> Has anyone used the Rotax supplied probe (the one in
> the head) successfully with a VDO gauge? If so, will
> it hook directly to the VDO gauge, or does it require
> some sort of adapter? What, if any, difference should
> I expect in reported temps? Any help is greatly
> appreciated...
Here on the eastern side of the pond the Rotax engine
comes with four VDO instruments (voltmeter, oil pressure,
oil temp and ch temp - the last two are the same).
The VDO instruments are designed for the Rotax senders (or
rather I suppose the senders are designed for the VDO
instruments).
ACS sell a much cheaper oil pressure sender. The
temperature senders in the Rotax there are three - the one
used for oil is the same as the one used for CHT - are
metric and there isn't much of a choice when replacing them.
If you want water temp (rather than cylinder head temp)
then use a imperial thread sender designed for VDO and
either tap it into the top water reservoir, or into a
T-piece on the pipe out of the reservoir.
Richard Holder
G-OWWW High Cross
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