Heat gauge reading?

Hi guys im new.first post.problem.local running around car is fine.but when I drive long distance it heats up.with the ac on it heats up much faster.so tested radiator seems blocked.could c the fins blocked.replaced it with a 3 core gtr aluminium radiator.did get to drive it long distance again.but I wana know wer the heat gauge should be?at the moment its on dead center when its on operating temperature.plz help.

Did I do something wrong?maybe I.shud have introduced myself first?or I posted in the wrong place?im new to the forum so if I did something wrong excuse me.guys again after my replacement off the radiator I did not get a chance to drive long distance.jst curious if my car is reading normal tem p if its in the middle.and the coolant pipes seems to be filled with pressure but I can squeeze them.not sure if normal.answers will be highly appreciated.

No you did not do anything wrong, it was the festive season and the forum is not as active as it was in the old days, dead center is right, just for in case, replace the sensor although it was showing you that it was starting to overheat, so it should be fine.

Welcome!

replace the radiator withn a bigger one. Did you check the thermostat?

Thanks guys.iv replaced thermostat which I got from nissan.water pump is good.Viscous fan good.I counted the lines in the radiator there is 48 out off that only 12 was clear.rest blocked solid with rust kinda stuff almost looks like rusted metal flakes.But I dont understand why only on the freeway it overheated and with ac on its worse.after I replaced radiator I didnt get to drive long distance.wil do so this weeknd.wer can I find a new temp sensor?

Dont know how to post pics.would have posted pics off radiator disassembled.new radiator is 3 core.aluminium.actually for a gtr R33 but fitted good on my car.are these aluminium radiators any good?could not find a stock rad anywer!!!!!

The alu radiators are better than the ones that came out with ours, no problem at all. The temp sensor you can find at any midas or autozone, just take a sample, think the best make is "Echna" or something like that, cant remember the right name.

water temp sensor for the ecu can be bought at midas if they dont have for a ca18 ask for a vg30 out of the 300zx it will be red

Thanks guys I will go out tomorrow and get 1.will updat once iv taken a long drive this weekend

Guys wher can I buy a viscous clutch for the ca18det.mine works but jst twt id change it to have peace of mind

as far as i remeber they are rather expensive will be cheaper to put 2 12inch electric fans

Car is stock.wana keep it that way.and it isnt a problem but since ive redone my cooling system wud be nyc to get a new viscous inn.any idea wer I can.buy 1?

As far as I can remember the 1tonner/skyline has the same viscous.

Take a sample... http://hot4cold.co.za/viscous-fan-clutches/

Hi guys so I drove the car this weekend all seems to be good.no heating up.but the radiator pipes looks like they going to burst.they also quiet hard.is this normal?but heat gauge sits jst below half way.is it normal for radiator hoses to get hard ?

Thanks draco will have a look at those viscous fans.

Yes but not excessively hard, if it starts swelling over the normal amount either the pipes are old and needs to be replaced or there is still a heat problem, the fact that your gauge reads normal indicates that things should be normal. Remember these cars are old and the pipes took a lot of beating, especially because you had heating problems.

To be safe, replace the water temp sensor and the pipes.

Pipes definitely needs to be replaced from wat I can c.been to nissan.top is R800 and bottom almost R1000 bit steep for 2 pipes.been to the spares shop guys tell me pipes are fine no need to replace them.but I insisted I wana buy new.they dont have stock.tried everywhere!!!iv checked the pipes on my np200 and even my mums almera pressure and hardness seems to.be the same on my sx.but still have that doubt in my head.

My the car didnt actually over heat to.the red mark I stopped it b4 it goes ryt up.iv driven the car few times now no.heating problems.infact its just below the halfway mark(4th line).so most part off me is happy jst wana know if my pipes are normal pressure.every time I drive the car nowdays my eyes is on.the heat gauge lol.and everytime I stop the car I open the bonnet to check a the pipes thats how paranoid I am about these pipes.can u point me to a cheaper direction?nissan is too expensive

You won't get the specific pipes unless you import or buy from the stealers(nissan), I went to several places and took what I could make work, as long as there is no restriction just connect A to B.