Today's Message Index:
----------------------
1. 09:14 AM - Re: Re: capacitive fuel probes (was: engine loping) (thomas sargent)
2. 09:33 AM - Re: Re: capacitive fuel probes (was: engine loping) (Matt Dralle)
3. 09:51 AM - wheel shimmy fixed (thomas sargent)
4. 01:37 PM - Re: Re: capacitive fuel probes (was: engine loping) (Brian Alley)
5. 11:07 PM - LED Nav Lights (Robin Marks)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: capacitive fuel probes (was: engine loping) |
Matt:
Princeton probes again:
Are yours still working? Mine now seem to show nearly full all the time.
The left tank had only 7 gallons in it this morning, and it is still only
slightly off it's full position. I guess I have no choice but to try and
re-calibrate.
--
Tom Sargent
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: capacitive fuel probes (was: engine loping) |
Well, at 95+ hours TTSN now, and after the third calibration attempt at about 40
hours, the Princeton Probes have actually been working well. They read "full"
until I get to about 15 gallons remaining due to the slope of the tank, but
then from 15-0 they've read pretty well.
That all being said, about a week ago the right tank started reading 17-18 when
full. I noticed this on a couple of flights/fillups. Then, after the last fillup
it was reading 21 again as it should. So, I was all ready to go through
the calibration again on the right tank, but now, it doesn't seem to need it.
Now, one point of interest. I normally always fill up at my local airport. About
a week ago - and just before I noticed the problem - I filled up at a remote
airport. When I went to start the engine, I had a heck of a time keeping it
running at first. I wondered if there was some water in the fuel I had just
pumped. I had started pumping on the right tank which was the same tank that
had the sender issue. I used a fuel checker on the drain, but didn't see any
water, but it could have been already gone by then. Anyway, the point is, I'm
suspecting that perhaps I got a little bit of water in the tank and that this
caused the wonky sender output for a while.
-
Matt Dralle
RV-8 #82880 N998RV
http://www.mattsrv8.com - Matt's RV-8 Construction Log
http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel
Status: 95+ Hours TTSN - Enjoying Every Minute...
At 09:11 AM 9/10/2010 Friday, thomas sargent wrote:
>Matt:
>Princeton probes again:
>Are yours still working? Mine now seem to show nearly full all the time. The
left tank had only 7 gallons in it this morning, and it is still only slightly
off it's full position. I guess I have no choice but to try and re-calibrate.
>
>--
>Tom Sargent
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | wheel shimmy fixed |
Just a note for any one who may be having a wheel shimmy problem. (My
apologies if everybody already knows this!)
My 6A only has about 7 hours on it. It had a pretty bad shimmy only upon
landing after it slowed down a lot. I never determined if it was in the
main gear or the nose gear. I tried reducing the nose wheel pressure as
some one advised me, but that didn't work. Joe at Van's told me their 8A
had a similar problem. It was fixed by reducing the main wheel pressure to
25 - 28 psi and the nose gear to 30 - 35. I originally had about 35psi all
around. I tried his suggestion and have had no shimmy on the last 2
landings. An easy fix.
--
Tom Sargent
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: capacitive fuel probes (was: engine loping) |
Tom, water and other contaminates
can foul the probes and cause false
readings. Have you found any water
when sumping your tanks? A sliver
of aluminum or any thing that conducts
can change the capacitance of the
probe and this does cause the reading
To be nearly full regardless of the fuel
Quality in the tank.
Sent from my iPhone
Brian Alley
carbonfibercomposites.net
304-395-4932
On Sep 10, 2010, at 12:11 PM, thomas sargent <sarg314@gmail.com> wrote:
> Matt:
> Princeton probes again:
> Are yours still working? Mine now seem to show nearly full all the time.
The left tank had only 7 gallons in it this morning, and it is still only s
lightly off it's full position. I guess I have no choice but to try and re-
calibrate.
>
> --
> Tom Sargent
>
>
==========================
=========
==========================
=========
==========================
=========
==========================
=========
>
Message 5
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
For some time I have mentioned the =93discount=94 way I was going about add
ing
LED Nav lights to my RV-8A build. After having spent $220 on my first set o
f
LED=92s for the -10 (which still required modifications
http://painttheweb.com/painttheweb/rv-10/Lights_LEDHID.aspx ) I decided to
fabricate some Red/Green Nav lights out of Auto parts. The lights were
purchased on eBay for well under $10.00 each. The sockets were maybe $3.00
each and the Red Green Mirrored plexi was about $8.00 delivered. I think
they turned out great. They are definitely brighter than my -10 Nav lights
and many people comment on how noticeable my -10 nav lights are on the
ground and in flight.
Here are a few photos of the Nav lights installed. Note these are older Van
s
wing tips so we had to cut away the corners and replace them with aero tips
.
Photos here:
http://picasaweb.google.com/marks.robin/RV8AN880EE#<http://picasaweb.google
.com/marks.robin/RV8AN880EE>
Robin
RV-4 Sold
RV-6A Sold
RV-10 170 Hours
RV-8A Flying by years end (or else!)
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|