My last gas tank installation question

[Runningwild]

In the pictures you can see a bump in the filler neck casting. I assume the filler hose goes over it and the clamp goes on the flat part of the neck. Not sure what that bump is for.

[andy harwood]

By any chance is there a corresponding notch in the opening for the filler housing in the car body? Maybe to orient the filler cap hinge? Other than that, dunno.

[EuropaTC]

This might sound odd, but my first impression was that it was a boss to be drilled/tapped for a breather tube to a filter.  Mine's just a straight tube but I couldn't say if it's OEM or later addition.

Brian

[jbcollier]

Yup, it’s an undrilled boss for a breather.  The hose does not go over it.

[Runningwild]

Thanks John. Tank is mounted now just connecting the filler hose.

[andy harwood]

Cool. Learn something new all the time! 

[Grumblebuns]

Tom, that looks like a TC filler with a flip cap. I thought you were fitting a S2 tank.

[4129R]

All 12 (6 pairs) that I have removed from TCS have a small vent tube there which corresponds to a small notch cut in the fibreglass.

I renew the 50mm (2") rubber tube, but retain the clips, as so far I have not seen a badly corroded clip.

The rusting on the tank tops is a different story. Some tanks have more hole than metal left.

[Runningwild]

The flip up gas filler came with the car. Ordered a vented unit that will mount to the body as well as flexible 2” hose. Hopefully this will make it easier.