Re: Milano Fuel Hose

[Tony Lupton <Tony.Lupton@xxxxxxxxxxxxxxxx>]

[ Nicer version with better line breaks ]

Mark Denovich and Richard Welty both commented on the hoses in the supply
and return in the RHS rear wheel area. I'm working through this problem at
the moment on my 90.

2 notes to bear in mind:

- I'm referring to an Alfa 90 setup, which has the smaller 
  50L tank under the boot/trunk floor. Not sure what the 
  GTV6/3.0L75/Milano setup is.

- I'm using the phrase "EFI hose" in lieu of "7.5mm ID EFI 
  hose". 7.5mm is not available to me. Every hose or parts 
  place I go into and say "7.5mm ID EFI hose", just gets me 
  a "huh?". So, I've been using a hose marked 8mm 5/16" for 
  a few years now without any problems.

The factory set up is:

supply:
- spigot on tank to hard metal line - 3" of 1/2" ID fuel 
  hose (not EFI)
- hard metal line to pump - 2' of 1/2 ID fuel hose (not 
  EFI). This is a moulded hose that has a nasty 180 degree 
  back into the pump. I'm struggling to replace this hose 
  at the moment, because the genuine part is NLA in 
  Australia (or at least nil-stock). 1/2" fuel hose kinks 
  if you try and follow the same curve, but there's no 
  space for a larger-radius curve. any suggestions?
- pump to filter - 3" of EFI hose 
- filter to flexible hard line - 6" of EFI hose. This goes 
  through another tight radius bend, but the hose copes 
  just fine.

  All of this can be replace with a single 4-5' length of 
  the 1/2" fuel hose from the spigot on the tank to the 
  pump input spigot, provided you can solve the problem of 
  the bend. you should probably use some wrap to protect 
  the hose from rubbing on the hose retaining straps. You 
  will of course still need the 3" and 6" pieces of EFI 
  hose on the output side of the pump.

return:
- flexible hard line to hard metal line - 3" of EFI hose
- hard metal line to spigot on tank - 3" of EFI hose

  All of this can be replaced with a single 3' piece of EFI 
  hose from the flexible hard line to the spigot on the 
  tank. Again, you should probably use some wrap to 
  protect the EFI hose from rubbing on the hose retaining 
  straps.

I never thought of getting rid of those hard metal lines, but that'd get rid
of the pig of a job of replacing the 3" piece from the hard line to the
tank, so out it will go.

Does anybody know why the supply lines don't run direct from the
tank-pump-filter-flexible hard line, but instead to
tank-bend-pump-filter-bend-flexible hard line? A much more sensible
arrangement to my way of thinking, but I'm sure there's a reason for it.

Tony
1985 Alfa 90 2.5i
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Tony Lupton                    *     ReTech Global Pty Ltd
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