Fuel pump options, using the Bosch 69133 pump Options

[arne]

So yesterday I confirmed my suspicion that the entire fuel delivery system in my '73 2.0 needs replaced. (See Yellow storage unit find)

No surprise there, I expected most of this. My budget/plan has included stainless lines and associated parts from the start. The fuel pump itself was a bit unexpected, but only a little.

I've begun my planning, getting ready to order parts. Will probably just order the entire FI line package from Tangerine, lines, hoses, clamps and all.

But I do have some questions about the replacement pump itself that I haven't been able to pin down searching other threads here. So here goes:

1. My neighbor works at a local Bosch jobber, so I get great prices. I'm planning to convert to a later style 2 port pump. Should I use a late 914 pump, or is there some other pump that I should consider? I saw some references in other threads about a Volvo pump, but no details. Any fitment or part number info on alternatives would be welcome.
2. Relocating - The current pump is still in the stock location, and since the car was sold here in Western Oregon new, has not had vapor lock issues. But I plan to relocate it anyway. Given that vapor lock is not a big concern here in this mild climate, where is the easiest place to put the new pump? I'm not keen on moving is all the way up front if that isn't necessary as I don't like to string wiring that far if a different spot would serve me as well.
3. If I relocate to the firewall as a simpler option, can someone give me (as a total 914 noob) a better description as to where on the firewall people typically put it?
4. Lastly, if I mount the new pump on the firewall, I'm guessing I need to order the line kit for stock location, not for relocate to the front? (I suppose I can call Tangerine before I order to clear that up.)

Have I missed anything regarding this total replacement?

[arne]

A brief update. I have the Bosch pump and the line kit from Tangerine Racing. All looks good, with one exception. The inlet side of the Bosch 69133 pump is larger than what others must have. The 10mm (3/8") hose in the kit is a VERY tight stretch on the metal nipple.

This causes a couple of other minor issues. I'm guessing that the stock pump (and presumably many others) have both inlet and outlet nipples of 8mm (5/16"). To connect this all up, the line kit from Chris includes a 10mm-to-8mm adapter, and a fuel filter (Wix 33002) that has 5/16" nipples on both ends. So if the pump inlet was 8mm, it would flow:

10mm tunnel line > 10mm hose > adapter > 8mm hose > filter > 8mm hose > pump inlet

That doesn't work with the 10mm inlet on the 69133 pump. The simple fix is a different filter with 3/8" on both ends, and eliminate the adapter. One option is the Wix 33003, identical to the one in the kit except for the nipple size of 3/8". With that filter, flow is:

10mm tunnel line > 10mm hose > filter > 10mm hose > pump inlet

Simpler, and fewer connections for leaks.

Also, the larger clamps provided for the 10mm hose don't quite open enough to go over the hose after I've forced/stretched it over the pump inlet nipple. I had to use the next size larger to fit. Luckily, I had some nice German FI hose clamps saved from one of my BMW projects in the past, did not have to use a worm gear.

[ChrisFoley]

A brief update. I have the Bosch pump and the line kit from Tangerine Racing. All looks good, with one exception. The inlet side of the Bosch 69133 pump is larger than what others must have. The 10mm (3/8") hose in the kit is a VERY tight stretch on the metal nipple.

This causes a couple of other minor issues. I'm guessing that the stock pump (and presumably many others) have both inlet and outlet nipples of 8mm (5/16"). To connect this all up, the line kit from Chris includes a 10mm-to-8mm adapter, and a fuel filter (Wix 33002) that has 5/16" nipples on both ends. So if the pump inlet was 8mm, it would flow:

10mm tunnel line > 10mm hose > adapter > 8mm hose > filter > 8mm hose > pump inlet

That doesn't work with the 10mm inlet on the 69133 pump. The simple fix is a different filter with 3/8" on both ends, and eliminate the adapter. One option is the Wix 33003, identical to the one in the kit except for the nipple size of 3/8". With that filter, flow is:

10mm tunnel line > 10mm hose > filter > 10mm hose > pump inlet

Simpler, and fewer connections for leaks.

Also, the larger clamps provided for the 10mm hose don't quite open enough to go over the hose after I've forced/stretched it over the pump inlet nipple. I had to use the next size larger to fit. Luckily, I had some nice German FI hose clamps saved from one of my BMW projects in the past, did not have to use a worm gear.

According to my records, you ordered my kit for a stock rear mounted pump.
The Bosch pump you have is for a late model 914 with stock front mounted pump.
The filter I supplied in the kit is incompatible with the 69033 pump. For that you need Wix filter #33274 and you need a special hose made for the larger 12mm beaded ends of the pump and filter.

Also, the supplied hose and tunnel line are 9.5mm (3/8")