Gascolator location, Rotax mount

Discussion for builders, pilots, owners, and those interested in building or owning a second generation Sonex or Waiex.

Gascolator location, Rotax mount

Postby Murray Parr » Tue Dec 25, 2018 7:30 pm

Any thoughts on where to install a gascolator? The Rotax mount gets in the way if you want to be able to drain the water trap so I am thinking of running a remote fuel drain. Has anybody done this or have any ideas on how best to achieve this? Another thought I had which would be simpler, is to have the gascolator inside the cab just near the forward wing spar and have the drain go out through the floor but I'm not sure if that is acceptable practice.
Murray Parr
WXB0015
Rotax 912ULS
MGL Explorer Lite
First flight May 6/23
RV9 builder (Sold)
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Re: Gascolator location, Rotax mount

Postby wlarson861 » Wed Dec 26, 2018 1:41 am

I would not consider bringing the gascolator behind the firewall. If it develops a leak it's now in the cockpit plus the extra fuel line running through the cabin exposed to damage. Best to find a place on the firewall and run a remote drain if you must.
Bill Larson
N861SX
Sonex, polished, tail wheel, Generation 4 Jabiru 3300
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Re: Gascolator location, Rotax mount

Postby sonex892. » Wed Dec 26, 2018 6:51 am

Hi Murray
On my Sonex a Jab 3300. I welded a simple bracket to the engine mount to support the gascolator. The drain potrudes through a hole in the cowl.
Image

On my previous build, a Sonerai. There was a lack of space on the engine side, I mounted the gascolator to the firewall, cockpit side. Since the gascolator was mounted a couple of hundred mm above the floor. I used a tube from the bottom of the gascolator to the drain valve on the floor. It worked fine.

Steve
Sonex 892
Steve
Lazair kit 1981 sold
Sonerai 2LS plansbuilt 2003 sold
Sonex kit 2010
Sonerai 2LS project rotax 912
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