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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: johnny on September 23, 2013, 08:27:15 PM

Title: Alternative Fuel Pump ~ original poster wmax351
Post by: johnny on September 23, 2013, 08:27:15 PM
From the list at IBMWR.org, with a few annotations from me (wmax351).

NAPA (Mustang) fuel pump for K11 fuel pump
Date: Wed, 19 Nov 1997 10:08:30 -0500 (EST)
From: BillZ <BilZ@longride.net>
Mine died a sudden death somewhere around 70k (93 K11rs, not that that should make a difference) and I am now the proud owner of a NAPA pump for a 4 cyl Mustang, $80 and doing fine.
Date: Fri, 20 Feb 1998 21:31:47 EST
From: BilZ@longride.net
If you want to add to the fuel pump reference of mine, the NAPA part # is P74095 for the pump I installed. The NAPA pump now has over 30k on it with no problems.
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: johnny on September 24, 2013, 04:57:59 PM
(http://i236.photobucket.com/albums/ff192/owrstrich/MB%20dot%20COM/fp_zps39ec1553.jpg) (http://www.highflowfuel.com/i-8927817-new-intank-efi-fuel-pump-bmw-k1100-k1100rt-k1100lt-1993-2004.html)

j o
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: johnny on September 24, 2013, 05:02:02 PM
(http://i236.photobucket.com/albums/ff192/owrstrich/bosch_zps0041b0df.jpg) (http://www.euromotoelectrics.com/category-s/754.htm)

j o
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: Scott_ on September 24, 2013, 09:01:56 PM
Here's the foam sleeve adapter for those 37mm pumps to run in the 43mm mount.

http://www.euromotoelectrics.com/product-p/fp-231foam.htm (http://www.euromotoelectrics.com/product-p/fp-231foam.htm)

(http://i278.photobucket.com/albums/kk91/electro_handyman/FPAdapter.jpg)
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: Martin on May 10, 2016, 04:25:57 PM
Mate just received 3 VDO fuel pumps Part No A2C 59510945 for a discounted price of $124.00 Au. The pumps are 51mm diameter so will require either a sleeve of shrink wrap or stainless cable ties to make it secure. The electrical connectors do not need modification, and it came with two different filter screens which should be compatible with the K tank. They are available on Ebay but at $75.00 Au with screens $60.00 without screens.
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: F14CRAZY on April 19, 2017, 08:01:59 PM
I haven't needed to replace mine yet but it was mentioned in another thread (regarding BMW dealer prices going up).

Using an automotive aftermarket fuel pump has been mentioned in places like this:

https://www.motobrick.com/index.php?topic=2058.0 (https://www.motobrick.com/index.php?topic=2058.0)

I got curious about local prices so I looked up a '90 Lincoln Continental (3.8L V6, the only engine offered during that period) and found their Carquest brand pump for $63.99

http://shop.advanceautoparts.com/p/carquest-electric-fuel-pump-e2042/3140091-P?navigationPath=L1*14932%7CL2*14986%7CL3*15378 (http://shop.advanceautoparts.com/p/carquest-electric-fuel-pump-e2042/3140091-P?navigationPath=L1*14932%7CL2*14986%7CL3*15378)

NAPA carries one for $59.40, if you trust using NAPA over Advance. Seems they sell Airtex pumps with lifetime warranties.

https://www.napaonline.com/en/p/AFPE2042 (https://www.napaonline.com/en/p/AFPE2042)

In stock at my local store and with a lifetime warranty. The dealer ain't going to give you that. Nice knowing that if you're on the road and need one you can walk into most any auto parts store and pick one up.

I also checked my favorite online parts store, Rockauto.com, also using a '90 Continental:

http://www.rockauto.com/en/catalog/lincoln,1990,continental,3.8l+232cid+v6,1187995,fuel+&+air,fuel+pump,6256 (http://www.rockauto.com/en/catalog/lincoln,1990,continental,3.8l+232cid+v6,1187995,fuel+&+air,fuel+pump,6256)

Offering a wide array of choices, their cheapest was $15.84. That's cheap enough to toss one in your tail cowl just in case.

$38.79 gets you a Carter with a lifetime warranty if you want to pay more for supposed "quality." Hell the TYC for $18.20 has a lifetime warranty too.

$65.79 will get you a Denso.

