As the tittle says... I dont know where I should install the sensor oh my Autometer ultra lite water temp guage... I dont want to tap a thread near the thermostat. I know that I saw a month ago a kind of adapter that you place on the rubber hose but on which hose I should place it... the one that goes to the thermostat or the on who is from the head to the rad...

Thanks for the help and if anyone have a picture of the installation I would appreciate that !

Mat

 

Matt, Im not sure if you could find one for sale but greddy makes an adapter that you could run in the coolant lines to the radiator.

Is all that came with it just a metal probe?

I cant remember are you using a factory radiator or are you using an aftermarket one? (you can tap the radiator if its aftermarket because its nice and boxy and made out of aluminum (anything metal would probly work).

or just look for a tube of aluminum with a proper diameter to fit inside the radiator hose and tap that, then cut your radiator hose line and fit the metal piece inside. If it leaks, bang the aluminum out so that where you are tapping for the probe is flat

If that doesnt work (for some reason) go to candian tire or somewhere and you could buy some extra radiator hose and see if you could somehow rig the probe to fit in there without it leaking

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Boltz &raquo;</TD></TR><TR><TD CLASS="quote">Matt, Im not sure if you could find one for sale but greddy makes an adapter that you could run in the coolant lines to the radiator.

Is all that came with it just a metal probe?

I cant remember are you using a factory radiator or are you using an aftermarket one? (you can tap the radiator if its aftermarket because its nice and boxy and made out of aluminum (anything metal would probly work).

or just look for a tube of aluminum with a proper diameter to fit inside the radiator hose and tap that, then cut your radiator hose line and fit the metal piece inside. If it leaks, bang the aluminum out so that where you are tapping for the probe is flat

If that doesnt work (for some reason) go to candian tire or somewhere and you could buy some extra radiator hose and see if you could somehow rig the probe to fit in there without it leaking</TD></TR></TABLE>

I have a PWR radiator.

Yeah it would be a good idea to weld a king of ''bung'' on the rad to make the sensor fit.

would it be better to install the sensor on the top of the radiator or at the bottom of it ?

I imagine that if the oem temperature sensor is before the thermostat ( correct me if I am wrong ) I should place the sensor on the top of the radiator right ?

 

Here's how I have mine set up. The Greddy adapter is 1/8 BSPT though so when I threaded my 1/8" NPT sender into it, it would leak. I took the adapter to NAPA and had them drill and tap it for one of my spare 3/8" NPT adapters which my 1/8" NPT sender screws into.

 

nice ! I think that I will just tap into the TOP of radiator or weld a bung on it. It will be cheaper than buy a Greddy adaptor...

 

Hey Yellowturbo....the picture above is how I did mine. <U>But</U> I didn't use a greddy adapter. What you an do is:

1.) Get a piece of pipe, cut to length, round the edges so they are not sharp etc.
2.) Braze (don't weld), the bung that came with the autometer gauge on the the piping from step 1. Make sure the sensor is not in the bung when you braze it.
3.) Insert the pipe in to hose like the above picture shows.
4.) Also, it is adviseable* to use a thin 1/2" thick piece of aluminum sheet metal and fold the ends over. Basically clamp the metal to the pipe and then fold the ends back over the clamps. This will help to prevent the clamps from pulling off. They shouldn't, but its a precaution.
5.) This can easily be done for less than $20.


Materials:
~3-4 inches of metal piping
the bung from your gauge
knife to cut the rubber hose
shop that can braze fittings
clamps

 

i just took the red part of the fitting, and stuck that in a rubber heater hose, than put a stainless clamp around it. and screwed the blue part into the red part. simple.

 

or go on ebay i think they are like 20-25 bucks, i think some knock off company makes them but so does weapon R and they are much cheaper then greddy

 

I just took out the bleeder screw on the upper radiator housing, tapped it out, and put it there. Works perfect w/ no leaks...

Chris

 

the fitting is too big to fit in there.... maybe with an adaptor...

 

There should be two fittings. One big, and one smaller (relative to the big fitting.)

 

Since you have a PWR, I would just weld a bung there or drill and tap for the fitting.

I think it would be better to have it at the top. The temperature through the radiator will be pretty even, but since heat rises you might as well do the top

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dunc &raquo;</TD></TR><TR><TD CLASS="quote">There should be two fittings. One big, and one smaller (relative to the big fitting.)</TD></TR></TABLE>

Exactly, the smaller of the two fit perfect.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BlueShadow &raquo;</TD></TR><TR><TD CLASS="quote">Here's how I have mine set up. The Greddy adapter is 1/8 BSPT though so when I threaded my 1/8" NPT sender into it, it would leak. I took the adapter to NAPA and had them drill and tap it for one of my spare 3/8" NPT adapters which my 1/8" NPT sender screws into.



</TD></TR></TABLE>


i did similar to this but made my own, about a 4" piece of pipe like stated above, but then i just tapped it, it was stainless and pretty thick, worked great , no cooling issues, or leaks.

now i have it in the upper head water inlet/outlet, just drilled and tapped the housing, pretty easy.

 

Just replace the temp sensor in the head with the Autometer one, it is right below the distributor. Then all you have to do is hook the engine harness back up to it and run an extra wire to the gauge and you are finished.

-Ryan

 

https://honda-tech.com/zerothread?id=699796
That was on a P72 upper radiator hose housing that sits closer to the EX side of the head. If your upper radiator hose housing sits closer to the IN side of the head, then I'd use the radiator hose adapter of sorts (GReddy or otherwise).

If it's just a simple 1/8" BSPT to 1/8" NPT adaptation, I just tap the threads with a 1/8" NPT tap.

It'll be a lot easier too to just use teh hose adapter since you won't have to completely drain and remove the radiator....just enough to allow you to remove the upper radiator hose. Not to mention cleaning out the radiator to remove the debris.