Best way to disconnect the fuel lines?

Max777 · 05-18-2008, 12:02 AM

Umm, yeah, what's the best way to disconnect the fuel lines from the engine withought making a huge mess?

I'm about to pull my old one out as soon as the stand adaptor comes in, and I'm a bit worried about this, like burning my house down and all. I heard I need to plug them up or soemthing? Haynes just says "disconnect the fuel line" and that's it.

Anyone want to chime in? This could be a great searchable thread for the future!

RETed · 05-18-2008, 04:52 AM

I don't do anything special except for the usually precautions when dealing with flammable liquids - no smoking, no sparks, remove all sources of ignition, etc.

I just had a couple of rags handy to soak up as much of the spilled gas as possible.

-Ted

Apac tii · 05-18-2008, 06:30 AM

Just have plenty shop rags on hand to soak up the fuel thats all I do.

Ender · 05-18-2008, 10:38 AM

I usually forgo the rags even. If the fuel isn't going to get on anything painted I usually don't worry about it. But that's just me. I do sometimes cut fuel while it's running when I know I need to work on it so there won't be as much fuel in the lines. You should try to keep the mess down, but whatever.

Max777 · 05-18-2008, 02:44 PM

ok....

so do i need to plug them?

Also, where can I get the fuel injection fuel line? And what size do I need? Thanks.

Ender · 05-18-2008, 06:54 PM

Oh, yeah, I'd recommend plugging all openings. However I usually only do if I'm going to leave them exposed for more than a couple hours, be stirring up any dust or crap that could fall in, or both. Parts stores will have fuel line. I think 5/16" line will replace the stock rubber lines.

Max777 · 05-19-2008, 12:33 AM

I went to Autozone, and they had some, but it was MAD expensive, and was only sold in short lengths.

I was looking for like a spool of it.

Would this work?

http://cgi.ebay.com/ebaymotors/FUEL-...QQcmdZViewItem

RETed · 05-19-2008, 02:26 AM

Yep, they charge like $5+ PER FOOT locally here!
I think that's the same guys I've bought mines from off of eBay.
I've got no complaints!
And 5/16" is the correct size - it's like ~8.5mm in metric.

-Ted

TehMonkay · 05-19-2008, 01:32 PM

sae30r9 plug that into google im sure you'll find something cheap, i bought mine off of ebay.

My5ABaby · 05-19-2008, 01:38 PM

Sometimes I get it cheap and sometimes it's ridiculous.

Anyways, I use my fuel cut switch and let the car turn off (you can also rev to 3000rpm and turn the car off). I let it sit for a while and then just pull the lines off. I try to keep them pointed vertical so all the gas stays in the line. I don't have the metal lines in the rats nest so those aren't an issue for me.

Max777 · 05-19-2008, 05:33 PM

Well, I found some good info on the SAE30R9 hose:

http://www.dieseltruckresource.com/d...p/t-89044.html

NOTE: it also mentions only using SAE 30R10 hose for submersible applications, so for anyone reading this in the future, be shure to do that!

Phoenix7 · 05-19-2008, 05:55 PM

i don't get the problem. Rip off the old lines, go get new lines and you're done. You obviously need to make sure the fuel system is depressurized and don't have an open flame anywhere near you (includes water heaters in garage) but other than that it should be straight-forward (like vacuum lines).

Max777 · 05-19-2008, 06:05 PM

Dude, I got it. Just posting up some useful info for people who need to do the same thing in the future. Dont get too excited!

Phoenix7 · 05-19-2008, 06:09 PM

who's excited? Did you ever find a cheap source of fuel lines?

Max777 · 05-19-2008, 07:00 PM

I thought tha $30 for 10 feet of it is pretty cheap, no?

http://cgi.ebay.com/ebaymotors/THERM...spagenameZWD1V

05-18-2008, 12:02 AM	#1
Max777 Pirate Join Date: Mar 2008 Location: Central IL Posts: 1,323 Rep Power: 19	Best way to disconnect the fuel lines? Umm, yeah, what's the best way to disconnect the fuel lines from the engine withought making a huge mess? I'm about to pull my old one out as soon as the stand adaptor comes in, and I'm a bit worried about this, like burning my house down and all. I heard I need to plug them up or soemthing? Haynes just says "disconnect the fuel line" and that's it. Anyone want to chime in? This could be a great searchable thread for the future! __________________ Rotaries:They are NOT that complicated!

