Princeton fuel probe

[peter anson]

I'd just like to back up Robbie and say that I found Princeton very good to deal with. I did have a problem with my first sender and must have just about driven them mad with my emails but they were very patient, always answered my emails and it was all sorted out eventually. For the past 3 years I have had very stable, reliable and pretty accurate readings from the probe.

I did have an odd problem after installing the probe, not with the probe itself, but with the fuel tank fitting. It would leak, but only when I went for a flight. The tank fitting was obviously the problem, but I think that in flight the fuel sloshing against that long probe was wiggling it in the tiny tank fitting. I eventually fixed it with bog rather than an oops.

Peter

[kevinh]

I eventually fixed it with bog rather than an oops.

Hi Peter,

To help educate me, can you elaborate on what a bog is?

Kevin

[caymancraig]

Hi Robbie, did u have a problem getting the fuel probe box open? I took the screws out but it almost seems to be glued together. I think I'm having a similar problem with my Dynon fuel gauge. After calibrating the Dynon unit it works great until I turn the master off From then on it reads zero gallons. I haven't calibrated the fuel probe yet that's why I asked about getting the box open .

Craig Mock
Turbo A/V

[Sonex1517]

Hey Craig

I did have to pop the box open but it wasn't bad.

What worked for me was to calibrate it without the yellow wire connected to the gauge. Once I calibrated it I connected the wire. Works great.


Robbie Culver
Sonex 1517
Chicagoland
N1517S

[peter anson]

To help educate me, can you elaborate on what a bog is?

Gosh Kevin, don't you know any technical terms? Sometimes known as DeSoto PR Compound, PR-1422 Class is a two-part, dichromate cured polysulfide compound for sealing fuel tanks, or more technically, BOG.

As you can see, it even looks like BOG.

Peter

[sonex892.]

Pete
Your bog work is an absolute work of art! Just noticed those additional inlets on your fuel selector are you planning dual aux fuel tanks?

Back on subject. I love the princeton sender. I use it with a digital readout on the velocity singles. I havent touched mine for 6 years. It is the most accurate fuel level indication of anything I have ever owned.

Steve
Sonex 892

[peter anson]

Hi Steve,
No intention of fitting dual auxiliary tanks. For a start it would be impossible to turn the fuel off, but more importantly it would mean changing the label and after you've gone to that much trouble to produce a beautiful label you don't want to do it all again.
I actually have considered fitting an auxiliary tank and think I would pump in via one of the fittings intended for the sight gauge. I know this is getting off the subject but have you had much use from your Auxiliary tank?
Peter

[9GT]

To help educate me, can you elaborate on what a bog is?

Gosh Kevin, don't you know any technical terms? Sometimes known as DeSoto PR Compound, PR-1422 Class is a two-part, dichromate cured polysulfide compound for sealing fuel tanks, or more technically, BOG.

As you can see, it even looks like BOG.

Peter

Not to be overly critical, but the teflon tape you have used on the fuel selector valve is a never, ever, ever, use item on any fuel lines or fittings. There are so many NTSB reports fatal accidents caused by fuel starvation as a result of using this its not funny. Use Tite Seal http://www.aircraftspruce.com/catalog/e ... sealit.php on the npt threads leaving the first two threads dry, and all the B on the flare fittings nuts go on 100% dry. http://www.aircraftspruce.com/catalog/e ... sealit.php

[9GT]

I eventually fixed it with bog rather than an oops.

Hi Peter,

To help educate me, can you elaborate on what a bog is?

Kevin

Never hear it called Bog before but in the RV community its called Pro Seal. Its nasty, sticky, smelly, and highly toxic. After building my tanks, I found many other uses for it throughout the build. It works extremely well. http://www.aircraftspruce.com/pages/cs/ ... /ps890.php

[peter anson]

Not to be overly critical, but the teflon tape you have used on the fuel selector valve is a never, ever, ever, use item on any fuel lines or fittings. There are so many NTSB reports fatal accidents caused by fuel starvation as a result of using this its not funny.

I get your point but like all sealants, if you only put the tape on the thread and don't have it overlapping the internal end of the fitting it's not going to get into the system. I have never found any traces of it in my fuel filter or gascolator.
Proseal is the same stuff, just a different brand.

Peter