I'm upgrading the complete fuel system from the fuel pump to the injectors.
Despite taking care, on the penultimate fit the plastic elbow broke.
It was embrittled which is obvious in the way that it sheared. Not a good look
I ordered two plastic replacements from England (when they turn up if anyone wants them they can have them)
However it is a weak spot in the system so I looked to how to go to a metal replacement.
The Zip Ty unit is metal but doesn't have the star washer to retain it.
My retaining method should work for it as well as my version.
Looking at the metal flange there is enough depth to drill and tap a 3mm or 1/8th hole to take a grub screw[You must be registered and logged in to see this image.]
Being a belt and braces type I'm going to tap another at 90 degrees but one is quite sufficient really.
The grub screw will stop the fitting being pushed out by the pressure of the fuel pump but still allow the fitting to rotate.
Since the grub screw is not tightened onto the fitting it will need to be glued with epoxy or similar to stop it coming loose.
It will however be able to be removed if necessary so is not permanently installed like the plastic one.
A machinist who owes me made the fitting up for me.[You must be registered and logged in to see this image.]
I'll pick up the O rings and fit it tomorrow.
The reason I've a barbed end rather than the quick release coupling is because I've fitted a dry break fitting further along the fuel line.
The top two recesses are for the O rings the third is for the grub screw to hold the part in place.
From my searches online this is a common problem on many bikes.
If someone wanted to make a few $s getting a batch made up and putting them on ebay seems worth trying.
The reasons for upgrading the system were firstly when I removed the tank there was a permanent kink in the fuel line (scary)
and I hadn't cottoned on to needing to bleed the pressure from the system before trying to remove the quick release coupling.
I've replaced all the plastic lines with black stainless steel braided hose, the plastic T splitter with a brass one and as I mentioned
aluminium dry break quick release couplings. All up cost around NZ$200 (about US$100)
For the peace of mind, cheap insurance.
If the kinked hose or plastic elbow had failed
petrol under pressure would have been sprayed onto the motor with likely disastrous results.
I'll post more photos tomorrow when everything is in place