Fuel Pipes

[rob]

I'm having problems with the pipe connetion to my fuel filter the rubber hoses seem ok, and I'ver secured them with jubilie clips but there is a slight weep at each connection, Any one with any ideas or cures?

regards rob

 

[bryantee]

I have had the same problem in the past.I now use Banjo fittings and swaged connections.The other method is an olive and nut on copper pipe. Suggest you examine the hose .if its perished ,time to change to an approved BS something or other.
Good luck

 

[Freebee]

Are the clips the right size for the job I have seen a situation where the clips are tightened right down and appear tight,the joint weeps and on examination the clips are tight because the screw has run out of thread not fully clamping the hose.

 

[Guest]

You may have the wrong size rubber pipe for the size of the brass fitting in the filter. If the pipe is to large any amount of tightening won't completely seal the pipes. Also do you have "plastic pipe" which may now be at the end of it's usful working life?
best of luck with it
regards
peter

 

[PaulJ]

Also, if the jubilee clip is too large, the housing for the grub screw can be too wide for the pipe being squeezed so that the pipe gets squashed and distorted rather than being squeezed evenly all the way round. For small diameter pipes I have found that a good way to clamp them is to use copper wire - the earth wire from some 15amp house wire is ok - wind it twice round the pipe and then twist the ends together with a pair of pliers. Be careful not to over tighten it as it can cut into the pipe......

 

[Guest]

Re: Fuel Pipes NEVER - NEVER!!!!!!!!!

Please ignore the "use copper wire" to clamp a fuel hose to a fitting!!!!!!!!!!!

The difference between:

o "The wire is tight and OK." and
o "The wire is loose and the connection will fall off." and
o "The wire has just broken".

is all "Grace of God" - and God is generally too busy to worry about a sailor trying to cut corners!!

Use the correct fitting and pipe - the correct grade and size of fuel hose - the correct size of jubilee clip (times 2 at each end) and there will be no problems.

Best regards )

IanD

 

[ChrisP]

Re: Bodge ups

Yet another example of the need for a BSS. Maybe after you've seen a few boat fires or removed the odd chrispy thing that was once a human being. You'll come to the conclusion that maybe shortcuts on fuel systems arn't such a good idea. Do the job properly or get sombody in who can.

 

[Plum]

Your hose should have "ISO7840" printed every 0.3m along its length. This is the correct standard for fire-resistant marine hose and also has a decent wall thickness which helps sealing. The metal tails should have three or more rings - "barbs" - on them (not a smooth tube) and be 1mm larger outside diameter than the internal hose bore. Then, use the smallest diameter stainless-steel hose-clip that will slide over the hose once it is pushed onto the tails. The clip should have a band-width of at least 8mm. The tails should be clean and free from corrosion/pitting. The clip should be 5mm from the end of the hose. Do not over-tighten the clip so that a swelling appears each side of the clip. If you have the setup I suggest, then you will not get leaks.

 

[andy_wilson]

I concur wioth the man who uses flexible pipes with swaged ends.

Either that or fit copper pipe with compression joints.

Fuel pipes with jubilee clips?

Not on my boat.

 

[david_bagshaw]

I also go with your view, other than an emergency

David
www.euroboating.net

 

[rob]

Re: ChrisP

ChrisP,

Thanks I've certainly taken note.

Thought I'd reply.

Rob

 

[rob]

Thanks all.

Found the problem after the advice of size of hoses, both were very slightly too big, cured it now thanks.

Regards
rob