Gascolators in Fuel Injection Systems

[RickWoodall]

Yes i know two gascolators seems silly but here is my dilema.
I must have one to pass the regs in Canada.
VANS and AFP do not suggest one FWFWD due to potential leaks, vapour lock, blah blah. Fair enough. I can hook one up on a wing root but then the plumbing from both tanks have to make their way to the fuel selector then back out to the gascolator and then back. Silly and lots of plubing. Just seems one extra gascolator and some proper engineering would allow it to be low on each wing root, easy to get samples from (close to fuel drains) and is the least difficult. Cant think of a better solution. Most builders here just go one on firewall....but when AFP suggests not to.. $200 is the safety cost to do what they recommend and i am ok with that. Will tackle that in the next couple months and post some pics when figured out.

[frankh]

One gascolator South of the firwall drained thru the floor?....Thats what i had on my Zodiac and it worked fine.

Just a thought.

Oh and what exactly is a legal Gascolator north of the lower 48?...Zenair (makers of the Zodiac kits) sell a nice little 2" square welded up aluminium box with two inlet ports and a drain port in the bottom.

If you just need a wide spot in the line for a legal gascolator this may be better and has tabs on it so you cab pop rivet the thing directly to the floor.

I think I might even have one spare if you want it.

Its a whole lot more compact (and cheaper) than the Vans's monster gascolator

Frank

[frazitl]

I replaced the AFP filter supplied with Van's injection pump kit with an Andair gascolator. Basically same position with a drain through an inspection plate in the bottom of the fuselage. I added the inspection plate to make removing the bowl easy to check the filter etc. Looking at the Andair filter element, it appears to be about the same as the AFP filter element, and this gives me a very low point in the system to drain water.

My Mooney had an injected 540 with a gascolator behind the firewall too! Never got any water, but it did stop a little trash occasionally. See http://picasaweb.google.com/frazitl/...temWGascolator