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> Stainless Steel Fuel Lines, How to install them in your 914
ClayPerrine
post Nov 28 2004, 09:13 AM
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Here's the link........


Stainless steel fuel line installation.

I will be updating it as I find time to get back in the garage and finish the job! (IMG:style_emoticons/default/smile.gif)
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Jeroen
post Nov 28 2004, 11:17 AM
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Nice write up and good pics!
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ThinAir
post Nov 28 2004, 11:18 AM
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(IMG:style_emoticons/default/pray.gif) Cool!
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drew365
post Nov 28 2004, 11:51 AM
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New fuel lines are moving to the top of my priority list. Thanks for the write up but the pics didn't load for me.
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restore2seater
post Nov 28 2004, 12:27 PM
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"Thanks for the write up but the pics didn't load for me. "

Same here.
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a9146luvr
post Nov 28 2004, 12:55 PM
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Excellent post, awaiting the finish with required tools and supplies in hand, thanx.
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Carrera916
post Nov 28 2004, 02:43 PM
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That looks real good and my only regret was that I had the whole fuel line replaced with proper plastic replacement about 7 years ago. The car hasn't been on the road since then as I'm still not finished with the restoration!

My next car WILL have the SS lines!

However, I need to ask you about that fuel pump location, I understand you're not done but are you planning to secure that to the (dashboard) bulkhead as noted on the picture? Would the humming pump noise transfer into the compartment?

The 75-76 models has their pump mounted on the inside chamber of the "front trunk" bulkhead (not the "dashboard" bulkhead as your picture indicated) to eliminate the vapor lock issues and I wondered the factory also put in that area to eliminate the possible noise if it had been mounted "dashboard" bulkhead? I dunno as I'm deaf as hell so I wouldn't care but for you others? I do know I could hear (and feel thru the floorplan) when the old electric fuel pumps on all 4 cam Spyders were kicked on, boy, they're loud (and sweeet!).

so fill me in more on where you're going with the pump location....

j
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Jeroen
post Nov 28 2004, 02:52 PM
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I've converted Clay's page into a club-page
You can find it in the tech articles under the "914 info" link at the top of the page
or by clicking here
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ClayPerrine
post Nov 29 2004, 07:09 AM
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QUOTE(Carrera916 @ Nov 28 2004, 02:43 PM)

However, I need to ask you about that fuel pump location, I understand you're not done but are you planning to secure that to the (dashboard) bulkhead as noted on the picture? Would the humming pump noise transfer into the compartment?

The 75-76 models has their pump mounted on the inside chamber of the "front trunk" bulkhead (not the "dashboard" bulkhead as your picture indicated) to eliminate the vapor lock issues and I wondered the factory also put in that area to eliminate the possible noise if it had been mounted "dashboard" bulkhead? I dunno as I'm deaf as hell so I wouldn't care but for you others? I do know I could hear (and feel thru the floorplan) when the old electric fuel pumps on all 4 cam Spyders were kicked on, boy, they're loud (and sweeet!).

so fill me in more on where you're going with the pump location....

j

The pump in the picture is in the correct location. It just needs mounting. If you look at a 914 with the fuel tank out, the factory front sway bar runs under it. The pump mounts to the bulkhead between the tank well and the front trunk. This is the same location as a 75/76 car, just no factory hole. The pump is isolated from vibration by using the rubber mounts. I did my wife's 74 this way, and you can't hear the pump inside the car at all.


Use the fuel pump bracket from a 73 911. It kicks up on one end. Just bend it flat and attach it to the bulkhead.
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elwood-914
post Nov 29 2004, 10:53 AM
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Where do you get 16ft pieces of S.S. tubing? And Grommets? Thanks
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ClayPerrine
post Nov 29 2004, 10:57 AM
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The gromets came from my FLAPS. In a help package. The SS lines came from the local steel supplier in Ft. Worth. I don't know the name because a 914 racer friend of mine got them for me in exchange for some parts he needed for his 914 race car.
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andys
post Nov 29 2004, 01:09 PM
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Clay,

Thanks for the nice write-up. Can you explain the reason for threading the ends of the tubing? Is it to grasp and retain the hose?

Thanks,

Andy
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Mueller
post Nov 29 2004, 01:28 PM
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You can get the tubing (stainless, coated regular steel and aluminum....all designed for fuel) from Summit Racing.

Summit Racing

I recommend getting a catalog from them, very well laid out and decent pricing.

QUOTE
 SUM-220214  Tubing, Stainless Steel, Natural, 1/4 in. x 20 ft., Each
Today  $28.99    
  SUM-220236  Tubing, Stainless Steel, Natural, 3/16 in. x 20 ft., Each
Today  $27.69    
  SUM-220238  Tubing, Stainless Steel, Natural, 3/8 in. x 20 ft., Each
Today  $32.99    
  SUM-220256  Tubing, Stainless Steel, Natural, 5/16 in. x 20 ft., Each
Today  $29.99  
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ClayPerrine
post Nov 29 2004, 02:30 PM
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QUOTE(andys @ Nov 29 2004, 01:09 PM)
Clay,

Thanks for the nice write-up. Can you explain the reason for threading the ends of the tubing? Is it to grasp and retain the hose?

Thanks,

Andy

A 10mm die will cut very shallow threads into a 7/16" tube. An 11mm die will cut very shallow threads into a 3/8" tube. They will act as grooves to retain the hose better. As I said in the article, it will keep it from slipping off under pressure.
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Dr Evil
post Nov 29 2004, 02:39 PM
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I did the one off of the bird board tech section which uses SS brake lines. Sourcing the fittings was a pain at first, but I found an easy vendor (car quest) and all in all it cost me like $35. Looks great, too. I'll post pictures in a few weeks when I am done with school.
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Britain Smith
post Nov 29 2004, 03:06 PM
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What size lines do ya recommend running? I was think about 3/8" supply line and 5/16" return. What is the stock ID for the fuel lines?

On the fittings, if one didn't want to run any rubber lines what kind of connectors can be used to go from the stainless lines to AN fittings? I was think that swagelok fittings would work, does anyone have any experience doing this?

-Britain
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Qarl
post Nov 29 2004, 03:20 PM
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Can someone educate me on bending lines? How do you get all of those nice bends to contour with the car?

I have a little handheld tubing bender and I can't get it to bend worth a darn!
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ClayPerrine
post Nov 29 2004, 03:27 PM
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I never explored the idea of using Braided SS lines on my car, so I don't know what it would take to make the connection.

AS for the tubing bender, it just takes some patience. You can't make the bend in just one motion. You bend a little then reset the paddle on the bender, and bend again until you get the correct angle.
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Mueller
post Nov 29 2004, 03:30 PM
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not that I like the idea too much for fuel lines...but you can fill the tube with sand for holding up the shape of the walls...sorta a cheap-mans mandrel bender...
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Steve
post Nov 29 2004, 10:23 PM
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I also did the one off the bird site for my 3.2 conversion.
I also mounted the 911 fuel pump in the stock 75 location.
I was able to source all the parts at Kragen auto parts and pep boys.
Its just standard brake lines and connectors.

Clays looks pretty awesome.
I like how the metal line goes all the way up to the motor.
On my car I installed 90 degree fittings on the ends of the brake lines where they exited the firewall and then used fuel injection line up to the motor.
It was easy to do and the only bending I had to do was where the lines went under the gas tank.
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