Originally Posted by rslifkin
Personally, with 2 engines and 2 tanks, I prefer a tank to engine setup. I'd re-plumb the valve setup so that you can select either engine to either tank and same for the generator. Then normally each engine draws from its own tank (reduces the chance of a fuel issue taking out both engines at the same time and keeps the boat more level) and the generator can be switched to either as needed.
On my own gas boat, each engine draws from its own tank, but with a crossover valve setup so you can run both engines from 1 tank. Generator has its own pickup and draws from the port tank only, no way to switch it to the stbd tank.
This is exactly what I planned on doing, just would have thought in the boats life someone would have done it by now if it did not come that way.
I planned on one line from each tank to the engine room, then a t set up with valves so you can run each off of one tank or each off of their own tank, and a line from one side to the gen set, it never gets used a lot anyhow.
I still don't know why they don't pull equally, you would think it would as each tank should see the same draw vacuum as each line is the same distance.