Today's Message Index:
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1. 10:02 AM - Lightning Web site hacked!!! (flylightning)
2. 03:31 PM - Trobleshooting a temperature reading. (flylightning)
Message 1
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Subject: | Lightning Web site hacked!!! |
To all,
Sorry for any inconvenience's that have occurred, but the Lightning Web
site was hacked last week-end and needed to be shut down.
We are slowly getting things recovered and back online. But as you may
notice it is current as of 2010, not good.
So we are here and you can call us.
If you must email you can use Nick@flylightning.net or
Mark@flylightning.net , but if you email Info@flylightning.net it will
get lost in cyber space.
Please give us a few days to get this working again as normal.
Thanks
Nick Otterback
Arion Aircraft LLC
Message 2
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Subject: | Trobleshooting a temperature reading. |
Recently during some flight testing I noticed an odd reading on the EIS
of one of our LS-1s. About 30 minutes into my flight the oil temperature
had gone to 350 and stayed there.
I do check it regularly during flight testing so I knew it hadn't
slowly gone up as if there was a problem. Also my oil pressure was right
around 50 psi so it must be an error.
With the sending unit disconnected the EIS from GRT will read 59 and
will never come up, so if its 80 out and your oil temp is 59 when you
climb in to start the wire is probably disconnected.
IF the wire should wear thru and ground out on the engine block it will
go to the other end of the spectrum. Mainly because the probes work thru
resistance and than give and indication.
So in this case my oil temp probe must have been seeing different
resistance hence the higher temp. Sure enough the wire had been rubbing
on the bottom of the last cly head and worn straight thru to the wire.
Cut the wire out and installed a new one and problem solved, oil temp
around 210 after a WOT climb to 5.5k and than 185 after 15 minutes of
cruising around, not bad for a new motor.
So I guess the lesson learned is look at your indication and cross check
other things in that system, had the oil pressure been 0 or really low I
would have suspected a serious problem. Since it wasn't I simply landed
normally and went to looking at the probe.
On to a different probe for fun is the oil pressure unit on the front of
the 3300. This is a VDO unit which will sometimes have two lugs. One
says G for Gauge, the other W for work or in normal speak a Hobbs.
If you are hooked up to the W the EIS will read 76psi, if it is simply
disconnected 0. Have had this hooked up wrong on a few occasions to find
a 80psi reading on a first start.
If the unit should go bad during flight, it will usually start reading
high than eventually read 76 all the time. Should it go the other way
you have a problem.
I guess the short story of the oil pressure probe is that if it is
connected wrong or goes bad it will normally always go high. IF it goes
the other way you probably have a problem.
Thanks for reading.
Nick Otterback
Arion Aircraft LLC
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