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Fuel Line Hard Line ~VS~ Rubber Hose

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ctltmp
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Fuel Line Hard Line ~VS~ Rubber Hose

Postby ctltmp » Wed Oct 19, 2016 6:50 am

I'm close to getting the tank on and buttoning things up. What's the opinion on fuel lines? The line was steel from the tank to the carb when it came to me. I would think that a hose would offer a lot more forgiveness.

Second part is in line filter or not. I have read posts that they are restrictive, but a screen seems to offer little to no protection against dirt.
WV Mike

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Eugene
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Re: Fuel Line Hard Line ~VS~ Rubber Hose

Postby Eugene » Wed Oct 19, 2016 7:01 am

ctltmp wrote:Second part is in line filter or not. I have read posts that they are restrictive, but a screen seems to offer little to no protection against dirt.
You are going to get a lot of opinions on this topic.

I have used the "rubber" fuel line with gravity fed fuel filter for 11 years. Only had to replace the fuel filter once, easy task.

When I do major work on a tractor, I replace the sediment bowl with a ball valve, then a "rubber" hose, and gravity flow filter.

Ball valve, positive fuel shut off.
I have an excuse. CRS.

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Slim140
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Re: Fuel Line Hard Line ~VS~ Rubber Hose

Postby Slim140 » Wed Oct 19, 2016 7:05 am

Is your tank clean & rust free? If so go back steel, do it right the first time and be done with it. The tank is hard mounted on a Cub and doesn't need rubber to forgive, that's one reason they had steel on them to begin with. With that being said our '49 had a rubber line on it with an inline cut off (no filter) when we got it and there's no telling how long it had been on there. It has brass on it now because I haven't switched it to steel after finding out I shouldn't have used brass.
Last edited by Slim140 on Wed Oct 19, 2016 7:38 am, edited 1 time in total.
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Re: Fuel Line Hard Line ~VS~ Rubber Hose

Postby JohnMihevic » Wed Oct 19, 2016 7:23 am

If you need to have stock original go with the steel. I have used the rubber hose for years with no problem. I use a good quality hose designed for fuel, Briggs & Stratton # 395051R (.250” X .440” ). I have the later sediment bowl, that has a "stub end" that goes a short distance up in the fuel tank so that the fuel is not drawn directly off the bottom of the tank. As a precautionary measure, ocassionaly, I will siphon off some gas with a short flex hose around the "stub end" to draw off any dirt particles that may have collected at the bottom of the tank.

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Re: Fuel Line Hard Line ~VS~ Rubber Hose

Postby Matt Kirsch » Wed Oct 19, 2016 8:51 am

The main issue with the rubber hose is on tractors with the underslung exhaust. It lays right on the HOT exhaust pipe, and there's no way around it. You do the math...

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ctltmp
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Re: Fuel Line Hard Line ~VS~ Rubber Hose

Postby ctltmp » Wed Oct 19, 2016 12:41 pm

Well I won't have to worry about the exhaust issue since it's vertical. Amazingly enough the tank is pretty darn clean.

I like the thought of the rubber hose with an interest line filter and shut off. What i.d fuel line are you running?
WV Mike

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Re: Fuel Line Hard Line ~VS~ Rubber Hose

Postby Eugene » Wed Oct 19, 2016 1:11 pm

ctltmp wrote:What i.d fuel line are you running?
1/4". The 1/4" fits most gravity fed fuel filters. You can purchase hose barbs in that size from the hardware store.
I have an excuse. CRS.

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Re: Fuel Line Hard Line ~VS~ Rubber Hose

Postby clm2112 » Wed Oct 19, 2016 7:33 pm

My opinion is that both steel and rubber fuel line are acceptable in most cases. I had a mangled steel line and replaced it with rubber. It has worked fine for several months so far of daily use. (I haven't been around the forum much... been spending a lot of time hauling wood on the Cub.) If you have a working steel line, there's really no reason to switch to rubber. If you have a working rubber line, then there's no reason to switch back to steel.

The point about the under-slung exhaust bears repeating. That exhaust pipe gets pretty hot and the fuel line runs right behind it. Since I opted for a vertical exhaust, I didn't have any conflict with using a rubber fuel line with an in-line filter.


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