| [GMCnet] TBI - Dual Fuel Pump [message #181244] |
Wed, 22 August 2012 07:35  |
Dave
Messages: 32
Registered: March 2004
Karma: 3
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I have been using the Howell TBI system for many years. This past
summer I started having fuel pump problems. Replacing the fuel pump
with my spare seems to have solved the problem. But I am thinking
that it would be nice to have two fuel pumps, one for each tank, so I
can just throw the switch if I think I am having fuel pump problems.
Do these fuel pumps have internal check valves? If so I can just 'T'
the outlets together and not have to worry about back-flow through the pump.
If the pumps do not have internal check valves, what would be a good
check valve (suitable for use in a fuel line).
What is the make and part number for the pumps Howell is using on the
new TBI systems? I have the older style pump (Airtex E8228). I tried
to order a new spare and they are no longer avalable.
Dave
Ann Arbor, MI.
73 Sequoia (26'/455/EbH/RwI/ThH/HEI/TBI/160°/3.42/100A/Q55G)
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| Re: [GMCnet] TBI - Dual Fuel Pump [message #181246 is a reply to message #181244] |
Wed, 22 August 2012 07:43  |
GeorgeRud
Messages: 1380
Registered: February 2007
Location: Chicago, IL
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Summit racing has several fuel check valves listed on their website. I know that Carter also makes some, but I don't know if they're rated for low or higher pressures. I don't think it should really make a difference, but I can't say for sure.
George Rudawsky
Chicago, IL
75 Palm Beach
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| Re: [GMCnet] TBI - Dual Fuel Pump [message #181249 is a reply to message #181244] |
Wed, 22 August 2012 07:46 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Dave,
I can't believe the E8228 is NLA; neither can Summit:
http://www.summitracing.com/parts/ATX-E8228/
And eBay shows 7.
But that's not what I'm using now. I was always a bit uneasy with the high
output pressure of the E8228 so when I found a great deal on a low pressure
pump (18 psi, IIRC) sepecifically for use with GM TBI, I installed it. I'd
expected to need to change the regulator setting, but didn't.
I'll try to find the number in my files, but you should be able to find one
by checking 89-90 GM vehicles.
Ken H.
On Wed, Aug 22, 2012 at 8:35 AM, Dave wrote:
> I have been using the Howell TBI system for many years. This past
> summer I started having fuel pump problems. Replacing the fuel pump
> with my spare seems to have solved the problem. But I am thinking
> that it would be nice to have two fuel pumps, one for each tank, so I
> can just throw the switch if I think I am having fuel pump problems.
>
> Do these fuel pumps have internal check valves? If so I can just 'T'
> the outlets together and not have to worry about back-flow through the
> pump.
>
> If the pumps do not have internal check valves, what would be a good
> check valve (suitable for use in a fuel line).
>
> What is the make and part number for the pumps Howell is using on the
> new TBI systems? I have the older style pump (Airtex E8228). I tried
> to order a new spare and they are no longer avalable.
>
>
> Dave
> Ann Arbor, MI.
> 73 Sequoia (26'/455/EbH/RwI/ThH/HEI/TBI/160°/3.42/100A/Q55G)
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: [GMCnet] TBI - Dual Fuel Pump [message #181258 is a reply to message #181249] |
Wed, 22 August 2012 08:25 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Ooops, I forgot to give you this:
http://www.mcmaster.com/#standard-check-valves/=iyjn19
IIRC, this is the specific one I use:
7768K63 $13.12
I installed them regardless of whether the current pumps require them
just in case a future replacement might unexpectedly.
Ken H.
> On Wed, Aug 22, 2012 at 8:35 AM, Dave wrote:
>> Do these fuel pumps have internal check valves? If so I can just 'T'
>> the outlets together and not have to worry about back-flow through the
>> pump.
>>
>> If the pumps do not have internal check valves, what would be a good
>> check valve (suitable for use in a fuel line).
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: [GMCnet] TBI - Dual Fuel Pump [message #181266 is a reply to message #181263] |
Wed, 22 August 2012 09:36 |
 |
WD0AFQ
Messages: 7111
Registered: November 2004
Location: Dexter, Mo.
Karma: 207
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| emerystora wrote on Wed, 22 August 2012 09:15 |
Hi Dave
When I put in my in-tank fuel pumps I removed my Airtex E8228. I also have a like new spare. When I buy a spare part I always install it to test it and them I remove it and put it back in its box to carry as a spare. So one of my two pumps is new but used for a few minutes. I believe I paid about $120 when I bought it.
If you or anyone else could use them, make me an offer for either one or both.
Most of the fuel pumps have an internal check valve so the outputs can be teed together without any external check valve. That is what I did with my in-tank pumps. I tested the pumps check valve to 90 psi and it held fine.
Emery Stora
On Aug 22, 2012, at 6:35 AM, Dave <DaveM@Mich.Com> wrote:
> I have been using the Howell TBI system for many years. This past
> summer I started having fuel pump problems. Replacing the fuel pump
> with my spare seems to have solved the problem. But I am thinking
> that it would be nice to have two fuel pumps, one for each tank, so I
> can just throw the switch if I think I am having fuel pump problems.
>
> Do these fuel pumps have internal check valves? If so I can just 'T'
> the outlets together and not have to worry about back-flow through the pump.
>
> If the pumps do not have internal check valves, what would be a good
> check valve (suitable for use in a fuel line).
>
> What is the make and part number for the pumps Howell is using on the
> new TBI systems? I have the older style pump (Airtex E8228). I tried
> to order a new spare and they are no longer avalable.
>
>
> Dave
> Ann Arbor, MI.
> 73 Sequoia (26'/455/EbH/RwI/ThH/HEI/TBI/160°/3.42/100A/Q55G)
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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Emery, want to give a hands on presentation at Amana on installing the in tank pumps? I got two and will volunteer my coach.
Dan
3 In Stainless Exhaust Headers
One Ton All Discs/Reaction Arm
355 FD/Quad Bag/Alum Radiator Manny Tran/New eng.
Holley EFI/10 Tire Air Monitoring System
Solarized Coach/Upgraded Windows
Satelite TV/On Demand Hot Water/3Way Refer
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| Re: [GMCnet] TBI - Dual Fuel Pump [message #181293 is a reply to message #181244] |
Wed, 22 August 2012 13:46 |
KB
Messages: 1262
Registered: September 2009
Karma: 0
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Senior Member |
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> But that's not what I'm using now. I was always a bit uneasy with the high
> output pressure of the E8228 so when I found a great deal on a low pressure
> pump (18 psi, IIRC) sepecifically for use with GM TBI, I installed it. I'd
> expected to need to change the regulator setting, but didn't.
I was also a little paranoid about the E8228, so went with a Carter P5001
instead. It's specifically for TBI so not as high pressure.
JWID
Karen
1973 23'
1975 26'
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Karen
1975 26'
San Jose, CA
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