And to refresh our minds, BMW Motorcycles of Grand Rapids lists a fuel pump for my '87 K75 for $475.46.

http://parts.bmwmcgr.com/a/BMW_1987_K75/_51497_5691969/FUEL-PUMPFUEL-FILTER/16_0809.html (http://parts.bmwmcgr.com/a/BMW_1987_K75/_51497_5691969/FUEL-PUMPFUEL-FILTER/16_0809.html)
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: Elipten on April 19, 2017, 09:42:17 PM
BMWNA and the mother land is charging prices that only the rich owners never worry about so they can support their corporate palaces and benefits.

It us average joes responsibility to find affordable sources or alternatives.  Vote with your money and a single finger salute to them.


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Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: motomann on April 19, 2017, 10:02:07 PM
I haven't needed to replace mine yet but it was mentioned in another thread (regarding BMW dealer prices going up).

Using an automotive aftermarket fuel pump has been mentioned in places like this:

https://www.motobrick.com/index.php?topic=2058.0 (https://www.motobrick.com/index.php?topic=2058.0)

I got curious about local prices so I looked up a '90 Lincoln Continental (3.8L V6, the only engine offered during that period) and found their Carquest brand pump for $63.99

http://shop.advanceautoparts.com/p/carquest-electric-fuel-pump-e2042/3140091-P?navigationPath=L1*14932%7CL2*14986%7CL3*15378 (http://shop.advanceautoparts.com/p/carquest-electric-fuel-pump-e2042/3140091-P?navigationPath=L1*14932%7CL2*14986%7CL3*15378)

NAPA carries one for $59.40, if you trust using NAPA over Advance. Seems they sell Airtex pumps with lifetime warranties.

https://www.napaonline.com/en/p/AFPE2042 (https://www.napaonline.com/en/p/AFPE2042)

In stock at my local store and with a lifetime warranty. The dealer ain't going to give you that. Nice knowing that if you're on the road and need one you can walk into most any auto parts store and pick one up.

I also checked my favorite online parts store, Rockauto.com, also using a '90 Continental:

http://www.rockauto.com/en/catalog/lincoln,1990,continental,3.8l+232cid+v6,1187995,fuel+&+air,fuel+pump,6256 (http://www.rockauto.com/en/catalog/lincoln,1990,continental,3.8l+232cid+v6,1187995,fuel+&+air,fuel+pump,6256)

Offering a wide array of choices, their cheapest was $15.84. That's cheap enough to toss one in your tail cowl just in case.

$38.79 gets you a Carter with a lifetime warranty if you want to pay more for supposed "quality." Hell the TYC for $18.20 has a lifetime warranty too.

$65.79 will get you a Denso.

And to refresh our minds, BMW Motorcycles of Grand Rapids lists a fuel pump for my '87 K75 for $475.46.

http://parts.bmwmcgr.com/a/BMW_1987_K75/_51497_5691969/FUEL-PUMPFUEL-FILTER/16_0809.html (http://parts.bmwmcgr.com/a/BMW_1987_K75/_51497_5691969/FUEL-PUMPFUEL-FILTER/16_0809.html)

Hi, check eBay seller highflowfuel (39801) $69. I installed one in my 96 K1100RS. Slight modification with a hose clamp but fits in existing pump fixture. Comes with a strainer. Installed last year still running fine.



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Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: The Mighty Gryphon on April 20, 2017, 10:06:38 AM
I bought one of those $20 BMW K75 fuel pumps found on eBay and carry it in my tail cowl.  I can't say how well it works, but I operate on the principal that when you carry a spare, that part will never fail.  So far it has worked.

The only issue with the replacement is that it does not use the ring terminals found on the OEM pump, but rather 1/4" spade terminals.  One of these days I have to get ambitious and set up the in tank wiring to expedite the change over.
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: Martin on April 20, 2017, 02:00:22 PM

