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I have been going over options Gregg has me thinking about how the coupler will sit when done and it all depends on where I make the cut.
The option of cutting and flaring the line and attach a rubber fuel line seems the easiest but concerned about long term durability.
One other area is replacing it with plastic line if I can find the adaptors.
My next step is to pull the lines and see if they can braze it a lot of work just to say no.
My other issue is the intank pump is over $800 I have a under fender pump coming but need the brackets for not only that but the fuel accumulator it’s all butchered.
The previous shop made this wonderful adapter and it follows through the whole car.
Porsche did the "early" fuel pumps a few different ways....
You should do this one of the other ways they did this and eliminate the expensive in-tank pump.
If your tank has 37mm threads (measure the old in tank pump), replace that pump with a factory strainer.
Then use the correct "pusher" pump, in the stock location, below the fuel tank. (911 508 102 00 ~$220)
And the correct "pressure pump", in the wheel well. (930 608 113 00 ~$275) Note: Your current pump, below the fuel tank is likely this pump.....or your engine would be running very lean.
928 International should have the bracket.
Then all you need is a strainer, the correct feed hose, a hose (not cheap rubber hose) from the pusher pump to the pressure pump (we make these), and a hose (again, not cheap rubber) from the pressure pump to the accumulator (we make these, too.)
....Everything for way less than the in-tank pump, especially if your current pressure pump is correct.
Semi-retired, as of Feb 1, 2023.
The days of free technical advice are over.
Free consultations will no longer be available.
Will still be in the shop, isolated and exclusively working on project cars, developmental work and products, engines and transmissions.
Have fun with your 928's people!
I have been going over options Gregg has me thinking about how the coupler will sit when done and it all depends on where I make the cut.
The option of cutting and flaring the line and attach a rubber fuel line seems the easiest but concerned about long term durability.
One other area is replacing it with plastic line if I can find the adaptors.
My next step is to pull the lines and see if they can braze it a lot of work just to say no.
My other issue is the intank pump is over $800 I have a under fender pump coming but need the brackets for not only that but the fuel accumulator it’s all butchered.
The previous shop made this wonderful adapter and it follows through the whole car.
Porsche did the "early" fuel pumps a few different ways....
You should do this one of the other ways they did this and eliminate the expensive in-tank pump.
If your tank has 37mm threads (measure the old in tank pump), replace that pump with a factory strainer.
Then use the correct "pusher" pump, in the stock location, below the fuel tank. (911 508 102 00 ~$220)
And the correct "pressure pump", in the wheel well. (930 608 113 00 ~$275) Note: Your current pump, below the fuel tank, would work, but it has the incorrect feed fitting.)
928 International should have the bracket.
Then all you need is a strainer, the correct feed hose, a hose (not cheap rubber hose) from the pusher pump to the pressure pump (we make these), and a hose (again, not cheap rubber) from the pressure pump to the accumulator (we make these, too.)
....Everything for way less than the in-tank pump, using the correct parts.
Super easy line to work with (same tubing used on the metal brake lines.)
Have a local machinist make you two 10mm straight couplers out of stainless or brass.
Silver solder the new curved piece into place using the machined couplers. (https://www.muggyweld.com/product/ss...solder.....the best, easiest to use silver solder I've ever tried.)
Or just bend up a brand new line and use your existing end fittings.
.
Nice find there. I’ve been saving good CIS main lines off of parts cars…it’s a low percentage that are not damaged.
11-15-2021, 11:57 PM
