Mazda Rotary Club

General => General Technical => Anything Engine/Performance/Tuning related => Topic started by: leeroy_25 on June 14, 2014, 11:09:38 PM

Title: Fuel Tank Breather Connection
Post by: leeroy_25 on June 14, 2014, 11:09:38 PM
I am running new lines for my 20B conversion without the hard pipes. I worked out where the feed and return go but I am a little stuck with what to do with the fuel tank breather?I gather this connects to the charcoal canister and then the little catch tank under the throttle body on a 13B and then goes via a solenoid and one way check valve to the UIM.
What I want to know is what to do with it now. I have no charcoal canister and no way of powering the solenoid, But I d have the 13B catch tank bit the bendy bit of pipe that connects to it and the check valve all in tact.
Can I remove the solenoid and connect this the catch tank to the UIM with the check valve in place then run the breather direct to the catch tank? Do I need the bendy bit of pipe to stay in place as well or can I just run a  pipe straight to it?
Other options?

Cheers
Lee
Title: Fuel Tank Breather Connection
Post by: leeroy_25 on June 16, 2014, 07:49:07 PM
Can anyone shed any light on this please?
Title: Fuel Tank Breather Connection
Post by: shaunwil on June 16, 2014, 08:30:22 PM
I my new setup I\'m just running into the charcoal filter next to the tank and then venting to atmosphere from the filter. Junked the rest of the system.

Not fully run yet, but I was advised to go this way by a well known tuner.

Shaun
Title: Fuel Tank Breather Connection
Post by: leeroy_25 on June 24, 2014, 01:19:45 PM
Thank you Shaun,
I think that is what I will be doing on further advice too.. Would be nice to vent inside the engine and keep fumes down but hey!