[TheRealDirtyHarry]

So as stated in my restoration thread, found out my fuel pump (in the rear) is bad. So does anyone have the bosche OE part number for the fuel pump to cross reference? Or at least know the GPH rating for a US spec Spica GTV pump? I’m sure I can get a decent aftermarket one quickly but don’t want to over or under pressurize the Spica system.

 

[AlfaTasteless]

Here's the specs for Centerline's Bosch 3 port pump replacement. It's a FP-200 pump. It's supposed to do more than 200lph (about 53gph) at a max of 5-8 bar (72-116psi). I got a similar spec one on amazon for about $40.

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www.bosch-motorsport.com

 

[DPeterson3]

I’ve posted a couple of threads about replacing the original 3-port (NOT a Bosch product) pump with a Bosch 044 (or Chinese generic) and Holley regulator. The Bosch-pump-only approach generally requires a reduction of flow through the Spica, possibly increasing temps. The 044+regulator gives precise pressure control and equal or more flow via the regulator.

 

[bellagt]

Worth reading... Pretty much says that the Bosch L-Jet fuel pump (69414?) used in later Post-SPICA Alfa’s is a suitable and common replacement.

https://www.wesingram.com/SPICA_Fuel_Supply_Diagnostic_Guide_Nov_2004.pdf

Excerpt from above:
The main supply pumps were primarily manufactured by Bosch, but also SPICA and AEG (very rare). The old AEG pumps were dry motors with a separate geared pump section. Bosch and SPICA pumps operate "wet," meaning that the entire interior including the electric motor section of the pump is bathed in fuel. Since there is no air in the pump, there is no danger of igniting the fuel. Although you can sometimes find rebuilt original supply pumps, the later Bosch supply pumps from the L-Jetronic systems work fine and are a good and readily available substitute. They are also new, as opposed to the rebuilt replacements. If you are replacing a 3-port pump, you will have to make minor modifications, by capping off the supply pump return line or removing it altogether (leave the main return line alone). The older pumps originally equipping SPICA injected Alfas look different from the L-Jetronic models.

Best fuel pump for SPICA?

My fuel pump is on its last legs, and from what I hear these are parts that need replacing periodically. I'm making my way thru a full rebuild and starting to think about what I'll use to replace it. IAP has a bosch pump for $200 Alfa Romeo, Fiat and Lancia Fuel Pumps Centerline sells a...

www.alfabb.com

Fuel pump from Bosch inj Spider compatible w/Spica GTV?

Does anyone know if the bosch made fuel pumps for 1982+ bosch injected spiders are compatible with spica injected gtv's? I can handle mounting and fabricating a bracket, but I'm wondering about inlet/outlet config and diameters as well as flow rate. Thanks.

www.alfabb.com

 

[DPeterson3]

Worth reading... Pretty much says that the Bosch L-Jet fuel pump (69414?) used in later Post-SPICA Alfa’s is a suitable and common replacement.

https://www.wesingram.com/SPICA_Fuel_Supply_Diagnostic_Guide_Nov_2004.pdf

Excerpt from above:
The main supply pumps were primarily manufactured by Bosch, but also SPICA and AEG (very rare). The old AEG pumps were dry motors with a separate geared pump section. Bosch and SPICA pumps operate "wet," meaning that the entire interior including the electric motor section of the pump is bathed in fuel. Since there is no air in the pump, there is no danger of igniting the fuel. Although you can sometimes find rebuilt original supply pumps, the later Bosch supply pumps from the L-Jetronic systems work fine and are a good and readily available substitute. They are also new, as opposed to the rebuilt replacements. If you are replacing a 3-port pump, you will have to make minor modifications, by capping off the supply pump return line or removing it altogether (leave the main return line alone). The older pumps originally equipping SPICA injected Alfas look different from the L-Jetronic models.

Best fuel pump for SPICA?

