fuel line carb to efi

[3sfe]

I'm doing a carb to efi on a hiace so I have to cut the steel fuel lines to put the efi hoses on, so i was wonder what do people do to stop the hoses from slipping off as there is normally a bulge about 5mm from the end?

[thechuckster]

flaring tool - tradetools or supacrap might be able to help?

the one of concern will be the fuel feed line - the others aren't under pressure. Do you need to trim the ends?

[schnitzel]

Either just double clamp or use wider style efi hose clamps, both work with no problems, just make sure you use proper efi fuel hose as standard stuff doesn't take the pressure.

Regard

[TA-022]

stick a firm screwdriver in the end and swivel it around .. should flair it.

bit dodgy 'ish but should do the trick.

[o_man_ra23]

1. Replace pipe with larger diameter pipe
2. Use compression fittings with screw ends to join metal to rubber
3. ???
4. Profit!

Cheers, Owen

[oldcorollas]

1. Replace pipe with larger diameter pipe
2. Use compression fittings with screw ends to join metal to rubber
3. ???
4. Profit!

Cheers, Owen

like this?

i got some from enzed for my carb to efi conversion

[o_man_ra23]

That would work too Stu... but I was thinking the ones where there is a compression fitting (no screw clamp) on the rubber hose with a screw end. Banjo fittings are also good. If you eliminate the screw fittings, you remove the human error from yourself, and can put the blame of bad fittings on Pirtek/Enzed or whoever you get to clamp them on.

Cheers, Owen

[TA-022]

like this?

i got some from enzed for my carb to efi conversion

would this not still require flaring for the bolt end?

[o_man_ra23]

No, they have a compression fitting which takes the place of the flaring (at least the ones I use do). The compression fitting items are no good for hydralic systems, but the relatively low pressure (40psi as opposed to a couple of hundred psi) in EFI fuel systems allows the compression fittings to be successful. No special tools are needed, just two spanners of correct size.

Cheers, Owen

[oldcorollas]

they usually have a metal olive inside that becomes crimped onto the metal tube you put in.
it gives a metal to metal seal, and is good for sealing for hydrogen (ie no leaks), and they are good for gas bottle pressure at least.. as one of the blurbs says..

Swagelok fittings are excellent for low-pressure gas and water connections.

ahh i see what ya mean i used the above fittings for the tank outlet/inlet, and from the hardline to filter. on other side of filter, i used compression fitting banjos....

agred, compression fittings will be best.. if you have something they can be bolted/screwed to.

[TA-022]

ah k olive just like in mechanical oil pressure guages ... noted.

[o_man_ra23]

Yeah, thats the ones I was on about Stu... tanks. It costs about $20 a hose plus fittings to have them assembled. So probably about $30 per hose, two hoses makes $60 including all fittings. Then you need the steel pipe, not sure the price per meter, but you can get one which is flexible, run the new pipe and use olives to compression fit to your custom made hoses... you can do the install yourself and you will have a super reliable no leak system with whatever large diameter hose you want (upgrade while your at it, doesnt cost much)

Cheers, Owen