For Ozinians I'm actually thinking of getting one of these and putting my spare original one in the tail as a just in case. https://www.aliexpress.com/item/for-BMW-K-Ducati-K75-K100-K1100-K1-1983-1997-BOSCH-16121461576-16121460452-0580-463-999/32784411992.html? (https://www.aliexpress.com/item/for-BMW-K-Ducati-K75-K100-K1100-K1-1983-1997-BOSCH-16121461576-16121460452-0580-463-999/32784411992.html?) Won't be happening for a while though as I have other projects going. I am also trying to find reports on these pumps.
Mate got 3 VDO fuel pumps Part No A2C 59510945 for a discounted price of $124.00 Au. The pumps are 51mm diameter so will require either a sleeve of shrink wrap or stainless cable ties to make it secure. The electrical connectors do not need modification, and it came with two different filter screens which should be compatible with the K tank. They are available on Ebay but at $75.00 Au with screens $60.00 without screens.
Regards Martin.
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: Chaos on April 20, 2017, 02:07:43 PM
I saved this vendor in case I ever need one, thanks for the other sources http://www.ebay.com/itm/331387290009?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: ckp on April 25, 2017, 09:39:47 PM
Hi, check eBay seller highflowfuel (39801) $69. I installed one in my 96 K1100RS. Slight modification with a hose clamp but fits in existing pump fixture. Comes with a strainer. Installed last year still running fine.



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Are the electrical connections the same?

Could you elaborate on the "slight modification with hose clamp"?

Would you consider the whine from the fuel pump at an acceptable level? Quiet, slight, loud as hell at a stop light?

Thanks
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: bmwpyro on April 25, 2017, 10:27:32 PM
not sure if i have the same exact pump as motomans but its the same price as the model fuel pump the bike came with .. This one... https://goo.gl/or0DXK (https://goo.gl/or0DXK) or https://ebay.to/2IjQV08 *
electrical are same. not sure what he meant by the hose clamp. mine used all stock.

the only thing creative is the way its wedged/held in the old oem fuel pump can with old fuel hoses cut open.

at idle i would say between quiet and slight. more on the quiet, with fuel low indicator on.

depending on how young your ears are, YMMV.

*goo.gl will phase out their links next year Mar.2019
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: ckp on April 26, 2017, 12:44:07 AM
That's the pump I looked at.
My ears are not the best from spending my life around air tools and loud music. My pump sounds like a car with blower whine or gear drive when I stop, with my full face helmet on. I'm going to replace my fuel filter, since it's cheap enough and never been replaced during my ownership. My gas tank seal leaked water in last year and I think I checked the filter when I had the the tank off, can't remember. I ran water through the pump before I realized why it wouldn't start. Maybe it got noisier due to the intrusion. It doesn't seem likely, but it's certainly possible. My pump has always been noisy. I can live with an acceptable amount of noise, but the way it is now, I cannot see the first owner making it a few days without returning the bike. Of course, it is 2 decades older.
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: motomann on April 26, 2017, 09:46:18 AM
Are the electrical connections the same?

Could you elaborate on the "slight modification with hose clamp"?

Would you consider the whine from the fuel pump at an acceptable level? Quiet, slight, loud as hell at a stop light?

Thanks

I replaced my pump because the usual whine noise had increased. I pulled the pump and discover the strainer at the inlet of the pump had started to disintegrate. The bike is a 96 K1100RS with 90,000km.
I tested the old pump and it was fine but since I had the new pump and strainer I installed it. The new pump was missing a ridge on the casting to retain it in the holder. With the hose clamp on the new pump it was a tight fit. That was 5000km ago...no problems since.


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Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: thecableguy on April 26, 2017, 10:24:17 AM
greetings...

keys to fuel pump health...

1 no corn ethyl
2 keep it above 1/4
3 new gas filter approx 20k
4 marine staybil b4 storage
5 techron after staybil is burned after storage

and most important is ride it hard... dont be a geezer... ride it hard...

j o


And the final key is to have a spare on the shelf.  If you do, yours will never die!


Cheers :beer:


Jim
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: The Mighty Gryphon on April 26, 2017, 10:34:20 AM

And the final key is to have a spare on the shelf.  If you do, yours will never die!


Cheers :beer:


Jim

Beat me to it! 

When traveling, I keep the spare in my iconic 22L top case.
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: ckp on April 26, 2017, 02:24:11 PM
I replaced my pump because the usual whine noise had increased. I pulled the pump and discover the strainer at the inlet of the pump had started to disintegrate. The bike is a 96 K1100RS with 90,000km.
I tested the old pump and it was fine but since I had the new pump and strainer I installed it. The new pump was missing a ridge on the casting to retain it in the holder. With the hose clamp on the new pump it was a tight fit. That was 5000km ago...no problems since.


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Thanks. I will inspect when I change the filter. The 2 previous owners took meticulous care of the bike, so I will dig through the receipts and see if any related items have been addressed. My bike has 43,xxx miles on it.
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: ckp on April 26, 2017, 02:32:25 PM
greetings...

keys to fuel pump health...

