Hi Mark,
I have been using an EIS 2004 for about 6 years now. I have had no
problems.
Re EGT probes, although I fitted mine to the rear exhaust pipes, I never
refer to them and I am not sure if they contribute a lot. Perhaps useful
to troubleshoot a carburetor problem but I have never had that need. I
think you may do just fine without them and it saves some wiring.
I fitted the gasket type CHT probes under two rear cylinder head nuts. I
am not sure why the CHT probes were not supplied to you. GRT's website
at http://www.grtavionics.com/model_2004.htm says they are included. I
connected my EIS coolant temperature wire with a faston type connector
to the Rotax sender on the lower rear of cylinder no. 3. The oil temp
sender has a similar connector.
As I have mentioned before, I recommend GRT's excellent fuel flow and
totaliser option. I also have a low fuel pressure sender on the
auxiliary input - this is intended to give me few seconds warning before
the engine stops if the filter blocks or whatever.
Wishing you many smooth landings.
Cheers, John
N262WF, mono XS, 912S
Mooresville, North Carolina
****************
ORIGINAL MESSAGE
From: Martin Tuck <MJKTuck@cs.com> <mailto:MJKTuck@cs.com>
Subject: Europa-List: Grand Rapids EIS 2004 (Rotax)
Hi Folks,
On the advice of some of you on this forum, I went with the Grand Rapids
EIS for the Rotax 912 as part of my panel upgrade.
A few questions though to those who have already fitted it.
1) Any problems I should look out for. Any gotchas?
2) It came with two EGT probes but nothing to say where they should be
fitted. I assume you drill a hole in the exhaust manifold but where. Is
it wise to drill holes in situ as swarf may end up in the exhaust
valves. I've gone all this time with no EGT indication so I'm inclined
not to fit these. What have others done?
3) It looks like you have to use GRT CHT probes (not supplied, Grrr). I
thought the GRT website said the unit used the Rotax senders or maybe
that's just oil temp and pressure senders?
Any help would be appreciated.
Regards, Martin Tuck Wichita, Kansas
|