What temperature?

[Kiwivan]

Again a water related question
Normally my gauge sits at a quarter to half way on the temperature gauge.
When idling for about 15 minuets after a hot run it can go up to 3 quarters.
About halfway it is sitting at 93deg and at 3 quarters it is just over 100deg.
And remember that is when it is idling after a long hot run(hot day)
I have checked this with a digital thermometer.
Running a 88deg thermostat.
And I have converted my system to a recovery one,including changing the radiator cap
Does this seem okay to everyone.
Have tried to find information but I think my best bet is experience.

Cheers in advance
Kiwivan

[damienengland]

Hmm, i wouldn't be happy with over 100 degrees when idling. I have an 82 deg thermostat (180degF) which works well for me. Do you have a shroud around your radiator?

[Valencia]

Hmm, i wouldn't be happy with over 100 degrees when idling. I have an 82 deg thermostat (180degF) which works well for me. Do you have a shroud around your radiator?

This would be correct

[wbute]

Seems too hot to me. It shouldn’t get to 100. Try a cooler thermostat and make sure you have a shroud as mentioned.

- - - Updated - - -

Is the digital thermometer measuring the coolant temp or the temp of the air being blown through the core?

[Innuendo]

13lbs Radiator Cap

[Kiwivan]

No shroud as told non aircon didn’t need one.
Thermostat cover is what I used the laser pointer at.
Normally the girl runs at about 94deg.
Thought it was a 15lb cap but will check.

Cheers Kiwivan

[wbute]

It shouldn’t get that hot. Either the rad is blocked up, water pump isn’t doing the job, thermostat is wrong/not working or you need a shroud. If it’s hitting 100, if you didn’t have coolant it would be boiling it’s head off.

[axistr]

If he has a good working cooling system with a 13lb cap it will not boil until it reaches over 109c.

As suggested I would run an 80-82 thermostat for starters, but some of your radiator tubes could be partially blocked. I have found that if 10% of the tubes are blocked on a hot day they generally start to run a bit hotter than normal. I wouldn't have a car without a good fan and shroud. Although what part of NZ are you from , you probably wouldn't even need a radiator if your deep down south.

[wbute]

True, Axistr, the cap will lift boiling point too. The reason I say 100 is too hot, you can run a tractor at full load all day in the summer, with a capillary tube temp gauge, if the cooling system is correct, it will not go over about 92. 100 is way too hot. There is a problem either with your remote gauge or the cooling system.

[axistr]

True, Axistr, the cap will lift boiling point too. The reason I say 100 is too hot, you can run a tractor at full load all day in the summer, with a capillary tube temp gauge, if the cooling system is correct, it will not go over about 92. 100 is way too hot. There is a problem either with your remote gauge or the cooling system.

I agree and the HQ-HZ were designed to run between 85-95 with a 82 thermostat. Its interesting that when the VN commodores were introduced they used a 92-94 thermostat and the computer didn't trigger the low speed electric fan till 102 degrees. The thermostat opening temperatures gradually increased after the HZ trying to reduce emissions. I don't agree with the temps that the later cars run at but its uncommon to see cars broken down on the hwy and overheating these days.