is not an authorized distributor. They might have second sourced it." That also means that it could have been old stock - pre
alcohol.
I still have the one with the return vent, but I want to fit a pair of electrics on there next.
Matt
--
Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan
OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Twixt A2 and Detroit
If you go electric, carry a spare (or 3) on board. Been driving GM since 1969 and never had a mechanical pump fail. I have dropped many tanks on EFI
cars however.
--
John Lebetski
Woodstock, IL
77 Eleganza II
cars however.
--
John Lebetski
Woodstock, IL
77 Eleganza II
> If you go electric, carry a spare (or 3) on board. Been driving GM since 1969 and never had a mechanical pump fail. I have dropped many tanks on
> EFI cars however.
I will second that. The last mechanical fuel pump I replaced was on a 1954 Ford for a friend when I was 18. That was almost 60 years ago. I have
replaced more electric ones that I care to remember on various brands and types of vehicles.
If I were going to go only electric on a GMC, I would install two pumps (one on each tank) so I had a ready standby spare. Then you could simply
switch tanks (and pumps) and continue on your way.
I did once tow a GMC friend a few miles back to Bean Station that had a mechanical fuel pump failure. We went to the auto parts store on a Sunday and
got a replacement pump the he installed.
--
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
> EFI cars however.
I will second that. The last mechanical fuel pump I replaced was on a 1954 Ford for a friend when I was 18. That was almost 60 years ago. I have
replaced more electric ones that I care to remember on various brands and types of vehicles.
If I were going to go only electric on a GMC, I would install two pumps (one on each tank) so I had a ready standby spare. Then you could simply
switch tanks (and pumps) and continue on your way.
I did once tow a GMC friend a few miles back to Bean Station that had a mechanical fuel pump failure. We went to the auto parts store on a Sunday and
got a replacement pump the he installed.
--
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
The most usually reliable electric fuel pumps are the ones that stay
immersed in fuel in the tanks. The fuel acts as a coolant and lubricant for
those pumps. Those advantages can be negated by the owners habit of running
on fumes rather than keeping the tanks full enough to cover the pumps. If
you are one of those people, then use the in-line style pumps.
Another good option is to use a small (1 or 2 gallon) auxiliary tank
that is constantly full where the fuel pump can stay immersed all the time.
This especially applies to EFI systems. These small aux tanks can also
serve as a receptacle for the bypassed fuel. My 2 cents.
Jim Hupy
Salem,Oregon
On Thu, Mar 19, 2020, 10:16 PM Ken Burton via Gmclist <
> > If you go electric, carry a spare (or 3) on board. Been driving GM since
> 1969 and never had a mechanical pump fail. I have dropped many tanks on
> > EFI cars however.
>
> I will second that. The last mechanical fuel pump I replaced was on a
> 1954 Ford for a friend when I was 18. That was almost 60 years ago. I have
> replaced more electric ones that I care to remember on various brands and
> types of vehicles.
>
> If I were going to go only electric on a GMC, I would install two pumps
> (one on each tank) so I had a ready standby spare. Then you could simply
> switch tanks (and pumps) and continue on your way.
>
> I did once tow a GMC friend a few miles back to Bean Station that had a
> mechanical fuel pump failure. We went to the auto parts store on a Sunday
> and
> got a replacement pump the he installed.
>
> --
> Ken Burton - N9KB
> 76 Palm Beach
> Hebron, Indiana
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
immersed in fuel in the tanks. The fuel acts as a coolant and lubricant for
those pumps. Those advantages can be negated by the owners habit of running
on fumes rather than keeping the tanks full enough to cover the pumps. If
you are one of those people, then use the in-line style pumps.
Another good option is to use a small (1 or 2 gallon) auxiliary tank
that is constantly full where the fuel pump can stay immersed all the time.
This especially applies to EFI systems. These small aux tanks can also
serve as a receptacle for the bypassed fuel. My 2 cents.
Jim Hupy
Salem,Oregon
On Thu, Mar 19, 2020, 10:16 PM Ken Burton via Gmclist <
> > If you go electric, carry a spare (or 3) on board. Been driving GM since
> 1969 and never had a mechanical pump fail. I have dropped many tanks on
> > EFI cars however.
>
> I will second that. The last mechanical fuel pump I replaced was on a
> 1954 Ford for a friend when I was 18. That was almost 60 years ago. I have
> replaced more electric ones that I care to remember on various brands and
> types of vehicles.
>
> If I were going to go only electric on a GMC, I would install two pumps
> (one on each tank) so I had a ready standby spare. Then you could simply
> switch tanks (and pumps) and continue on your way.
>
> I did once tow a GMC friend a few miles back to Bean Station that had a
> mechanical fuel pump failure. We went to the auto parts store on a Sunday
> and
> got a replacement pump the he installed.
>
> --
> Ken Burton - N9KB
> 76 Palm Beach
> Hebron, Indiana
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
The pumps are designed differently depending what their intended us is. As Hupy points out, the in tank ones rely on the fuel for cooling and lube.
Keeping the tanks full on my later Mopar minivans has at least doubled the pump life. My current coach has a high pressure pump mounted in the frame,
powered by the FI. The return is set for 48PSI at the injection system. I propose to duplicate the setup in the pictures with the differences needed
for higher pressure pumps. I can mount the final filter after the tee, and use a pair of preliminary filters on each tank feed. Cap the valve and
mount a relay and check how the current pump is powered ... I've a sneaking suspicion it isn't safetied to the degree I'd like, I'll ask the
installer.
--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
Keeping the tanks full on my later Mopar minivans has at least doubled the pump life. My current coach has a high pressure pump mounted in the frame,
powered by the FI. The return is set for 48PSI at the injection system. I propose to duplicate the setup in the pictures with the differences needed
for higher pressure pumps. I can mount the final filter after the tee, and use a pair of preliminary filters on each tank feed. Cap the valve and
mount a relay and check how the current pump is powered ... I've a sneaking suspicion it isn't safetied to the degree I'd like, I'll ask the
installer.
--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