05-18-2008, 06:30 AM	#3
Apac tii Rotary Fan in Training Join Date: Mar 2008 Location: Indiana Posts: 38 Rep Power: 0	Just have plenty shop rags on hand to soak up the fuel thats all I do. __________________ 1988 Mazda RX-7 T2(list of mods here) http://designengineeringworks.com/project_cars.php 2004 Saturn Ion Redline(dd) 1999 Mitsubishi Galant V6(the backup beater)

05-18-2008, 02:44 PM	#5
Max777 Pirate Join Date: Mar 2008 Location: Central IL Posts: 1,323 Rep Power: 19	ok.... so do i need to plug them? Also, where can I get the fuel injection fuel line? And what size do I need? Thanks. __________________ Rotaries:They are NOT that complicated!

05-19-2008, 12:33 AM	#7
Max777 Pirate Join Date: Mar 2008 Location: Central IL Posts: 1,323 Rep Power: 19	I went to Autozone, and they had some, but it was MAD expensive, and was only sold in short lengths. I was looking for like a spool of it. Would this work? http://cgi.ebay.com/ebaymotors/FUEL-...QQcmdZViewItem __________________ Rotaries:They are NOT that complicated! Last edited by Max777; 05-19-2008 at 12:40 AM.

05-19-2008, 01:32 PM	#9
TehMonkay Rotary Fanatic Join Date: Apr 2008 Location: Louisville, KY Posts: 302 Rep Power: 18	sae30r9 plug that into google im sure you'll find something cheap, i bought mine off of ebay. __________________ My car blows up everytime I start it, it's rotary

05-19-2008, 01:38 PM	#10
My5ABaby Sigh..... Join Date: Feb 2008 Location: Murfreesboro, TN Posts: 2,377 Rep Power: 20	Sometimes I get it cheap and sometimes it's ridiculous. Anyways, I use my fuel cut switch and let the car turn off (you can also rev to 3000rpm and turn the car off). I let it sit for a while and then just pull the lines off. I try to keep them pointed vertical so all the gas stays in the line. I don't have the metal lines in the rats nest so those aren't an issue for me. __________________ 1986 Sport: 132k miles, 5A (Sapphire Blue Metallic), Tokico Blues, Racing Beat Springs, Custom LED tailights (only S4 LED tails in the world), SSR Mark II, Racing Beat exhaust, S5 black interior, Rotary Resurrection rebuild at 120k miles Community Service Manual RotorWiki "Imagination costs nothing; we could build square locomotives or fly to Mars" - Felix Wankel Yesterday is history, tomorrow is a mystery, but today is a gift. That is why it is called the "present."

05-19-2008, 05:33 PM	#11
Max777 Pirate Join Date: Mar 2008 Location: Central IL Posts: 1,323 Rep Power: 19	Well, I found some good info on the SAE30R9 hose: http://www.dieseltruckresource.com/d...p/t-89044.html NOTE: it also mentions only using SAE 30R10 hose for submersible applications, so for anyone reading this in the future, be shure to do that! __________________ Rotaries:They are NOT that complicated!

05-19-2008, 06:05 PM	#13
Max777 Pirate Join Date: Mar 2008 Location: Central IL Posts: 1,323 Rep Power: 19	Dude, I got it. Just posting up some useful info for people who need to do the same thing in the future. Dont get too excited! __________________ Rotaries:They are NOT that complicated!

05-19-2008, 07:00 PM	#15
Max777 Pirate Join Date: Mar 2008 Location: Central IL Posts: 1,323 Rep Power: 19	I thought tha $30 for 10 feet of it is pretty cheap, no? http://cgi.ebay.com/ebaymotors/THERM...spagenameZWD1V __________________ Rotaries:They are NOT that complicated!