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Old 09-22-2018, 12:47 PM   #16
AC_Schnitzel
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I think I might have found the source of the leak...

This is the supply line to the fuel rail — previous owner had it replaced w/ this at some point.

Haven’t started the car yet to confirm, but take a look:





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Old 09-22-2018, 01:48 PM   #17
D.Martijn
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Is it the "Not for fuel injection systems" that you are talking about?
When you google, 30R7 which is printed on the hose, it says it's rated at 50psi (3,5 bar).
The fuel system on the E30 only works at about 3bar so those lines should be good.
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Old 09-22-2018, 02:46 PM   #18
AC_Schnitzel
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Quote:
Originally Posted by D.Martijn View Post
Is it the "Not for fuel injection systems" that you are talking about?
When you google, 30R7 which is printed on the hose, it says it's rated at 50psi (3,5 bar).
The fuel system on the E30 only works at about 3bar so those lines should be good.


Ah yes. I thought I was onto something...

Anyhow, 5/16 EFI line at local auto parts store is more expensive by the meter than on FCP.


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WTB: Z3 1.9 lever, plastic bumpers, 19# injectors, Anthracite Cloth Sport Seats


Current
88 325 super eta
00 528i/5 (daily)
02 530iA sport

Former
04 525iA sport
87 325is
91 325i
97 528i
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Old 09-23-2018, 01:46 AM   #19
D.Martijn
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Quote:
Originally Posted by AC_Schnitzel View Post
Ah yes. I thought I was onto something...

Anyhow, 5/16 EFI line at local auto parts store is more expensive by the meter than on FCP.


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You can always replace them so you are 100% sure it's not the lines.
I replaced my fuel lines yesterday and I paid 27€ for 3 meters of line at my local parts store. Beats having to wait for it to arrive though.
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Old 09-23-2018, 12:28 PM   #20
AC_Schnitzel
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Quote:
Originally Posted by D.Martijn View Post
You can always replace them so you are 100% sure it's not the lines.

I replaced my fuel lines yesterday and I paid 27€ for 3 meters of line at my local parts store. Beats having to wait for it to arrive though.


So I found the source of the leak — it is in fact at the junction of the supply hose here:



It might be that whoever installed the line used the wrong clamp...

Gonna change out the lines anyway.

Thanks everyone for your help!
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WTB: Z3 1.9 lever, plastic bumpers, 19# injectors, Anthracite Cloth Sport Seats


Current
88 325 super eta
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02 530iA sport

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87 325is
91 325i
97 528i
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