1 no corn ethyl
2 keep it above 1/4
3 new gas filter approx 20k
4 marine staybil b4 storage
5 techron after staybil is burned after storage

and most important is ride it hard... dont be a geezer... ride it hard...

j o

Greetings,
I will keep that in mind. I have run below a 1/4 tank more than once. I usually start looking for a gas station after 150-170 miles if I'm not in the boonies. There is ethanol in all the fuel I have ever put in anything I own. The only alternative is race gas. There is no way around it at the gas station.
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: BrickMW on April 26, 2017, 02:55:12 PM
There is no way around it at the gas station.


try this place...
http://pure-gas.org/index.jsp?stateprov=MO
St. LouisGULF93 110 116St. Louis Race Gear314-227-20646807 Hazelwood Ave.
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: Laitch on April 26, 2017, 03:40:14 PM
If you ride your bike plenty and don't leave gasohol to deteriorate in the tank for weeks at a time, 10% ethanol fuel isn't a problem.
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: The Mighty Gryphon on April 26, 2017, 04:50:38 PM
I start running the no corn good stuff in mid to late October, through the winter and up until the 1st of May.  Rest of the year fuel only sits in the tank for a week or less so I don't get too fussy about what I put in there. 

Touring, when a tank only lasts 3 hours, I run whatever they're selling and won't think twice about it.

Around December, when I am pretty sure I'll be getting snowed in for a couple months, I start putting a little Sta-Bil in the tank and running it through for a few minutes.
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: BrickMW on April 26, 2017, 07:38:19 PM
100% gryph.. my first "won't start" adventure came down to 14 day old 87 Oct w/corn juice. Since then I only used non-ethanol unless like you said, I know it will be empty soon.. (long hauls, good weather, etc..)

We are blessed in this area with many options close by for "pure" gas.. I hope it's going to stay that way, and continue to increase in choices.


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Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: ckp on April 29, 2017, 06:04:23 PM
This might be a little late, but I hope I am not hijacking this thread.

I received my fuel filter the other day and proceeded with the removal of the in tank fuel supply.

This HAS to be the easiest fuel pump removal I have ever attempted.
1. Place a soft cloth on the tank.
2. Remove the gas cap assembly and set aside.
3. Loosen the clamp on the short hose of the fuel filter going to the in tank pipe and pull hose off of the pipe.
4. Squeeze one side of the plastic retainer with your thumb and tilt the pump.
5. Squeeze the other side with your finger and the pump is loose.
6. Carefully wrangle the filter and pump (wiring still connected) out of the tank and set on soft cloth. Let the filter drain back into the tank.
7. Remove the 7mm and 8mm nuts for the wiring and place assembly on workplace.

I blew through the filter. It seemed okay, yet wasn't as easy as the brand new one. I thought it could be because it was still wet. I decided to cut it open and have a peak at it. I found it collapsing. I believe the fuel pump was trying to suck the filter through it's tiny hole and thus collapsed the paper element.(Edit: That doesn't make sense, it's on the exit side of the pump). The fuel pump sock looks fine, other than being discolored. I will replace it.

If anybody has replaced the sock with an Autozone or the like part, could you tell me the part number? I have done no searching or researching as of yet. It looks like any other fuel sock I have replaced. I think I have one with the metal "clamp" in the middle instead of on the end. Is this significant?

Thanks
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: Laitch on April 29, 2017, 06:17:52 PM
If anybody has replaced the sock with an Autozone or the like part, could you tell me the part number? I have done no searching or researching as of yet.
This is your chance to start researching, ckp. Go to the Repair Guidance section's Master Index and look in its Alternative Parts section.
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: ckp on May 07, 2017, 09:37:30 PM
I never did find the number for an aftermarket strainer  so I used a spare I had for a 1995 Corvette along with the insulation sleeve GM uses. Replaced those along with a KL145 filter and my pump is quiet now. It had little fuel in it. I drove it around a bit before I filled it up and took it for a good test ride, about 75 miles. It was quiet the whole time. I can actually hear the exhaust at a stop light. I have a spare HFP439B I will put in the tool compartment.
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: Martin on July 22, 2017, 03:05:50 PM

