FUEL PUMP REPLACEMENT, any afforable options? Options

[chazt74914]

So I had replaced all the old frayed fuel lines under my '74 2.0 since they were starting to leak. Now that I have finished, (bitch of a job under that RH side) the electric fuel pump has started seeping fuel from the electrical connect terminal area.
This original style pump looks to be a sealed unit and the only replacement option I have found is a rebuilt from Auto Atlanta @ $400 exchange. There are other elect pumps out there for less but are designated for carb units. I still have the D-jet system in place and working well so I am not interested in converting to carbs.
Anybody out there know of a less-expensive option?

[MikeM]

They often come up for sale here. I would try Bruce Stone.
He's the go to guy for used parts!!
Mike

[JawjaPorsche]

NAPA has a Bosch Fuel Pump that will fit:

Part Number BSH 69133

$114

[chazt74914]

They often come up for sale here. I would try Bruce Stone.
He's the go to guy for used parts!!
Mike

ok -thanks. I will keep that in mind, but I am trying to avoid a used one because I have been burned before.

[chazt74914]

NAPA has a Bosch Fuel Pump that will fit:

Part Number BSH 69133

$114

thanks for the tip - I will check with NAPA.

[87m491]

You might want to check Rock Auto as well. <$70

http://www.rockauto.com/en/parts/bosch,69133,fuel+pump,6256
http://www.rockauto.com/en/parts/bosch,69133,fuel+pump,6256

NAPA has a Bosch Fuel Pump that will fit:

Part Number BSH 69133

$114

thanks for the tip - I will check with NAPA.

[drewvw]

I did mine last year for a 1.7 with the following based on some archive research here:

+ Bosch Fuel Pump Part Number. BSH 69133
8mm OD on the inlet, 12mm OD on the outlet

+ Napa Fuel Filter 3274
10 mm inlet, 13mm outlet

+ Piece of Rubber. Reuse the bracket from the old pump, you'll find that it's too big. I was able to get mine to work by wrapping the pump with a piece of rubber.


Can be purchased at NAPA or online. Worked well. There are a few different ways to do the filter but the pump was inexpensive and is a 2 port.

[chazt74914]

NAPA has a Bosch Fuel Pump that will fit:

Part Number BSH 69133

$114

I see that is a 2-port pump. What do I do with the hose from the 3rd port (damper) on the old pump?

[PlantMan]

Airtek is another options which you can get from Amazon for about $70.
Use a 'T' to connect the (2) return lines together and take them back to the tank.
Did this on my 74 recently and it runs great. There are a few links here that will show pics of the hook-up.

[JawjaPorsche]

NAPA has a Bosch Fuel Pump that will fit:

Part Number BSH 69133

$114

I see that is a 2-port pump. What do I do with the hose from the 3rd port (damper) on the old pump?

I did not know 74's had a three prong pump! Learned something!

The fuel return lines has a Y connector. Just discard it! You will not need it. Just return back to the fuel tank.

I made change from 3 to 2 four years ago. Also moved pump to firewall too.

Much cooler there plus easier to change the fuel filter too. You will need NAPA 2374.

[PlantMan]

Me too on the fire wall.
Easier to access.

[ClayPerrine]

Airtex E8445 or equivalent. Same pressure and volume as the stock pump.

Available at any FLAPS.

[napasteve]

I copied what JawjaPorsche did. Works great.

[rgalla9146]

[quote name='JawjaPorsche' date='Sep 7 2016, 01:24 PM' post='2395115']
[quote name='chazt74914' post='2394718' date='Sep 6 2016, 02:31 PM']
[quote name='JawjaPorsche' post='2394666' date='Sep 6 2016, 11:23 AM']
NAPA has a Bosch Fuel Pump that will fit:

Part Number BSH 69133

$114
[/quote]
I see that is a 2-port pump. What do I do with the hose from the 3rd port (damper) on the old pump?
[/quote]

I did not know 74's had a three prong pump! Learned something!

The fuel return lines has a Y connector. Just discard it! You will not need it. Just return back to the fuel tank.

I made change from 3 to 2 four years ago. Also moved pump to firewall too.

Much cooler there plus easier to change the fuel filter too. You will need NAPA 2374.

I'm curious about the plumbing that you've done.
Could you diagram it from supply through each connection and back to the return ?
Some of it is not visible in the pictures.
Looks simple and a great update.
Great job.
Thank you
Rory

[boxsterfan]

Airtex E8445 or equivalent. Same pressure and volume as the stock pump.

Available at any FLAPS.

The AirTex unit seems like the way to go, but has 8mm inlet and outlet.

It would be great to find a pump that has 9.5mm inlet and outlet (plus a fuel filter with the same). Just trying to avoid the number of adapters it takes....always feels like building Frankenstein.

[JawjaPorsche]

[quote name='rgalla9146' date='Sep 7 2016, 02:47 PM' post='2395144']
[quote name='JawjaPorsche' date='Sep 7 2016, 01:24 PM' post='2395115']
[quote name='chazt74914' post='2394718' date='Sep 6 2016, 02:31 PM']
[quote name='JawjaPorsche' post='2394666' date='Sep 6 2016, 11:23 AM']
NAPA has a Bosch Fuel Pump that will fit:

Part Number BSH 69133

$114
[/quote]
I see that is a 2-port pump. What do I do with the hose from the 3rd port (damper) on the old pump?
[/quote]

I did not know 74's had a three prong pump! Learned something!

The fuel return lines has a Y connector. Just discard it! You will not need it. Just return back to the fuel tank.

