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SuzukiSavage.com
/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> Fuel line size? /cgi-bin/YaBB.pl?num=1253212574 Message started by Mattdw on 09/17/09 at 11:36:13 |
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Title: Fuel line size? Post by Mattdw on 09/17/09 at 11:36:13 Trying to find out the fuel line size...tore it while disconnecting it from the carb...should I be able to pick it up at AutoZone, etc? What are the dimensions I would need to give them? |
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Title: Re: Fuel line size? Post by justin_o_guy2 on 09/17/09 at 11:44:40 Carry the old one in.Any parts house.. |
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Title: Re: Fuel line size? Post by Mattdw on 09/17/09 at 11:45:45 736C6A6D70774676467E6C602B190 wrote:
Wanted to get it tonight on the way home from work...forgot to bring in the broken line :) |
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Title: Re: Fuel line size? Post by justin_o_guy2 on 09/17/09 at 11:49:21 I want to say it 1/4 " ID, but that stuff is cheap enough, so, get a foot of 1/4 & a foot of 3/16ths, if you are afraid of missing it. Maybe someone will chime in b4 you get ioff work, |
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Title: Re: Fuel line size? Post by jabman on 09/17/09 at 11:59:16 the inside diameter is 8mm im getting a in-line fuel filter so i checked today |
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Title: Re: Fuel line size? Post by Serowbot on 09/17/09 at 12:01:51 Like jabman said,.... it's 8mm, equal to 5/16",.... I went and measured... You can force a 1/4" on, if you like wrestling... I mean really like wrestling!... :-? |
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Title: Re: Fuel line size? Post by justin_o_guy2 on 09/17/09 at 17:54:17 A knife run around the inside to skin the first little back & make a funnel shape & a lighter to soften it a bit & some spit to lube it,, I bet I could do it.. |
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Title: Re: Fuel line size? Post by boofer on 09/17/09 at 20:25:13 Use 5/16 and good clamps. Gives good fuel flow. |
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Title: Re: Fuel line size? Post by justin_o_guy2 on 09/18/09 at 01:52:33 Of course, buy the right one, but if you ever have to crush one on & it doesnt want to go..then do those things & it becomes a bit less impossible. |
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Title: Re: Fuel line size? Post by Mattdw on 09/18/09 at 07:04:00 6E786F726A7F72691D0 wrote:
THANKS all! :) |
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Title: Re: Fuel line size? Post by doh13 on 05/27/14 at 10:33:48 I know I am resurrecting an old post but I wanted to add that my measurement of the original fuel line of my 99 savage was 7 mm across the inside diameter on both ends . The 7 mm measurement was likely due to the line shrinking back down to the "real" size after being off the carb for a couple of weeks. 8mm, 5/16 would work fine as well and in other posts by Oldfeller he even recommended 5/16 or 3/8 because it will slip on easier and have better flow if you want to add a filter for more info see http://suzukisavage.com/cgi-bin/YaBB.pl?num=1211846392.. |
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Title: Re: Fuel line size? Post by Dave on 05/27/14 at 11:08:08 Definitely use 8mm or 5/16". Going down to a 1/4" doesn't sound like much restriction - but in a gravity system it is. (5/16") squared x Pi = 0.3068 square inches (1/4") squared x Pi = 0.1963 square inches 0.1963/0.3068 = 0.6398. So the 1/4" is only 64% of the flow area of the 5/16" hose. If you were to calculate effects of the wetted perimeter vs. volume.....the 1/4" hose most likely will flow less than half the volume of the 5/16"fuel hose. |
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Title: Re: Fuel line size? Post by justin_o_guy2 on 05/27/14 at 11:11:45 Take a piece of 1/2 schedule 40 PVC pipe, lay it flat for one mile,,hook it to a pump & nothing comes out,,it blows up at the pump,, no matter how slow, because the hydraulic restriction of flowin inside a pipe that long is just too great, you cant get a gallon an hour,, OR so some smarty pantsed guy told me when I was selling PVC.. & valves & all such stuff.. |
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Title: Re: Fuel line size? Post by doh13 on 05/27/14 at 12:59:35 774C4156474B50564D454857240 wrote:
Good info i would be interested in knowing if anyone has actually had troubles with flow being inadequate with or without an added in line filter using the OEM fuel hose with a raptor petcock (free flowing) or is it just mainly a precaution to use a bigger fuel hose? |
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Title: Re: Fuel line size? Post by Dave on 05/27/14 at 13:07:24 555E590002310 wrote:
Good info i would be interested in knowing if anyone has actually had troubles with flow being inadequate with or without an added in line filter using the OEM fuel hose with a raptor petcock (free flowing) or is it just mainly a precaution to use a bigger fuel hose?[/quote] Yes, there have been issues with using 1/4" fuel line and an inline fuel filter. The 1/4' fittings have a much smaller hole....and they can "air lock" when a trapped air bubble cannot flow upward and block the fuel from flowing down. I will look and see if I can find the thread where that was discussed. I believe S-P was the latest victom of this air block when he installed an inline fuel filter....or maybe is was Gerry? Dave |
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Title: Re: Fuel line size? Post by verslagen1 on 05/27/14 at 14:04:20 I got some silicone fuel line at amazon... I really like this sh!t. it doesn't get hard, sticks to the fitting w/out a clamp, but it's hard to get off. |
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