want to replace Q-Jet with Edelbrock carb. this will require "re-plumbing" the fuel line from the pump to the carb.

if i cut the stock fuel pipe coming from the stock fuel pump to the carb what type of flaring tool will i need to use on the fuel pipe in order to attach a rubber fuel line hose??

also, can i safely cut the pipe while on the vehicle (with fuel in it) with a hack saw or other tool?

thanks for the info.

 

DON'T use a hacksaw....a small tubing cutter is available at any Home Depot or hardware store....also a flaring tool, just check in the plumbing section.

 

I too have just about all of the the same questions!!!

First of all, I wouldn't use a hacksaw to cut the tubing. You will not get a 90 degree cut and you'll make a lot of metal filings that may fall into the gas line and later cause problems. Get a tubing cutter. You can buy them from Sears (I have one, forget what I paid - not much), also you can buy one from Snap-On ( I think it costs $49 which is a lot of money for a tube cutter, but very cheap for Snap-On!!!)

OK, now you/ve got your line cut, now what...this is where I'm not too sure. The gas line will need to be flared with one of several shapes. A 45 degree single flare, or a bead like flare, or there's a 37 degree flare. (Like you I'm still in a learning mode here.) Anyhow, if you want to see what's going on in the flaring world go to inlintube.com and look at their flaring tools. Also check out eastwood.com for their flaring tools. I've already bought a 45 degree flaring tool set with the hopes that this will be useful. Also, I have nearby an Earls shop, so I'll ultimately go to see them. Earls sells a line of gas and hydralic line fittings. The guy at the store said he would build me a gas line from the frame originated tubing to the carb, including the carb filter. If you want to check our Earls, they've been bought out so now I think that you have to look for Holley carb's home page you'll find Earls. Earls has a lot of that really neat aluminum hydraulic fitting hardware (along with steel also.).

 

I too have just about all of the the same questions!!!

First of all, I wouldn't use a hacksaw to cut the tubing. You will not get a 90 degree cut and you'll make a lot of metal filings that may fall into the gas line and later cause problems. Get a tubing cutter. You can buy them from Sears (I have one, forget what I paid - not much), also you can buy one from Snap-On ( I think it costs $49 which is a lot of money for a tube cutter, but very cheap for Snap-On!!!)

OK, now you/ve got your line cut, now what...this is where I'm not too sure. The gas line will need to be flared with one of several shapes. A 45 degree single flare, or a bead like flare, or there's a 37 degree flare. (Like you I'm still in a learning mode here.) Anyhow, if you want to see what's going on in the flaring world go to inlintube.com and look at their flaring tools. Also check out eastwood.com for their flaring tools. I've already bought a 45 degree flaring tool set with the hopes that this will be useful. Also, I have nearby an Earls shop, so I'll ultimately go to see them. Earls sells a line of gas and hydraulic line fittings. The guy at the store said he would build me a gas line from the frame originated tubing to the carb, including the carb filter. If you want to check our Earls, they've been bought out so now I think that you have to look for Holley carb's home page you'll find Earls. Earls has a lot of that really neat aluminum hydraulic fitting hardware (along with steel also.).

 

if you are just looking to make a ridge for the hose to fit over you can use a double flaring tool but do not complete the last flaring part of the operation...this may you the give the ridge you are looking for. I would recomend that you go with an all steel line and if you want to use a inline fuel filter go with one that has threads and is screwed on...

 

make sure you get the right flare tool, there is a automotive and a residential the diff is that one is 45 degrees and the other 37.5 or something like that.

 

First of all, lars has written a great article (with pics!) on how to make your own fuel line. It is available at www.corvettefaq.com
Do a search on 'fuel line' and you should be able to find the article. I followed his instructions and have a beautiful pump to carb line that includes a big fat inline screw-in fuel filter.

My experience - the little pipe cutter from Pep boys works great. It's about $5.99

The little pipe bender from Pep boys works great. It's about $7.99.

The little $10.99 flaring kit sucks. It will not make a double flare. You have go for the $29.99 flaring tool (Rigid makes a good one) and it still will take some practice to make a decent double flare.

Try this link for lars' article. It is a Word document:

http://www.corvettefaq.com/redir.asp?site=227

 

Make sure you get the double flare tool. When I upgraded to TPI and a serp set up I had to make my own lines and it took a while to get it right. Practice a couple times first. Good Luck.

 

The Rigid flaring tool is nice. It has a built-in clamp to put better
pressure at the clamping of the tube. You can get the cheaper
tool to work by putting a C-clamp around the die and clamping the
tube better.

 

From your post it sounds like you want to clamp a fuel hose over a cut pressurized fuel line. Generally not a good idea. There are adapters from inverted flair to barbed hose you coould screw on to the free end of the existing line. But the free hanging hard line will probably rattle, bend, and break eventually.
Either make a new hard line, or:
Your fuel pump will probaby have an inverted flare fitting screwed into an 3/8" NPT threaded hole in the pump. Remove the fitting in the pump and replace with 3/8" NPT to 3/8" hose barb or better yet, 3/8" NPT to -6 AN/JIC and use braided line.
Gary

 

45 degree flare is SAE and is usually for low pressure applications. 37 degree flare is JIC and usually used more in hydraulic applications.The adapters are interchangable except in 3/8 and 3/4 size.you can buy an adapter that will have the male flare on one end and a hose barb stem on the other.I replaced my entire fuel line with ss tubing to the carb from the fuel filter(new inline) and a ss hose from the pump to the filter for vibration purposes.

 

BTW, if you're going to make your own inverted flare fuel line, you can use the standard 45 degree flaring tool. I've only seen inverted flares of 45 degrees. Although standard hydraulic lines do come in SAE (45 degrees) and AN or JIC (37.5 degrees).
Oh yeah, many auto parts stores also stock precut, pre-flared hard line in several lengths. Then all you do is bend your own.
Gary

 

just rec'd a Northern Tool catalog in the mail. they have a flaring tool set for $15, pn 95286-1515. you might want to check it out. 800-533-5545 or NorthernTool.com. may be just the ticket for limited use.

 

The proper 37 deg. flaring tool is available from Summit for about $40.

 

The proper 37.5 deg. flaring tool is available from Summit for about $40.