I made change from 3 to 2 four years ago. Also moved pump to firewall too.

Much cooler there plus easier to change the fuel filter too. You will need NAPA 2374.

I'm curious about the plumbing that you've done.
Could you diagram it from supply through each connection and back to the return ?
Some of it is not visible in the pictures.
Looks simple and a great update.
Great job.
Thank you
Rory
[/quote]


The bottom fuel line is the feed line. Just made a big loop between firewall and air shroud to fuel filter to pump to fuel rails. I fabricated a fuel filter holder out of thin sheet metal and attached with sheet metal screws. The two prong pump is smaller so I used a spare coil bracket holder. I drilled into the firewall and backpad sheet metal and used long bolts with large fender washers inside. You need to remove your backpad which is not hard. I hope this helps.

[Tom_T]

Hey Folks, while those engine bay firewall installs look very well done ....

I'm going to weigh in here against the engine firewall position, based on both my personal experience of 100,000+ miles & 8 years of DD Southwest/SoCal driving of my 73 914-2.0 post relocation often in 100-120 degree desert summer heat, & upon the expertise of my mechanic of 41+ years on 914s, who was factory trained on 914s before they came out, & was Circle Porsche's (Long Beach CA) 914 specialist, before he started his own shop in `72 - not to mention the Porsche factory TSB or Service Bulletin which came out on the vapor lock problem in 74 or 75.

Moving it to the engine bay firewall is just not going to get the FP out of the engine bay heat, which causes the vapor lock & the main reason to move them at all, which was why Porsche came up with the 70-74 MY service bulletin to put it behind the steering rack on the front bulkhead below the fuel tank.

It's really no harder to do it there - cuz you just undo 4 bolts on the steering rack cover & have probably easier access to the position where the factory recco'ed, especially with the repro Porsche Service Bulletin Parts Kit (fuel filter is in stock location too). There is absolutely no need to pull the fuel tank nor any other shenanigans.

IMHO - IF you have vapor lock & hot start problems, then do the move up front as per the SB.

Here are some crappy pix of my FP at the lower front trunk-to-cabin firewall, just to the right of the center tunnel portal where the fuel lines daylight, & is added where the original longer rubber fuel lines would go over to the fuel tank outlet (yes, it's a 3-port furl pump for 70-74 MYs).

Looking from passenger side at the 3-line connections (just to left of steering rack boot) -----v


Looking from driver's side - silver circle is back end of FP (at right center, partially obscured by floor pan/wall, to right of steering rack gear) ----V


(IMG:style_emoticons/default/beerchug.gif)
Tom
///////

[JawjaPorsche]

I would interested to see if anyone has a vapor lock issue after locating their fuel pump to the firewall.

Where it was originally was a terrible place to place the fuel pump. It got very hot there because it was next to the heat exchanger! Plus no air movement!

I drove my 914 from Georgia to California in Summer of 1975. Outside Phoenix, it vapor locked because it was 110 degrees. State Patrol stopped by and said it let it cool and when it starts to run the heater to pull heat out of the area. So driving in 110 degree heat with heater on! But no vapor lock!

Moved mine twenty years ago to firewall and my vapor lock issues disappeared. I bought my 914 new in 1973.

I remember calling my local Porsche dealership and spoke to service manager and he said to move it to the FIREWALL! I guess he did not see the service bulletin. Of course, that was twenty years ago even back then!

[Tom_T]

I would interested to see if anyone has a vapor lock issue after locating their fuel pump to the firewall.

Moved mine twenty years ago to firewall and my vapor lock issues disappeared.

I remember calling my local Porsche dealership and spoke to service manager and he said to move it to the FIREWALL!

It's probably more of an issue in the very hot states where 90-100+ temps is more common in summer. GA may not get that hot often enough. Nor does Germany, which explains the OE pump position.

Also, the vapor lock condition only sets in after a a mid to long drive in hot temps, then stopping for gas/food/etc., & then try to restart it.

I waited to do mine for 2 years, not having had problems most of the time in coastal SoCal, but after I got stuck for a couple of hours to cool it down in "beautiful" Blythe at their Denny's after running out to the Colorado River in August to water ski with buddies in 122 degree weather, I bit the bullet & had my guy Hans do it with mine.

As soon as I called him on the issue, he said he knew exactly what the problem was, & would take care of it when I got back home! Back then I lived just a block from his shop! (IMG:style_emoticons/default/biggrin.gif)

However, that said - IMHO folks are better off just doing it where Porsche said to & completely remove any chance of V.L. - as they did with the move up front for the 75-76 out of the factory.

Although, your 20 year old install looks pristine!

Mine has 100K+ miles & 8 years of driving crud, then sitting in my garage since May 1985 - so not nearly as purdy as yours! (IMG:style_emoticons/default/biggrin.gif)

(IMG:style_emoticons/default/beerchug.gif)
Tom
///////

[87m491]

"8mm OD inlet, 12mm OD outlet"? on mine the inlet is bigger and outlet is smaller..

I did mine last year for a 1.7 with the following based on some archive research here:

+ Bosch Fuel Pump Part Number. BSH 69133
8mm OD on the inlet, 12mm OD on the outlet

+ Napa Fuel Filter 3274
10 mm inlet, 13mm outlet

+ Piece of Rubber. Reuse the bracket from the old pump, you'll find that it's too big. I was able to get mine to work by wrapping the pump with a piece of rubber.


Can be purchased at NAPA or online. Worked well. There are a few different ways to do the filter but the pump was inexpensive and is a 2 port.