RX7FROMCAL

whats the best and easyest way yo hook up this gage. thanks

RX7FROMCAL

nobody in this forum has hooked up a temp gage, come on people , lol im not feeling the love here, lol

iceblue

Depends on the gauge. fc3spro.com has tempatures based on location to go buy.

Mine used 2 brass m/f adapters to screw into each other. I drilled and taped my pump housing just below the water thermo sensor behind the T-stat. There should be pics of it in my blog.

RX7FROMCAL

man i read all of your stuff , dude if you were in front of me now i would give u a standing ovation. great work. but nothing on water temp gage in your work, atleast i coundt see it, but thats not saying much , lol i suffer from crs syndrum= cant remeber ****. thanks for the good reading. keep up your great work man. again thanks

iceblue

I am sorry about that I realy thought I put a pic up there. I looked in it and took 2 pics that I found and circled in GREEN the items for you.

Here is the location I drilled and taped.


Here is the sensor prob that you screw into the back.

RX7FROMCAL

looks like u drill and tapped into the water pump housing?

iceblue

^ yes that is correct.

rotorforce

Yes, that looks to be exactly where I drilled and tapped mine as well.

alwayssideways

i used the drain plug in the front iron/housing (cant remember exactly which one) but its on the drivers side just infront of the engine mount. no drilling or tapping needed. i think the actual sending unit for mine didnt even need an adaptor.

NZConvertible

That's the worst place to put it. That drain is a branch off the coolant passage, so there's no flow over the sensor. It'll eventually read right, but it's response will be much slower than it is supposed to be.

I installed a digital temp gauge a little while ago, and the sender install didn't turn out quite as I expected. I decided to drill and tap one of the air pump bracket bolt holes, but because this was originally a blind hole (not open all the way through), once the sender was installed only the very tip of it was in the coolant flow (~1mm). As above, this would the gauge respond slowly, so I decided to plug this hole, and drill and tap the blank boss on the back of the water pump instead.

This time once I got the sender in I discovered it clashed with the thermostat, and unscrewing it far enough so that the thermostat fitted meant I had the same problem as before. Only the tip of the sender was exposed. So I went back to my original location, but I attacked the inside of the water pump with a die grinder to fully expose the sender to coolant.

IMO this is the ideal location for a temp sender, but only if you modify the pump housing as I did.

RX7FROMCAL

thanks for the pics man

HAILERS

allwayssideways...........the NZ is right about that drain plug not being a good place. Before I knew it was a deadend passage, I put one there. I had another in where the auxillary fan unit goes, and the difference in temps b/t the two is LARGE, because of the deadend passage not having any flow thru it.

And the NZ has one very rusty and thin water intake pipe on the back of his water pump housing. Ewwwwww! Only thing worse is blue and pink on an engine. PEWWWWWWWWWWW!

iceblue

hehe your lucky I like you HAILERS ;-)

NZConvertible

You should've seen it when I took the hose off, it was way worse. The nipple was mostly clogged with rust. It's been thoroughly cleaned out and the outside cleaned up with a wire wheel, and what's left is pretty solid and has plenty of length.

tjeter

I'm curious, on my greddy instructions which are in japanese, it shows that you have to plug the sensor in for the temp gauge in the factory position is this correct?

iceblue

all depends on the sensor prob.

theagavejazz

iTrader: (4)

cool, I've been trying to figure this out too...

NZConvertible

The sensor doesn't have to be in the stock location. Anywhere under the thermostat that exposes the sensor to coolant flow is fine.

-Ryan-

If I got an autometer water temp gauge... Could I just remove the factory sensor and install the new one there?

I feel like the biggest newb on this one, but i havent installed one before so I guess I am.

theagavejazz

iTrader: (4)

hate to threadjack but is there a hose I can use to hook up the gauge? They sell adapters to hook up the sender to a hose but which hose would I use?

NZConvertible

No, the stock sensor is very small and hardly any aftermaket sensors fit in its place.

-Ryan-

Could I drill that same location and tap a larger hole?
Or do you have a pic of where and how to install it.

Im looking for detailed info on where and how is best to install a water temp, oil temp, and oil pressure gauge if you can help.

iceblue

It is said that the best location for a water temp gauge is below the T-sat in the pump housing.

jdmsuper7

iTrader: (1)

Actually, the Autometer one does, I'm running mine there right now. Autometer is an exception though, my HKS oil/water temp gauge has a HUGE probe that is easily twice the size of the autometer one.

theagavejazz

iTrader: (4)

so will any hose give accurate readings? Which Autometer series will fit?