I'm wondering what methods people have used to install their water temp sensor (I have an Autometer electric temp gauge btw). I'm toying with two alternatives:

1) Remove the ect switch and with the aid of an npt adaptor, install the temp sensor in its place

2) Find a rad hose adaptor that can accomodate the 1/8" npt sensor

I'd appreciate any feedback as I'd like to complete this last job on my car before the race season begins next weekend

edit - I forgot to mention that this is for a DC2

 

I drill and tap the neck of the coolant exit on the head with a 1/8th npt tap. Put a bit of honda bond on the threads and screw it in, clean and leak free install. I'll snap a pic tomorrow if I get a chance.

 

you can also buy a Blitz upper radiator hose with a small outlet for a sensor to clamp into. Easy to install and reverse

 

i don't think you'd want to remove the stock coolant temp sensor,as on the OBDI+ cars,isn't that only one?the ECU still needs a water temp reference.
either T off the stock location and keep the stock sending unit,or drill and tap somewhere else.
Chris

 

Sorry, I didn't make myself clear - I'm keeping the ect switch but replacing the ect sensor. It's a '97 itr but has a p72 chipped ecu with obd-1 conversion harness. Do you foresee a problem with this set up?


Modified by TPB at 4:17 AM 5/9/2006

 

Rather than risking throwing cel's I decided to have an adaptor fabricated and just mount the sensor in there. Not sure if the adaptors are difficult to come across in the US but in Canada few if any places regualrly stock them.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by George Knighton &raquo;</TD></TR><TR><TD CLASS="quote">
We are not to allow the deliberate promotion of rival sites in posts, although it's logical to assume that there might be occasional legitimate cause to refer to data on a rival site.
</TD></TR></TABLE>

Since George said that, I'll assume it's okay to link to a rival site for more helpful data on this subject.
http://www.roadrace-autox.com/...art=1

 

Thanks johng - that's pretty much what I'm doing!

 

http://www.greddy.com

Go to electronics and then to gauge accessories. I bought the 32mm adaptor for my Autometer electrical water temp gauge. I tapped into the upper radiator hose and that is where the sender goes. We then wired a ground as well as a 12v lead and voila the temp gauge is functional.

We did have to re-tap the adaptor for the Autometer fitting to fit correctly without leaks. That wasn't a problem. One last thing, make sure there is a ground from the gauge (per directions from Autometer) as well as a ground from the adaptor itself to a good ground source. We finally figured that the gauge wasn't working because the adaptor needed a grounding source to read correctly.

This was how we did it. There are a number of different ways but this was one quite simple to achieve what we set out for. Good Luck!

 

Interesting EleanoR. I'll make sure I ground the adaptor in case I don't get a reading. Thanks for the tip!

 

I have my sender upper radiator hose adaptor for sale. if you still need this let me know.