10 replies to this topic

[Steve8274]

Hi
Just looking to replace the fuel hose under my car. Just like to confirm I can use 6mm microbore copper pipe. Something like
http://www.plumbers-...6030-4819-p.asp
Was going to purchase 3 metres. Or does the pipe need to be a special type
Thanks in advance

[Steve220]

As long as its 6mm internal bore, then it shouldn't be an issue.

[Steve8274]

Many thanks. I will double check first. The car is only a standard 998

[cal844]

I use 8mm microbore then jubilee clip fuel hose to go over the subframes and to the tank

[Boycie]

I've never actually replaced the long fuel pipe, but is it possible to put a slight flare in the ends of the pipe?  Would make the rubber connections more secure.

[Dusky]

A hose flaring tool would be ideal for the job. ;)
But a bubble flare is probably more than you ll ever need.

[Steve8274]

I use 8mm microbore then jubilee clip fuel hose to go over the subframes and to the tank

I thought it was 6mm or 1/4 inch
would 8mm be ok for a standard 998 and what are benefits of 8 over 6?
I was planning to use fuel hose to connect to tank.

Edited by Steve8274, 02 March 2018 - 07:50 PM.

[Retroman]

There is no benefit from having 8mm over 6mm and you don't need to flare the pipe ends.

 

The standard 6mm pipe is fine and fuel pressure is less than 5 psi from most pumps so flared pipes are unneeded.

 

Some of the standard pipes and hoses from mechanical pump cars have no flares or clips

 

That said I would always use clips unless its one of those with the standard no clip pipes.

 

[Steve8274]

Having looked at the pipe in my link again, I think the 6mm is the outside diameter. Does anyone know where to get 6mm id pipe from?

[Retroman]

I don't think anyone specifies 6mm ID or OD as it does not matter.

 

Pm me I can do copper or cunifer (copper nickel iron alloy)

[cal844]

The reason I use 8mm pipe is it's a snug fit with the fuel hose, it also makes the pump work less as the bigger pipe doesn't cause too much restriction