Monitoring the S2000’s F20C Engine with Autometer!

If you read our previous article, our Canton oil pan had provisions for an oil temperature sending unit as well as a turbo drain which made this job a snap.  Modding a pan for a temp sending unit is the worst part of putting a temp gauge in and with Canton it’s easy!

We used Autometer’s adaptor, wrapping it in Teflon tape.  When using Teflon tape, be careful to wrap the tape so fragments can’t break off and travel through the oil system, possibly blocking a small critical passage somewhere. We have seen this happen before and the results are usually expensive!

The adaptor was screwed into the pan.

The sender was wrapped in Teflon tape as well.

And then the sender was screwed into the adaptor.

Now the sender is ready for wiring.


  1. The thread type should be called out as BSPT, to differentiate from BSPP. BPT is an incomplete designation. It is interesting to see the British influence on Japan carries through to this day.

    You are very bold drilling a vertical hole through your cowl into the driver’s compartment. Here in the northeast I would be very concerned about water intrusion. I’d be filling that grommet with RTV or some other type of sealant.

    1. I stand corrected, upon closer inspection, it looks like you may have a BSPP (parallel) connection that seals on the face rather than a BSPT connection that seals on the threads.

    2. It is actually not a vertical hole, it just looks that way in pictures and its near other OEM pass-throughs.

  2. I stand corrected, this looks like a BSPP connection that seals on the face rather than a BSPT connection that seals on the threads.

  3. I installed my Oil Pressure and other gauges the exact same way. I was feeling kind of insecure thinking that there could have been a cleaner way to do it (of course there is), but knowing that others have done the same makes me feel validated.

  4. Where did you guys get the 1/8″ bspt to -3 an adapter from? I am having a hard time finding one! If you have extra, can I buy it off you guys 🙂 I’m local to socal.

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