My fuel pump is on its last legs, and from what I hear these are parts that need replacing periodically. I'm making my way thru a full rebuild and starting to think about what I'll use to replace it. IAP has a bosch pump for $200 Alfa Romeo, Fiat and Lancia Fuel Pumps Centerline sells a...

www.alfabb.com

Fuel pump from Bosch inj Spider compatible w/Spica GTV?

Does anyone know if the bosch made fuel pumps for 1982+ bosch injected spiders are compatible with spica injected gtv's? I can handle mounting and fabricating a bracket, but I'm wondering about inlet/outlet config and diameters as well as flow rate. Thanks.

www.alfabb.com

This above post is specifically what I advise avoiding.

An L-Jet two port pump will make the engine run. I am concerned about the long-term health.

To get an L-Jet pump to make the prescribed pressure, one must reduce the size of the return orifice. This reduces the quantity of flow through the Spica injection pump, and thus the cooling.

We might assume Alfa intended to have the original volume flow rate.

If you don’t mind a possible reduction in the life of your Spica, the L-Jet pump will make your car run.

 

[Xenios]

I was at a similar point 6 months ago. Burned my brain reading all the technical info on fuel pumps. Early 1750s (69) were 3 port, one was return as the fuel regulation was done by the spica pump. Later ones were two port. Also the fuel system is a way to cool thr spica pump by design. Hence the relatively high flow rate in the system.
Mine was converted to a 2.0 spica circa 1977 so I managed to track down the pump centerline gives. As I am in Europe it didn't make sense to buy a Europe made pump all the way from the US (plus shipping and taxes).
This is the manufacturer product page. Turns out it was used in plenty of Alfas through the 80s and 90s and plenty other brands.

Fuel pump - PN 5501

Suitable to: 76034, 0580463005, 145059, 4421193

www.ptzfuelpump.com

Sent from my GM1913 using Tapatalk

 

[GTA ALFA]

So as stated in my restoration thread, found out my fuel pump (in the rear) is bad. So does anyone have the bosche OE part number for the fuel pump to cross reference? Or at least know the GPH rating for a US spec Spica GTV pump? I’m sure I can get a decent aftermarket one quickly but don’t want to over or under pressurize the Spica system.

The fuel pump isn't bad, it just needs to be serviced from sitting for so long. I have done this many times. Works everytime.

 

[AlfaTasteless]

(NOT a Bosch product)

My apologies, that was meant to read as "it's Centerline's Bosch replacement for the 3 port".

 

[TheRealDirtyHarry]

The fuel pump isn't bad, it just needs to be serviced from sitting for so long. I have done this many times. Works everytime.

I apologize, sadly I’m too young to remember the thought of rebuilding a pump before replacing it lol. Just disassemble and clean or is there a particular rebuild pack for these pumps? It’s a 73 2000 Spica.

 

[ossodiseppia]

If your pump is a three port, they have not been available for a very long time. Porsche guys will pay handsomely, even for a non functioning one. If you decide to take it apart, be forewarned, there is an O ring in there that you might need to replace.


These folks offer and R&R service.

Fuel Injection Corp

fuelinjectioncorp.com

 

[AlfaTasteless]

After trying to rebuild 2 of those 3 port pumps to no avail I just decided to junk mine. Neither one worked, no matter how many O-Rings I replaced or parts I swapped between the 2. It might just be easier to convert to an inline in my opinion.

 

[bellagt]

This above post is specifically what I advise avoiding.

An L-Jet two port pump will make the engine run. I am concerned about the long-term health.

To get an L-Jet pump to make the prescribed pressure, one must reduce the size of the return orifice. This reduces the quantity of flow through the Spica injection pump, and thus the cooling.

We might assume Alfa intended to have the original volume flow rate.

If you don’t mind a possible reduction in the life of your Spica, the L-Jet pump will make your car run.

Ingram doesn't seem to have any issue with the Bosch L-Jet pump per Appendix 1 in his write-up.