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Posted by: exsurfer Jun 15 2019, 08:10 AM

What are the factory fuel lines sizes on a 914-6, I can't find fuel section on PET 5

Had the orig. fuel pump serviced what to refresh the orig. lines.

Thanks

Posted by: Mark Henry Jun 15 2019, 08:26 AM

The weber barbs are 8mm, 5/16" fuel hose works.
Not sure on the pump, I have a conversion.

Posted by: Mark Henry Jun 15 2019, 08:35 AM

QUOTE(exsurfer @ Jun 15 2019, 10:10 AM)

Had the orig. fuel pump serviced what to refresh the orig. lines.

I recommend against using the cloth braided hose, what's available is total

I use FI hose rated SAE J30R9 or higher and FI clamps, better safe than sorry.

Posted by: gereed75 Jun 15 2019, 11:29 AM

If you are talking tank to engine bay lines through tunnel, the SS lines provided by tangerine work fine, not sure of size. Not anything unusual.

Agree with Mark n hose type

Posted by: exsurfer Jun 15 2019, 11:43 AM

Thanks!

I'm looking for factory replacement as the car is bone stock w 80K miles. Been in
my garage for over ten years. I want the original lines replaced. There is no need for
high pressure F.I. lines. Using a stock pump that was recently service. It is my understanding the supply line from the tank is larger than the output line and the return line. I can't find 914-6 fuel diagrams anywere. This car is not on PET 5 that I can find.

Thanks

Posted by: porschetub Jun 15 2019, 02:48 PM

QUOTE(exsurfer @ Jun 16 2019, 05:43 AM)

Thanks!

I'm looking for factory replacement as the car is bone stock w 80K miles. Been in
my garage for over ten years. I want the original lines replaced. There is no need for
high pressure F.I. lines. Using a stock pump that was recently service. It is my understanding the supply line from the tank is larger than the output line and the return line. I can't find 914-6 fuel diagrams anywere. This car is not on PET 5 that I can find.

Thanks

F.I. hose is more durable and all I will use,basic hose seems to degrade faster with modern fuel from personal experience,the price difference means nothing from a safety point of view,you have a valuble car besides.
I bought quality fabric covered hose but won't fit it after reading issues with it,do use the F.I.clamps as mentioned ,worries me to see many people don't

.

Posted by: johnhora Jun 15 2019, 08:48 PM

914-6 Fuel Pump
(S) Suction ....fuel tank to fuel pump OD 10mm
(D) Discharge..fuel pump to carbs OD 8mm
® Return......fuel pump to fuel tank OD 8mm

Original Plastic Lines... small line (return) 8mm....large line (suction) 10mm

As mentioned the SS lines provided by tangerine are excellent.
I used them to replace the aging plastic in my original 914-6...perfect fit.

I purchased fuel hose here:
https://www.belmetric.com/metric-hoses-c-14/
you can get OEM type fuel braided or smooth that are Multi-Fuel Hose-Ethanol Approved

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