fully agree.
fuel pressure sensor should be a "must". We use a sensor from Bosch
connected to a red LED (cost EUR 20). Simple and very effective. Same is
standard on all Katanas & Dimonas.
Klaus
Carl Pattinson wrote:
> It is worth mentioning is that fuel filters and gascolators are the
> last barrier to dirt before the fuel gets to your engine. If the fuel
> was clean then in theory you wouldnt need them. And if your fuel tank
> is full of debry then no matter what you do there is likely to be
> trouble sooner or later. The last aircraft we built never suffered
> from fuel blockages (in 200 hours of operation) because we (a) cleaned
> and flushed the fuel system prior to operation and (b) made sure all
> the fuel we used was filtered into the tank (via a simple funnel/
> gauze filter). Yes, we did change the fuel filter regularly too. We
> had no problem with water either because we always made sure the tank
> was full of fuel when it was hangared (the main cause of water is due
> to condensation within the fuel tank during storage). Incidentally a
> full tank is much less of a fire hazard than an empty one ! One
> worthwhile component that we have added to our fuel system is a fuel
> pressure guage. This enables a check on the state of the fuel delivery
> system prior to take off. Any reduction in the fuel pressure indicates
> the likelyhood of the filters clogging up, long before it becomes a
> serious problem. The fuel pressure sender is connected to a Grand
> Rapids Technologies EIS and is programmed to alarm if the pressure
> drops below a certain value. Carl PG-LABS ----- Original Message -----
>
> From: DJA727@aol.com
> Cc: georgec@sncorp.com ; jas56d@msn.com ; Mv727cap@aol.com
> Subject: Fuel system changes
> I am getting ready to install the fuel tank and am looking
> at changes to the system. As a new builder, I am not 100%
> familiar with some of the things mentioned on the internet.
> Specifically, the fuel drain mod I have seen mentioned is
> one of those things. Here is what I am planning to do:
>
> On the 1/8 inch threaded holes on the output fittings from
> the tank, I will install a fitting to a fuel hose running to
> a quick drain valve for each tank - reserve and main.
>
> I will install a short section of hose out of the output
> fittings, then to an adapter fitting to transition to solid
> aluminum lines to the selector valve and to the firewall.
>
> Since I will use both 1/8 inch feemale holes on the output
> fittings, (F09C) I will not have the clear tube for fuel
> level check. I will instead use a gage with a possible
> flexible dip stick for a gut check on the fuel level.
>
> I am thinking that I might put in 2 gascolators, but after
> reading other's stories I would install one Andair
> gascolator after the fuel selector valve.
>
> The selector valve would probably get mounted in a more
> convenient place -- like on the top of the center console.
>
>
> These are ramblings of a new builder. I like to be able to
> drain fuel from the lowest point of the tank -- unlike my
> Twin Comanche which drains the lowest point of the fuel
> system. With this setup, both tanks can be drained directly
> with the port for the drain valve being at the low point of
> the output valve.
>
> Back to work,
>
> Dave
>
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