Link to $36.00 Au Chinese fuel pump can be had cheaper, but I went with a manufacturer. A lot of debate on whether these are any good so I decided to do a bit of research and give it a go. Chrisguzzi is running a different Chinese pump see this for differences. http://www.motobrick.com/index.php/topic,10054.msg85798.html#msg85798 (http://www.motobrick.com/index.php/topic,10054.msg85798.html#msg85798)
https://www.aliexpress.com/item/for-BMW-K-Ducati-K75-K100-K1100-K1-1983-1997-BOSCH-16121461576-16121460452-0580-463-999/32784411992.html? (https://www.aliexpress.com/item/for-BMW-K-Ducati-K75-K100-K1100-K1-1983-1997-BOSCH-16121461576-16121460452-0580-463-999/32784411992.html?)
Beijing Global Auto Parts is one of the leading trade companies in mainland China and a member of the Chinese Commercial Vehicle Parts Market Federation, specializing in commercial vehicle and diesel engine parts. We provide export services to many of our clients worldwide including the Middle East, Europe, Africa, and Southeast Asia. Meanwhile, we have established long-term relationships with over 20 leading diesel engine parts manufacturer in mainland China with effective quality insurance system, like Cummins, Caterpillar, Deutz, Perkins, Komatsu, Isuzu, Steyr and Kamaz.
 Our products include nozzles, elements, delivery valves, injectors, pistons, piston rings, cylinder blocks, cylinder heads, crankshafts, camshafts, turbochargers, fuel injection pumps and feed pumps. At the same time, we have good relationship with automotive companies in mainland China and our supplier, including FAW, DFM, CNHTC (Steyr, Howo), Foton (Auman), Shanxi (SX, Steyr), Yuchai, Weichai and DCEC (Cummins). With their assistance, we can provide pure China-made automotive parts and components.OEM pump 180 ml over 5 sec equals 2.16 litres per min.
New pump  325 ml over 5 sec equals 3.9   litres per min.

Regards Martin.
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: woodgeek on February 05, 2018, 03:36:41 PM
I bought one of those $20 BMW K75 fuel pumps found on eBay and carry it in my tail cowl.  I can't say how well it works, but I operate on the principal that when you carry a spare, that part will never fail.  So far it has worked.

The only issue with the replacement is that it does not use the ring terminals found on the OEM pump, but rather 1/4" spade terminals.  One of these days I have to get ambitious and set up the in tank wiring to expedite the change over.
As a new K100 owner, I'm a little unnerved hearing how many spare parts some owners carry with them. Reminds me of my time owning a Jeep CJ5. One time on the highway part of my shift linkage dropped off. Luckily I had my tool set and my Craftsman 5/8" combination wrench substituted perfectly for the missing linkage.


So, what failures have you guys experienced? Do K-bike breakdowns happen a lot?
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: The Mighty Gryphon on February 05, 2018, 04:02:50 PM
At the risk of jinxing myself, I have done 28,000(54k to 82+k) solo cross country miles on my K75RT in the past 4 years.  I have been to 40 of the continental states so far and been in some pretty lonesome spaces.  So far, I have not had any problems beyond a blown heated grip fuse on that bike.

I carry with me easily changed parts that can be hard to come by that can leave me stranded for an extended time some place I would rather not spend a lot of time.  I also have an emergency rescue parts box at home ready to ship to where ever I happen to be stuck.

Yeah, I carry some stuff, but I am riding a 25 year old bike with 80,000 miles on it.  I enjoy riding it far from home, but I can't get off on sitting by the side of the road thinking about renting a U-Haul to get home.  These bikes are about as reliable as anything you can find, but things do fail, and you need to be prepared.
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: woodgeek on February 05, 2018, 04:05:03 PM
At the risk of jinxing myself, I have done 28,000(54k to 82+k) solo cross country miles on my K75RT in the past 4 years.  I have been to 40 of the continental states so far and been in some pretty lonesome spaces.  So far, I have not had any problems beyond a blown heated grip fuse on that bike.

I carry with me easily changed parts that can be hard to come by that can leave me stranded for an extended time some place I would rather not spend a lot of time.  I also have an emergency rescue parts box at home ready to ship to where ever I happen to be stuck.

