REFLECTOR: Dynon fuel pressure

[John Tvedte]

Well - GRT offerd a Measurement Specialties MSP300-100-P-4-A-1  -

http://www.meas-spec.com/downloads/MSP300.pdf

Pretty sure this is good to 100psi - looks like part # nomenclature has changed.

Available from Digikey. For example: MSP3101P4A1-ND

John

-----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On Behalf Of Andrew Judge
Sent: Wednesday, April 04, 2012 12:03 PM
To: 'reflector at tvbf.org'
Subject: Re: REFLECTOR: Dynon fuel pressure

Add me to that list. High pressure FS always dies and fluctuates. Also add thee EGT probes. They die too.

What's a good replacement for the fuel sensor for an injection engine?

Andy

----- Original Message -----
From: Douglas Holub [mailto:douglas.holub at gmail.com]
Sent: Wednesday, April 04, 2012 12:59 PM
To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
Subject: Re: REFLECTOR: Dynon fuel pressure

Same with mine. The oil pressure is working fine but I need to replace the fuel pressure sensor.
----- Original Message -----
From: "John Dibble" <aminetech at bluefrog.com>
To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
Sent: Wednesday, April 04, 2012 12:20 PM
Subject: Re: REFLECTOR: Dynon fuel pressure


> Thanks.  I replaced mine as well.  It's nice to know what the problem is.
> My VDO oil pressure sensor has worked perfectly.  I wonder what the
> difference is.  Different mechanism?  Different pressure range?  Gas
> affects the sensor and oil doesn't?
>
> John
>
> On 4/4/2012 10:48 AM, Laurence Coen wrote:
>> John,
>>
>> I have a VDO fuel pressure gage that acts the same way.  I'm on my
>> second sender and opened the old one to see what was inside.  It's a
>> pressure operated rheostat and apparently the wiper arm starts making
>> poor contact with the wire wound resistance over time causing a false high reading.
>> It's a piece of junk in my opinion.
>>
>> Larry Coen
>> N136LC
>>
>> --------------------------------------------------
>> From: "John Dibble" <aminetech at bluefrog.com>
>> Sent: Tuesday, April 03, 2012 9:36 AM
>> To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
>> Subject: Re: REFLECTOR: Dynon fuel pressure
>>
>>> I'm planning to relocate my oil VDO sensor to the engine where it's
>>> supposed to be and was also concerned about vibration.  What are you
>>> using for your connection?
>>>
>>> My 2 terminal VDO fuel pressure sensor also exhibits strange readings.
>>> When I start the engine it always reads correct at 7 psig (carburetor).
>>> Then after 30 minutes or so, it often runs 11-15 and sometimes up to
>>> 25 psig.  The readings are not very stable, so I don't believe them.
>>> I think the wires may be bad.
>>>
>>> John
>>>
>>> On 4/2/2012 9:52 PM, Brian Michalk wrote:
>>>> Yes, VDO makes I thought all of their sensors in ungrounded and
>>>> grounded versions.  I have a few of them on the plane for oil
>>>> pressure and fuel pressure, which for me is 45PSI.
>>>>
>>>> None of mine are hard mounted to the engine.  I've heard that the
>>>> vibration can cause them to fail at the neck.  The orifice is a few
>>>> thousandths in diameter, really small, so if it does break off it
>>>> won't flow very much.
>>>
>>> _______________________________________________
>>> To change your email address, visit
>>> http://www.tvbf.org/mailman/listinfo/reflector
>>>
>>> Visit the gallery!  www.tvbf.org/gallery user:pw =
>>> tvbf:jamaicangoose Check new archives: www.tvbf.org/pipermail Check
>>> old archives: http://www.tvbf.org/archives/velocity/maillist.html
>>>
>> _______________________________________________
>> To change your email address, visit
>> http://www.tvbf.org/mailman/listinfo/reflector
>>
>> Visit the gallery!  www.tvbf.org/gallery user:pw = tvbf:jamaicangoose
>> Check new archives: www.tvbf.org/pipermail Check old archives:
>> http://www.tvbf.org/archives/velocity/maillist.html
>>
>
> _______________________________________________
> To change your email address, visit
> http://www.tvbf.org/mailman/listinfo/reflector
>
> Visit the gallery!  www.tvbf.org/gallery user:pw = tvbf:jamaicangoose
> Check new archives: www.tvbf.org/pipermail Check old archives:
> http://www.tvbf.org/archives/velocity/maillist.html

_______________________________________________
To change your email address, visit http://www.tvbf.org/mailman/listinfo/reflector

Visit the gallery!  www.tvbf.org/gallery user:pw = tvbf:jamaicangoose Check new archives: www.tvbf.org/pipermail Check old archives: http://www.tvbf.org/archives/velocity/maillist.html
_______________________________________________
To change your email address, visit http://www.tvbf.org/mailman/listinfo/reflector

Visit the gallery!  www.tvbf.org/gallery user:pw = tvbf:jamaicangoose Check new archives: www.tvbf.org/pipermail Check old archives: http://www.tvbf.org/archives/velocity/maillist.html