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#1 |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,132
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Inlet On Fabricated Gas Tank Question
My short steel floor has that one rear bed 'runner' that interferes w/the filler inlet when swapping in a Blazer gas tank. I notched the runner & it clears the tank just fine, but the inlet exits directly into the area dedicated for the bolt that secures the bed.
I've decided to seal the original inlet & relocate a new one on the back side of the tank. There will be a 90° turn @ the floor where I plan to have the gas cap mounted & another @ the tank. Other than those bends, it's a straight shot. While I'm relocating the inlet, I thought it would be a good opportunity to increase the size too. So that brings me to the question @ hand: What size/diameter is the 'common' fuel hose that's used to connect the gas cap 'hard lines' to the tank? I remember reading somewhere that some tanks have a hard to find fuel hose size so I'm trying to avoid that & weld in a common (easy to obtain) hose size. My 74 has a small hose & it's a pain in the arse when filling the truck @ the gas station..... so I'm hoping to go larger. Thanks in advance.
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#2 |
The Original HotRod KnifeMaker
![]() Join Date: Jan 2007
Location: Tenino, Washington
Posts: 811
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Re: Inlet On Fabricated Gas Tank Question
I went to a marine supply shop and bought the Coast Guard approved rubber fuel hose along with the same sized filler tube and cap], then a muffler shop for the filler ends. Think the hose is 1.75 inch.
The steel exhaust tubing was a tiny bit undersized, so I cut lengths from a bicycle inner tube and put that over the steel- then had a good, snug fit that clamped up solid and hasn't leaked a drop. Please post a few pics when you get it finished ![]()
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Dave 69 GMC SWB 2WD 454 Turbo 400 |
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#3 |
*************
![]() Join Date: Apr 2005
Location: Pensacola, FL
Posts: 17,865
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Re: Inlet On Fabricated Gas Tank Question
I would check with NAPA or another local parts store and see what they carry. I think 2" is pretty common. Plus, you can always make the steel neck match the bigger hose by taking it to the exhaust shop to get it expanded. That's what I did on my 69 Suburban.
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Rob - https://www.instagram.com/hart_rod_c10 As Iron Sharpens Iron, So One Man Sharpens Another. Proverbs 27:17 FOR SALE: DBW pedal bracket - http://67-72chevytrucks.com/vboard/s...d.php?t=651123 FOR SALE: Hood Brackets http://67-72chevytrucks.com/vboard/s...d.php?t=679945 1987 Silverado SWB - 34.5K original miles http://67-72chevytrucks.com/vboard/s...d.php?t=801834 1969 SuperBurb - http://67-72chevytrucks.com/vboard/s...d.php?t=200387 1968 Farm truck - http://67-72chevytrucks.com/vboard/s...d.php?t=358692 1968 SWB - http://67-72chevytrucks.com/vboard/s...d.php?t=551258 1948 Chevy - http://67-72chevytrucks.com/vboard/s...=122164&page=3 Last edited by Hart_Rod; 06-21-2007 at 08:00 AM. |
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#4 | |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,132
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Re: Inlet On Fabricated Gas Tank Question
Quote:
As long as I can find the right size hose, I should be good to go. My inlet piping will be made from scrap stainless from my work & 2" 90° elbows + a small section of straight pipe would be easy to find.
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#5 |
Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: Inlet On Fabricated Gas Tank Question
i'd think 2 90degree turns and a short connector will make it very difficult to fill with the gas nozzele shutting off every few seconds
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71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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#6 | |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,132
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Re: Inlet On Fabricated Gas Tank Question
Quote:
I was going to mount the filler neck in the bad (against the inner bed wall) so the pipe has to turn toward the tank @ some point. The straight section from the 90 (after the filler neck) would prob be about 8~10" & then it has to 'turn' again to discharge into the tank. The bend @ the tank may not need to be a 90.... but it's prob going to need something.
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. Last edited by SCOTI; 06-21-2007 at 09:48 AM. |
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#7 |
Senior Member
Join Date: Jun 2003
Location: Westminster, CO
Posts: 3,071
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Re: Inlet On Fabricated Gas Tank Question
Most of the deck style fillers are for 1 1/2" filler hose. My FuelCellGuy tank has a 2" inlet. I am going from 1 1/2" deck fill to a 90 degree 1 1/2" filler hose joined to 2" filler hose and into the tank. In order to make the 90 degree "No problem" while filling... I am going to build a small box the will sit in the rear of the bed and will elevate the deck fill maybe 6"...so that the 90 is just under the bed and a straight shot from ther to the tank. My 1 1/2" pop up filler deck mount arrives today, so I will be doing this immediately. Gates that makes 1 1/2" and 2" 90 degree and 45 degree filler hose pieces. I am using one of there 90's.
http://www.midwayautosupply.com/sear...++++++++++++++
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Alex 1971 Lil' Red 350 SBC 700R4 Last edited by ChevyDude; 06-21-2007 at 10:10 AM. |
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#8 |
A guy with a truck
Join Date: Sep 2005
Location: Germany, for now
Posts: 5,921
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Re: Inlet On Fabricated Gas Tank Question
I think a sweeping bend will be better than a 90* bend. Let gravity do the work of getting the fuel to the tank. Just think fluid dynamics when designing it. There is a LOT of fuel coming from modern high-flow pumps.
You can move the Blazer tank back a few inches to avoid that crossmember too, but it's a step in the right direction getting rid of that 1 1/4" neck... If you're raising the bed floor, it should be a moot point. -Chris
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-Chris Instagram _elgringoloco_ '70 Short-Wide How to: Ruin a perfectly good C10 ‘70 Blazer ConversionHow To: Ruin a Perfectly Good 4wd '72 Highlander How To: Ruin a Perfectly Good K/5 (SOLD) '72 Blazer 2WD How to: Ruin a perfectly good Blazer (SOLD) '05 Yukon Daily Driven (not so stock) Yukon (SOLD) ‘07 Yukon Denali (daily) Members met list: SCOTI, darkhorse970, 67cheby, 67cheby'sGirl, klmore, porterbuilt, n2billet, Fastrucken, classicchev, Col Clank, GSFMECH, HuggerCST, Spray-Bomb, BACKYARD88, 5150, fine69, fatbass, smbrouss70, 65StreetCruiser, GAc10boy |
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#9 | |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,132
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Re: Inlet On Fabricated Gas Tank Question
Quote:
I'll look @ it again.... maybe I can get away w/a bend under the bed-floor (possibly reduced to a 45°) & try to align the remaining pipe for a straight shot to the 'corner' of the top of the tank (since I can put the tank inlet wherever it will fit & works best).
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. Last edited by SCOTI; 06-21-2007 at 10:38 AM. |
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#10 | |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,132
|
Re: Inlet On Fabricated Gas Tank Question
Quote:
__________________
67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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