Draining FASS separator

[MT_Diesel]

Sorry for the newb question but couldn't find any info except for the stock LP system. I know everyone recommends draining the stock fuel water separator monthly. Would this drain interval also apply to the FASS 150 separator?

I assume I just crack the petcock on the separator to drain fuel and any water? How much should I drain? A cup? A pint? Will draining it cause any air in the system that I'd have to do the key cycling procedure to purge?

Again, sorry for the newb questions, but I dealt with fuel system issues for the first 9 months of ownership and its finally back to running good. You could say I'm a little gun shy about touching the fuel system, even for the most basic maintenance.

Thanks!

 

[Bigboytoys]

Weeellll....

An FASS is an air/vapor separator not a water separator.

I would open the drain till 8-12oz of fuel runs out and call it good, key cycle 2-3 times and lite it off.

 

[MT_Diesel]

Cool thanks! That's what I thought but wanted to be sure. I'm tired of spending money on fixing the truck instead of fun stuff for it.

 

[Bigboytoys]

There are water separating filters for the FASS but I'm not sure which system or filter you have.

 

[Rubenk]

Weeellll....

An FASS is an air/vapor separator not a water separator.

I would open the drain till 8-12oz of fuel runs out and call it good, key cycle 2-3 times and lite it off.

Fass says otherwise:

Benefits include an improved filtration rating of 3 Microns, a built in water separation filter and FASS Fuel Systems patented air/vapor removal process.

http://www.fassride.com/detail/fuel...e/150-gph-ford-powerstroke-2008-2009-2010.php

 

[Rubenk]

And the owner's manual. Not sure why they dont include this with the kit, I didnt have it either.

http://www.fassride.com/tinymce/filemanager/files/Owners Manual Titanium 6-2015.pdf

 

[Bigboytoys]

Yes, if you have a Titanium version and if it has a water separator filter on it.

The early versions didn't.

 

[MT_Diesel]

Thanks, guys. I do have the titanium with the separator filter. Thanks for the users guide as I only had the installation guide from the previous owner who installed it. Will let you know if I run in to issues but I expect it'll go fine. Thanks for the help.

 

[Rubenk]

Thanks, guys. I do have the titanium with the separator filter. Thanks for the users guide as I only had the installation guide from the previous owner who installed it. Will let you know if I run in to issues but I expect it'll go fine. Thanks for the help.

NP, most everything I found just said to drain 6oz or so from the separator, cycle the key a few times, then you're good.