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04-13-2018, 04:05 PM
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#1 |
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Registered User
Join Date: Apr 2018
Location: GP Texas
Posts: 16
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Fuel lines
Would it be safe to run all rubber hoses that are rated 245 psi instead of hard lines? I currently have tbi hard lines.
Thanks |
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04-15-2018, 11:22 AM
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#2 |
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Registered User
Join Date: Mar 2010
Location: thomastown mississippi
Posts: 1,261
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Re: Fuel lines
You gonna run Ethanol fuel in your truck?
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04-15-2018, 08:19 PM
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#3 |
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Registered User
Join Date: Apr 2018
Location: GP Texas
Posts: 16
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Re: Fuel lines
E-85 tune
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04-15-2018, 09:16 PM
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#4 |
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Registered User
Join Date: Jan 2014
Location: Swaledale, IA
Posts: 485
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Re: Fuel lines
I have the same question- thinking about dual tanks and LS swap - I know about the 65 psi selector valve thats out there, but what about the rest of the fuel system - only thing I can think of is running rubber lines everywhere.
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04-16-2018, 12:37 AM
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#5 |
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Moderator
 
Join Date: Oct 2008
Location: Wentworth, NH
Posts: 4,977
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Re: Fuel lines
If you intend to run E85 on a flex fuel LS then you should run Nylon and steel fuel lines. Rubber just isn't going to last and AN hoses aren't necessary anymore because there's Nylon line repair tooling and parts available now to Joe Q Public.
Dorman makes reasonable nylon fuel line and push-loc end fittings. You can find it on Amazon. Tooling for Nylon lines is becoming more available. Again even on Amazon. Dorman 800-301, the compact KTI 75305, or the larger KTI 75300 to insert the female push lock sockets into your nylon fuel line. Folks have made some home brew tooling but the Dorman or KTI tools are less than $100 each. The push lock steel tube ends can be formed using a Mastercool hydraulic flare tool with the GM fuel line dies to make the push lock tube ends. The Mastercool 72485 Universal Hydraulic Flare Tool set has push lock GM fuel line and transmission line forming dies along with Metric ISO bubble and 45° Metric and SAE double flares in a nice blow molded HDPE case. This is a very high quality professional grade tool with a pretty comprehensive die set that is well worth the $320 price tag. I own one and I would not like to go back to the cheap screw-thread tooling for brake, transmission, and fuel lines. This Universal set doesn't seem to have the British 37° double flares so if you are working on antique British cars... Rolls Royce, Morgan, Austin Healey, Vauxhall, MG, or Bentley you may need to buy some additional dies.  You'll also need Whitworth (British Standard) thread tools for those odd Brit bolts...
__________________
1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...
And please let us know if and how your repairs were successful. Last edited by hatzie; 04-16-2018 at 12:54 AM. |
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04-16-2018, 04:06 AM
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#6 | |
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Registered User
Join Date: Apr 2018
Location: GP Texas
Posts: 16
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Re: Fuel lines
Quote:
I purchased the wiring harness from a member here “gmachinz”, top notch oe looking harness. The harness will allow dual walbro intank pumps. Pollack Selector valve 87r10 donor tanks or new from rockauto Two walbro 255 intank pumps or your preference I will see what part numbers i used for sending units Full deplete in cabin switch if yours does not |
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