Day Tank / Header Tank help

[Rustic Charm]

I'm installing a 48ltr plastic header tank (Diablo) to try to fix my fuel problems. The tank will be a few inches above the engine height and it's source will be from a 170 ltr keel tank. I'm considering installing a 10mm fuel line back to the keel tank as an over flow for accidental over flowing.

Will I need a breather line in this tank to the outside like the main tank has?

[Snowpetrel]

Hi RC, hope you are going well up your way.

Yes you need a breather. Prehaps it could 'T' into the existing breather, and if placed correctly it could function as both a breather and an overflow?

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[conachair]

Originally Posted by Snowpetrel

Yes you need a breather. Prehaps it could 'T' into the existing breather, and if placed correctly it could function as both a breather and an overflow?

That's what I did when fitting one not so long ago. Also went to town a bit with some valves whichwas worth the effort, so now can basically pump through a filter from keel to daytank or canaster, or the other way wrong. Looks a bit more complicated than it is..

[Snowpetrel]

Also make sure the fuel return goes through the daytank as shown in Conch's diagram. The returns can pump quite a bit of fuel on some motors.

[GILow]

I had a bit of trouble sharing the breather with the return line before I installed an addition fitting on the tank last year. Take care that fuel cannot pool anywhere in the breather section of the line otherwise spouts out the breather outlet when filling the tank.

BTW, a bit late now but I just posted a quick summary of building a cheap and easy day tank.


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[GILow]

Looking at the fuel hatch for that tank there will be no need to double up on any lines. It has an impressive array of spare ports.

They looked to be a nicely thought out tank but of course they did not fit the space I had available.


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[Snowpetrel]

Good point on the sags and trapped fuel blocking the breather. Do you have a link to the cheap day tank thread?

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[GILow]

I think this link will work:

http://www.cruisersforum.com/forums/...d.php?t=172888


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