Using Rad. Hose For Gas Tank Filler Hose

[LC_Hamma]

Problem is trying to find 2" I.D. gas tank hose that has the capabilities of making sharp bends w/o large kinks - already tried the flex hose route. Auto stores have plenty of rad. hose hanging that I can match up to my mocked up hose & I've already fabbed up my filler housing I'm sure both hoses have different rubber properties

 

[Phrog]

I searched and searched for a gasoline-compatible hose that would
make that sharp bend; never found one. I've heard - but have no
personal experience with this - that radiator hose will work for a while
but will eventually break down and leak.

I ended up wrapping my degraded old hose with metal tape - the
kind used to seal heating ducts. That seems to be working.

-Phrog

 

[spotcruiser]

How about forming the bend you want with steel pipe and clamping straight fuel filler hose on both ends?

 

[73fj]

like this?

 

[LC_Hamma]

How about forming the bend you want with steel pipe and clamping straight fuel filler hose on both ends?

I think that's what I'll end up doing. Buy some misc curved pieces of 2" tube & butt weld together. Thanks!

 

[bsevans]

Like this.

 

[KOOTENAY KRUZER]

There are probably differences between gasoline and diesel as far as affecting rad hoses. but I have been using a rad hose on my diesel auxiliary tank for decades with no problems. I don't always have fuel in the tank, but when I do I fill it right to the top of the filler neck so the fuel is sitting in the hose until I need it. Sometimes that fuel sits in there for weeks or months because I end up not needing it on a particular trip.

 

[Twisty]

My 40 had radiator hose on the filler when I bought it. Had to replace the custom tank recently (in cab, under seat style) and the radiator hose was rock hard, and starting to split. It looked as though it was as old as the custom tank, which rusted out, so I'd say you would get years of use out of radiator hose before it caused any problems.

I did however use proper fuel hose for the filler when the new tank went it.

 

[handcannon]

I've heard - but have no
personal experience with this - that radiator hose will work for a while
but will eventually break down and leak.


-Phrog

This is correct. BTDT

The pic that bsevens shows is the best way to go.

 

[zebrabeefj40]

You might also consider cruising the junk yards for a filler hose of suitable shape. Many OEM's use prebent filler hoses you might be able to use a section of.

Nick

 

[1Fine40]

You might also consider cruising the junk yards for a filler hose of suitable shape. Many OEM's use prebent filler hoses you might be able to use a section of.

Nick

I used some out of a late 90's plymouth sedan...that car had almost 2 feet of hose!! It had several bends as well, so I could cut and sleeve with steel tubing where needed and use the rubber for the rest like Bsevans did. I think it cost me $5.00 total plus the stainless steel hose clamps..


Cheers!

 

[Albin]

For my '85 Toyota 4runner aux fuel tank, I used fuel filler hose from Napa plus the appropriate sized exhaust tubing and hose clamps.

Fuel filler hose and rad hose are not the same type rubber although I don't know the specific differences; personally I wouldn't use rad hose when fuel filler hose is pretty available and not ass-raping expensive.

Good luck.

Al

 

[Chupatngy]

If you are only using it as a temporary fix then go for it. It will get you home but considering it is part of your fuel system you should do it right and use the proper hose type. It is better to be safe and have to change you design a little bit than it is to cut corners and risk your safety.