 SS Fuel Line Replacement |
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| jks1981 |
 Oct 23 2012, 07:54 AM
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#1
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Newbie  Group: Members Posts: 5 Joined: 16-April 12 From: London, Ontario Member No.: 14,389 Region Association: Canada  |
Hello,
I recently bought my first 914, and within a couple of weeks, gas was pouring out the bottom of it. The previous owner had rubber fuel hose running from the gas tank to the fuel pump in the engine compartment (carbed car). This line had cracked where it exited the firewall under the enginer compartment. So I am going to replace the tunnel line with stainless, keeping in mind this car is now carbed, does it matter if I use 9.5 or 8mm? Also, where the fuel line exits under the engine compartment, is it best to just connect up some hose to run into the compartment, or is there a better way? It seems the lines are pretty exposed there. Thanks! James |
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| JFJ914 |
Oct 23 2012, 08:20 AM
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#2
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Senior Member Group: Benefactors Posts: 813 Joined: 13-June 03 From: Alpharetta, GA Member No.: 814 Region Association: South East States 
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Look in the Member Vendors forum, Rotary'914 and Racer Chris, both sell complete SS fuel line kits.
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| ConeDodger |
Oct 23 2012, 08:46 AM
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#3
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Apex killer! Group: Members Posts: 24,028 Joined: 31-December 04 From: Tahoe Area Member No.: 3,380 Region Association: Northern California
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It doesn't matter. Replace all the hose with modern ethanol resistant hose too. I used EFI hose even when I had carbs. As I am sure you know, you do not want that hose to burst... A CarBQue is no fun to watch... Especially if it is yours. (IMG:style_emoticons/default/sad.gif)
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| ChrisFoley |
Oct 23 2012, 10:59 AM
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#4
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I am Tangerine Racing Group: Members Posts: 7,986 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None
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QUOTE(jks1981 @ Oct 23 2012, 08:54 AM)  ... does it matter if I use 9.5 or 8mm? ... I base the decision of which size to use on the pump location. In back gets 9.5mm, up front gets 8mm. Either will flow more than enough fuel until you get into big displacement engines. We use our engine compartment lines to go through the engine shelf and decrease the amount of rubber hose used. |
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| bperry |
Oct 23 2012, 01:33 PM
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#5
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Lurker Group: Members Posts: 477 Joined: 16-February 04 From: Dallas, Tx Member No.: 1,661 |
CFR SS lines
Rotary14 SS lines DIY SS lines The DIY lines are metal all the way through the engine shelf. --- bill |
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| worn |
Oct 23 2012, 02:15 PM
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#6
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Winner of the Utah Twisted Joint Award Group: Members Posts: 3,470 Joined: 3-June 11 From: Madison, WI Member No.: 13,152 Region Association: Upper MidWest
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QUOTE(jks1981 @ Oct 23 2012, 05:54 AM) Hello, I recently bought my first 914, and within a couple of weeks, gas was pouring out the bottom of it. The previous owner had rubber fuel hose running from the gas tank to the fuel pump in the engine compartment (carbed car). This line had cracked where it exited the firewall under the enginer compartment. So I am going to replace the tunnel line with stainless, keeping in mind this car is now carbed, does it matter if I use 9.5 or 8mm? Also, where the fuel line exits under the engine compartment, is it best to just connect up some hose to run into the compartment, or is there a better way? It seems the lines are pretty exposed there. Thanks! James There are quality vendors out there who will do well by you. If you are more DIY inclined JEGs and Summit sell SS high pressure hose (in english sizes). You can get silver bearing brazing rod and add whatever fitting you want by pushing the fitting on and the brazing with map gas or acetylene. Of course then it is permanently on the car. |
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| struckn |
Oct 23 2012, 05:28 PM
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#7
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Senior Member Group: Members Posts: 1,069 Joined: 9-November 11 From: South Central York Pennsyvania Member No.: 13,764 Region Association: MidAtlantic Region |
QUOTE(jks1981 @ Oct 23 2012, 05:54 AM) Hello, I recently bought my first 914, and within a couple of weeks, gas was pouring out the bottom of it. The previous owner had rubber fuel hose running from the gas tank to the fuel pump in the engine compartment (carbed car). This line had cracked where it exited the firewall under the enginer compartment. So I am going to replace the tunnel line with stainless, keeping in mind this car is now carbed, does it matter if I use 9.5 or 8mm? Also, where the fuel line exits under the engine compartment, is it best to just connect up some hose to run into the compartment, or is there a better way? It seems the lines are pretty exposed there. Thanks! James This will open a can of worms but, with a Carb set up you only need to run one line from the Tank to the engine, you don't need the return line with a carb set up. Also you don't need 20-30 lbs of pressure with Carbs, mine works fine with around 3 lbs and you're less likely to blow a hose connection off. I had mine installed at the shop that did my engine rebuild while the engine was out and he ran stainless threw the tunnel and fire wall bushing into the engine compartment, then to ethanol proof hose to the carb. I don't think the diameter of the steel line we make much difference with your set up. (IMG:style_emoticons/default/popcorn[1].gif) (IMG:style_emoticons/default/bye1.gif) |
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| scotty b |
Oct 23 2012, 05:36 PM
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#8
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rust free you say ? Group: Members Posts: 16,375 Joined: 7-January 05 From: richmond, Va. Member No.: 3,419 Region Association: None |
I just today replaced a customers lines with a CFR line. ( carbs ) Took all of maybe 2 hours total to drain tank, remove tank, pull old lines, and install new line ( single for carbs ) Highly recommended (IMG:style_emoticons/default/beerchug.gif)
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| jks1981 |
Oct 23 2012, 09:24 PM
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#9
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Newbie Group: Members Posts: 5 Joined: 16-April 12 From: London, Ontario Member No.: 14,389 Region Association: Canada |
Thanks for all the replies!
I think I will go with 9.5mm stainless through the tunnel, then connect up to the pump in the engine compartment with new fuel hose. And hopefully no more dumping gas on the side of the road! |
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| maddin |
Jun 23 2015, 05:58 PM
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#10
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Member Group: Members Posts: 168 Joined: 22-December 13 From: Australia Member No.: 16,789 Region Association: Australia and New Zealand |
Ok,don't want to start a new post.
We're about to replace the fuel lines through the tunnel and I got confused with the inside/outside diameters for the lines. It's for a 3.0l conversion with CIS. Do I have to get 8.0mm or 9.5mm tubes and does that measurement refer to inside or outside diameter since the thickness of the tube can be different. Thanks :-) |
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| ChrisFoley |
Jun 24 2015, 06:24 AM
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#11
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I am Tangerine Racing Group: Members Posts: 7,986 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None
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Those are OD measurements.
It would be better to use 9.5mm for the supply side. |
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| maddin |
Jun 24 2015, 02:39 PM
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#12
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Member Group: Members Posts: 168 Joined: 22-December 13 From: Australia Member No.: 16,789 Region Association: Australia and New Zealand |
QUOTE(Racer Chris @ Jun 24 2015, 10:24 PM) Those are OD measurements. It would be better to use 9.5mm for the supply side. Thank you! (IMG:style_emoticons/default/smile.gif) |
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