Today's Message Index:
----------------------
1. 06:04 AM - Re: EIS 4000 connections (h&jeuropa)
2. 06:53 AM - Re: Re: EIS 4000 connections (Dan Billingsley)
3. 06:39 PM - Re: EIS 4000 connections (ruruny@aol.com)
Message 1
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| Subject: | Re: EIS 4000 connections |
Dan,
No what I was trying to say is to use the CHT thermocouples supplied by GRT instead
of the VDO sensors that came on the engine. The CHT thermocouples came with
your EIS if you told them it was for a Rotax 912 / 914 (if you didn't, you
need to get them from GRT). They look like a large solder lug and each has a
red and a white wire attached.
They are to be bolted to the cylinder head at the same place as the Rotax supplied
VDO sensor. Either use the VDO sensor to bolt them to the head (strictly
as a bolt, not connected as a sensor) or use the metric bolt GRT supplies for
that purpose.
They are not spark plug gasket CHT thermocouples. Spark plug thermocouples do
not work well on a 912/914 since the plug is recessed into the head and therefore
difficult to fit a gasket under.
There is a diagram on Figure 5b-Connector B Wiring in the EIS manual showing where
to connect the red wire and where to connect the white wire for each sensor.
Use the crimp on connectors supplied by GRT to make the connections. So,
for the CHT sensor on cylinder head 2, connect the red wire from the sensor to
the red wire on pin 10. Likewise the white wire for CHT 2 goes to pin 22.
For cylinder head 3, the red goes to pin 8 and the white goes to pin 20.
There is also a note (page 14, bottom of section 5.2.8) about what to do with unused
CHT inputs (in your case CHT 1 & 4). To avoid bad readings, connect the
red & white wires together to make a "short".
Doe this make sense?
Jim Butcher
Europa XS 914
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=324904#324904
Message 2
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| Subject: | Re: EIS 4000 connections |
Jim,
Thank you very much for the detailed response. After quite a bit of searching
and scratching for the information, I got it figured out between this group and
another site I belong to. My trouble originated due to the EIS being part of the
Kitfox kit I purchased from a second party. Not all the parts or information was
there, so I had a handicap going into it. What threw me thinking the ring
thermocouples went over the spark plugs was the install manual states that. They
did not, however, diferentiate this between engine types. Thanks again for the
information to all who responded.
Dan B
Mesa, AZ
----- Original Message ----
> From: "h&jeuropa" <butcher43@att.net>
> To: rotaxengines-list@matronics.com
> Sent: Wed, December 29, 2010 7:02:08 AM
> Subject: RotaxEngines-List: Re: EIS 4000 connections
>
>
> Dan,
>
> No what I was trying to say is to use the CHT thermocouples supplied by GRT
>instead of the VDO sensors that came on the engine. The CHT thermocouples came
>with your EIS if you told them it was for a Rotax 912 / 914 (if you didn't, you
>need to get them from GRT). They look like a large solder lug and each has a
>red and a white wire attached.
>
>
> They are to be bolted to the cylinder head at the same place as the Rotax
>supplied VDO sensor. Either use the VDO sensor to bolt them to the head
>(strictly as a bolt, not connected as a sensor) or use the metric bolt GRT
>supplies for that purpose.
>
>
> They are not spark plug gasket CHT thermocouples. Spark plug thermocouples do
>not work well on a 912/914 since the plug is recessed into the head and
>therefore difficult to fit a gasket under.
>
> There is a diagram on Figure 5b-Connector B Wiring in the EIS manual showing
>where to connect the red wire and where to connect the white wire for each
>sensor. Use the crimp on connectors supplied by GRT to make the connections.
>So, for the CHT sensor on cylinder head 2, connect the red wire from the sensor
>to the red wire on pin 10. Likewise the white wire for CHT 2 goes to pin 22.
>For cylinder head 3, the red goes to pin 8 and the white goes to pin 20.
>
>
> There is also a note (page 14, bottom of section 5.2.8) about what to do with
>unused CHT inputs (in your case CHT 1 & 4). To avoid bad readings, connect the
>red & white wires together to make a "short".
>
>
> Doe this make sense?
>
> Jim Butcher
> Europa XS 914
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=324904#324904
>
>
>
>
>
>
>
>
>
>
>
Message 3
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| Subject: | Re: EIS 4000 connections |
Dan,
Attached is a pic of the CHT sensor from GRT installed as Jim described.
Note the bolt
holding the GRT ring terminal on. It looks like one black wire but that is
heat shrink, there is
a white wire and red wire in there.
The existing VDO CHT sensors removed are not wasted. Look at the blue cool
ant hose.
You see the fitting that I got from GRT tapped into the hose held in with
clamps. It is designed
to accept one of those VDO CHT sensors for the EIS to measure coolant temp
.
If you have sensors for a different type of engine installation, call GRT
and see if they will do a
trade for the proper sensors.
Brian Unruh
www.701builder.com
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