Fuel Tank / line question |
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Fuel Tank / line question |
tod914 |
Nov 29 2008, 09:55 PM
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#1
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Advanced Member Group: Members Posts: 3,755 Joined: 19-January 03 From: Lincoln Park, NJ Member No.: 170 |
Been browsing a bunch of previous posts, couldn't find what I was looking for.
Car is a 74 2.0. The fuel pump was relocated to the front. I'm in the process of replaceing all the line under the gas tank and on the pump. Don't like the stuff that they used. All the other lines I replaced under and in the engine bay including the step hose, and the 7x13 german hp braided line. So, I have the 7x13 high pressure line, but what is the other size line that is required ? All I seen in posts are 3/8 ths. What is the metric size I would need. I havent pulled the tank, trying to do it from under the car. Is the feed and return lines/nozzles on the tank itself the same or 2 different sizes? Also taking Cpts suggestion with the metal bmw filters. Other question, The step hose that is now in place in the rear fender well is going to a filter, and then to the engine bay line. ( car has 2 filters in it now, 1 before the pump, and the later). With metal filters, is that acceptable? I'm under the impression it's not a good idea to use the plastic one back there. Thanks again Tod |
ericread |
Nov 30 2008, 12:19 AM
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#2
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The Viper Blue 914 Group: Members Posts: 2,177 Joined: 7-December 07 From: Irvine, CA (The OC) Member No.: 8,432 Region Association: Southern California |
7mm and 9mm fuel lines under the fuel tank. Parts "N 020 359 1" and "99918003050". Both are available at Auto Atlanta and Pelican Parts.
Eric Read |
tod914 |
Nov 30 2008, 03:20 AM
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#3
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Advanced Member Group: Members Posts: 3,755 Joined: 19-January 03 From: Lincoln Park, NJ Member No.: 170 |
great thanks eric.
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davesprinkle |
Nov 30 2008, 07:34 PM
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#4
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Senior Member Group: Members Posts: 720 Joined: 13-October 04 From: Berkeley, CA Member No.: 2,943 Region Association: None |
My understanding is that very few, if any, fuel filters are designed to run on the pressure side of the pump. You don't need two filters anyway. Just put one on the inlet and don't run the risk of a blown filter and fuel fire.
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tod914 |
Nov 30 2008, 11:51 PM
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#5
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Advanced Member Group: Members Posts: 3,755 Joined: 19-January 03 From: Lincoln Park, NJ Member No.: 170 |
The problem without the 2nd filter in place, I'm pretty certian the step hose will not reach the engine bay plastic line. So not sure what options I have with out it. I suppose I could use a small piece of 5/16" brake line to juntion the lines. Any other solutions?
Thanks |
Dave_Darling |
Dec 1 2008, 12:44 AM
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#6
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914 Idiot Group: Members Posts: 15,048 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
If the hose won't fit without the filter in there, get a longer piece of hose. Much better than putting a problem into the line just so it reaches.
--DD |
tod914 |
Dec 1 2008, 05:33 AM
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#7
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Advanced Member Group: Members Posts: 3,755 Joined: 19-January 03 From: Lincoln Park, NJ Member No.: 170 |
Dave do you guys have long length step hose? thats the only way I can see doing as you suggested.
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davesprinkle |
Dec 1 2008, 12:18 PM
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#8
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Senior Member Group: Members Posts: 720 Joined: 13-October 04 From: Berkeley, CA Member No.: 2,943 Region Association: None |
Tod, I feel your pain on this one. The fuel line diameter mis-match is a huge source of frustration when doing the pump relocation. I purchased the expensive Porsche stepped diameter adapter, but found, as you did, that it wasn't long enough to work with my pump location. Here is what I did to resolve the issue:
1. First of all, replace both plastic lines with stainless versions from Racer Chris. However, let him know when you place your order that you want BOTH lines to be the smaller diameter. His standard setup matches the OE diameters -- one large, one small. 2. Find a good TIG welder and have him/her weld on a smaller diameter section of tubing (maybe 2" long) to the fuel tank outlet. These two changes effectively solve the large diameter problem -- all the fittings and tubing are now the smaller size. Huge pain in the ass. Good luck with whatever solution you pursue. -dave |
PeeGreen 914 |
Dec 1 2008, 12:25 PM
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#9
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Just when you think you're done...wait, there is more..lol Group: Members Posts: 10,219 Joined: 21-September 06 From: Seattle, WA... actually Everett Member No.: 6,884 Region Association: Pacific Northwest |
My understanding is that very few, if any, fuel filters are designed to run on the pressure side of the pump. You don't need two filters anyway. Just put one on the inlet and don't run the risk of a blown filter and fuel fire. Many modern cars have the filter after the pump (IMG:style_emoticons/default/confused24.gif) |
tod914 |
Dec 1 2008, 12:38 PM
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#10
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Advanced Member Group: Members Posts: 3,755 Joined: 19-January 03 From: Lincoln Park, NJ Member No.: 170 |
I just priced the metal bmw 2002 Tii fuel filters. $54 each. ouch.
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Cap'n Krusty |
Dec 1 2008, 01:02 PM
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#11
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
I'll sell you FOUR of 'em for that price, and pick up the shipping. The Cap'n
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