Attention: Have 2 pages to see today

Author Topic: Fuel Tank Elbow  (Read 379 times)

June 12, 2015, 05:00:59 PM
Read 379 times

CTsalt12

  • Information Offline
  • Posts: 413
Fuel Tank Elbow
« on: June 12, 2015, 05:00:59 PM »
I have a bit of a unique need here, and I'm hoping some of you with a lot more experience can help me.

Previous owner installed a poly tank that was too high for the berth below the deck, at least without elbows for the fill and vent lines.  This creates issues with venting etc. 

I need elbows for both; the fuel fill is 1.5 inch and the elbow is 1 I believe.

What kind of elbow should I look for that can connect to the poly neck of the tank, and to the fuel line/vent line? 
Jimbo
1989 175 Osprey

June 12, 2015, 06:09:54 PM
Reply #1

CLM65

  • Information Offline
  • Posts: 1394
Re: Fuel Tank Elbow
« Reply #1 on: June 12, 2015, 06:09:54 PM »
Do you have any pics?  I'm having a hard time visualizing how/where the elbows will be installed.  Keep in mind that the vent line should have a continual rise from the tank to the vent so that it doesn't trap liquid.  Having a low spot (trap) in the fill line will likely also cause trouble, and cause the fuel to back up when you are filling the tank.  And vents are typically 5/8" I believe.
Craig

2002 205 Osprey, 200 HP Yamaha OX66


1967 22-2 Flatback (Rebuild in progress)

June 15, 2015, 02:11:36 PM
Reply #2

CTsalt12

  • Information Offline
  • Posts: 413
Re: Fuel Tank Elbow
« Reply #2 on: June 15, 2015, 02:11:36 PM »


Sure, so here's my tank setup.  Taken a few years ago when I had to pull the console.  The vent is the smaller line, probably 5/8 like you mentioned.  It has the hose on it in the picture, but you can see the fuel fill neck which is exposed, it is identical to that. 

I need an elbow that can clamp onto the poly vent neck, and be clamped onto the vent hose on the other end.  Whether inside or outside it doesn't matter.  Not sure if anyone makes this, I haven't had any luck searching.  Any other creative ideas on how to get a nice smooth bend in the hose would be great. 
Jimbo
1989 175 Osprey

June 15, 2015, 10:43:16 PM
Reply #3

CLM65

  • Information Offline
  • Posts: 1394
Re: Fuel Tank Elbow
« Reply #3 on: June 15, 2015, 10:43:16 PM »
Ah, so your nozzles are vertical, and there isn't much clearance above the tank.  That's a tough one.  I'm afraid I have nothing to offer here.  Sorry.
Craig

2002 205 Osprey, 200 HP Yamaha OX66


1967 22-2 Flatback (Rebuild in progress)

June 16, 2015, 05:25:51 AM
Reply #4

RickK

  • *****
  • Information Offline
  • Administrator
  • Posts: 11283
Re: Fuel Tank Elbow
« Reply #4 on: June 16, 2015, 05:25:51 AM »
If you can't solve the elbow dilemma NOR can you afford to replace the tank AND the fill is located underneath your console you might be able to bring the fill and vent up into your console and mount it like the old above deck, inside the console fuel tanks.  I had this type in my 170.
You could cut a neat hole in the tank cover for both, bring them up and cut holes in your console to mount the hardware.
If the fill is located behind the console, then forget this idea.
Rick
1971 "170" with 115 Johnson (It's usable but not 100% finished)

1992 230 Explorer with 250 Yamaha

June 16, 2015, 09:01:35 AM
Reply #5

dirtwheelsfl

  • Information Offline
  • Master Rebuilder
  • Posts: 808
Re: Fuel Tank Elbow
« Reply #5 on: June 16, 2015, 09:01:35 AM »
How much clearance do you have??   Could youcome off and up just enough with a piece of hose to slide a 90 elbow in then run flat off of that?     

Might have to fill slower but...

June 23, 2015, 09:17:31 AM
Reply #6

Shine

  • Information Offline
  • Posts: 276
    • http://www.gulfstreamcoposites.com
Re: Fuel Tank Elbow
« Reply #6 on: June 23, 2015, 09:17:31 AM »
the vertical fill is tough.  You could use a piece of fill hose attached to a 90 degree aluminum tube, but by the time you do all of that your looking at around 8" of added clearance.

I have used bent aluminum tubing (bought online from a auto exhaust component supplier)  to make turns in the fill under the deck.  A single 90 degree should not make for any trouble in filling.  You get more problem when the run to the tank from the fill is not dropping all the way (you get air pockets)

 


SimplePortal 2.3.5 © 2008-2012, SimplePortal