Jokani
Active member
On the last trip of the 2015 season the original mild steel fuel tank on my Westerly Centaur developed a leak, and dumped most of it's contents in to the bilge, luckily there was just enough diesel below the source of the leak to get me back to a harbour.
So I need a new tank!
Tek Tanks sell one:
The tank is the same size as the original Westerly one, but the fittings could be for any engine setup.
I will be connecting the tank to a newly installed VP MD2020, so I think I need
1 x 38mm hosetail for the filler
1 x 8mm hosetail for the fuel return
But there are a few things that I am unsure of:
Thanks in advance for your advice.
So I need a new tank!
Tek Tanks sell one:

The tank is the same size as the original Westerly one, but the fittings could be for any engine setup.
I will be connecting the tank to a newly installed VP MD2020, so I think I need
1 x 38mm hosetail for the filler
1 x 8mm hosetail for the fuel return
But there are a few things that I am unsure of:
- Do I need to vent the tanks to a thru-hull? I see that some installations have vents but I'm unsure why, certainly Westerly did not fit one to this Centaur, but I'm not sure if now having a return pipe changes that?
- The MD2020 has connections for 8mm ID fuel pipe, so I presume I can use 8mm ID diesel rubber pipe throughout the installation, including the tap and return
- It is only a short distance form the tap to the fuel filter, would it be sufficient to use diesel approved fuel pipe rather than copper pipe?
- The old tank did not have an inspection hatch, I think I can save money and not spec one for the replacement?
- There is plenty of room, so I may increase the width from 370mm to 500mm and increase the capacity/range. The new engine is half the weight of the old so I presume increasing the size of the tank/weight of fuel would not be an issue?
Thanks in advance for your advice.