Yeah, I carry some stuff, but I am riding a 25 year old bike with 80,000 miles on it.  I enjoy riding it far from home, and I can't get off on sitting by the side of the road thinking about renting a U-Haul to get home.  These bikes are about as reliable as anything you can find, but things do fail, and you need to be prepared.
That makes sense. Thanks for the perspective. I travel the same way with our Ford Transit when we're on family vacations. Now I need to decide if I want to pick up a K-bike tool kit on ebay or assemble my own.
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: Motorhobo on March 11, 2019, 04:18:40 PM
I just ordered this as a replacement for the 1990's Ford Escort fuel pump which I've been running for over 60k miles without a problem.

https://www.ebay.com/itm/EFI-In-tank-Fuel-Pump-for-1984-1996-BMW-K75-K75C-K75RT-K75S/263160533853?hash=item3d4597135d:g:ZAQAAOSwvZVZm7Rn&frcectupt=true

This looks like an an exact replacement of that pump and includes the strainer which fits into the recess of the K tank albeit with a little bit of coaxing.

The reason I went with this one instead of the other reasonably priced OEM ones you can find on EME and elsewhere is that the terminals on this pump are different than the OEM and require changing out the terminals on the tank to match. Since I've already done that I didn't want to have to change them again to go back to the OEM style terminals, I wanted this pump but it didn't seem to be available as a Ford Escort or Ford replacement part anymore.

So if you're in a similar situation and are looking for that pump, here it is. If you're looking for a dirt cheap replacement pump this one is that, but it does require crimping on different terminals.





Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: The Mighty Gryphon on March 11, 2019, 07:25:24 PM
Thanks for the link and the reminder that I need to make the modification to the fuel pump wires in the tank. 

The fuel pump I carry has 1/4" flat blade terminals, and as you all know, the OEM pump has ring terminals. 

My solution is to cut the wires at the end, removing the ring terminals and replacing the ring terminals with the female flat blade terminals that will connect to the replacement pump.  Then I'll make a pair of wires with male flat blade terminals that mate with the females on the tank wires.  The other end of the wire will have a ring terminal to attach to the OEM pump.

When and if I ever have to change pumps, all I have to do is unplug the wires going to the OEM pump, install the new one, and push the wires onto the new pump's terminals.  A nice no-tools-required electrical connection because jobs like this can never be too easy when you're at the side of the road and it's getting dark and raining.
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: Motorhobo on March 22, 2019, 12:15:53 PM
That's a good solution Gryph -- btw what did you do to shield that wiring? The spade connectors attach directly to this pump and some of the bare wiring is exposed... I don't know any way around that. Is there any danger having these bare wires exposed to liquid fuel and vapor?
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: Laitch on March 22, 2019, 01:43:56 PM
Is there any danger having these bare wires exposed to liquid fuel and vapor?
Oxygen concentrations within a fuel tank are low enough that ignition by spark is not possible. 

Vapors emitted from the tank can be ignited outside the tank where oxygen concentration is higher so disconnecting the battery before removing fueling components from the tank is good practice. Another good practice is not using the glowing end of a cheroot to see if there's fuel in the tank. Your view will be obstructed by flames. Just smother them with your riding jacket.  :giggles



Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: Motorhobo on March 22, 2019, 02:26:12 PM
Thanks, Laitch -- I didn't know that. Guess I should stop lighting a match to see if there's any fuel left in the tank.
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: daveson on March 22, 2019, 04:03:02 PM
I get a strange feeling too when removing the pump wires with the filler cap opened. It goes against the grain. I touch my boots as well, to reduce the chance of static electricity.
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: Laitch on March 22, 2019, 06:20:17 PM
 :tinhat2
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: daveson on March 22, 2019, 06:44:52 PM
Consider it,  look into it before you dismiss it,  static electrickery really does exist.
Title: Re: Alternative Fuel Pump ~ original poster wmax351
Post by: volador on June 12, 2022, 12:31:04 AM
Fuel Pump 43mm 16141341231 , 16141464730 (Suppressed Noise), 16121464696

SIEMENS/VDO 405 052 003 002Z

Amazon listing #1 (https://www.amazon.com/VDO-002Z-Electric-Fuel-Pump/dp/B00F3ZKI5E/ref=sr_1_3?crid=3HNJ6YA52RBQG&keywords=405052003002Z&qid=1655007572&s=automotive&sprefix=405052003002z%2Cautomotive%2C89&sr=1-3)

Amazon listing #2 (https://www.amazon.com/Audi-Quattro-1990-1998-Fuel-Pump/dp/B07L47CYXR/ref=sr_1_2?crid=3HNJ6YA52RBQG&keywords=405052003002Z&qid=1655007572&s=automotive&sprefix=405052003002z%2Cautomotive%2C89&sr=1-2)