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a fuel pump puzzle
Posted: 29 Oct 2013, 15:38
by infidel
since I am unable to get a proper fuel pump, I have to use the ones with a 6mm out let pipe, and a 7mm supply.
my 1983 1.9 dg is plumbed in for a 6mm supply, no way I can get around it.
needless to say, forcing a 6mm pipe onto a 7mm tube is far from ideal. dangerous in fact.
I have had this pipe split ,letting fuel pour over the engine.
anyone got any ideas on how to fix the problem?
I shall be grateful for any suggestions.
thank you.

Re: a fuel pump puzzle
Posted: 29 Oct 2013, 15:53
by kevtherev
VW fitted a larger bore flexible hose that fits over the fuel line as it approaches the pump.
secured with clips
over time yours has probably lost it
available from Baxters emporium I believe
Re: a fuel pump puzzle
Posted: 29 Oct 2013, 16:00
by CJH
Are you sure about those dimensions? The fuel pump on my DG has an 8mm inlet and a 6mm outlet. Whatever - I also needed to adapt from the 6mm outlet on the carb to the 8mm pipework attached to the return on the fuel tank, and after deciding, like you, that stretching the 5.6mm ID pipe over the 8mm spigot was a bad idea I bought one of
these

Re: a fuel pump puzzle
Posted: 29 Oct 2013, 16:31
by bigherb
CJH wrote:Are you sure about those dimensions? The fuel pump on my DG has an 8mm inlet and a 6mm outlet. Whatever - I also needed to adapt from the 6mm outlet on the carb to the 8mm pipework attached to the return on the fuel tank, and after deciding, like you, that stretching the 5.6mm ID pipe over the 8mm spigot was a bad idea I bought one of
these

That's the way to do it but only use the metal ones, don't buy the plastic ones they have a tendency to break.
Re: a fuel pump puzzle
Posted: 29 Oct 2013, 18:04
by infidel
CJH wrote:Are you sure about those dimensions? The fuel pump on my DG has an 8mm inlet and a 6mm outlet. Whatever - I also needed to adapt from the 6mm outlet on the carb to the 8mm pipework attached to the return on the fuel tank, and after deciding, like you, that stretching the 5.6mm ID pipe over the 8mm spigot was a bad idea I bought one of
these

you are quite right, it is an 8mm inlet.an unforgivable error on my part.
thanks a million for the link, I spent an age looking for one of these today.
there will be one winging its way to me tomorrow.

Re: a fuel pump puzzle
Posted: 29 Oct 2013, 18:06
by infidel
kevtherev wrote:VW fitted a larger bore flexible hose that fits over the fuel line as it approaches the pump.
secured with clips
over time yours has probably lost it
available from Baxters emporium I believe
the pump that has just failed has 6mm pipes on both inlet and outlet.
no longer available, so I`m told.
Re: a fuel pump puzzle
Posted: 29 Oct 2013, 18:09
by infidel
my problem is solved thanks to you all, and I very much appreciate your input
