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How hot is too hot? #1633858
12/07/2019 16:28
12/07/2019 16:28
Joined: May 2017
Posts: 101
Vinisce
D
Dorian Offline OP
On a journey
Dorian  Offline OP
On a journey
D

Joined: May 2017
Posts: 101
Vinisce
Greetings,my 16v is starting to reach the next line after 90c(it has no number but I think it is 100c) often when I drive in heavy traffic. Is that too much? I tried to add some water in the expansion tank and after just half a liter it started overflowing from the cap,which means coolant was on max. Fans are working normally from what I can tell.

Re: How hot is too hot? [Re: Dorian] #1633863
12/07/2019 18:07
12/07/2019 18:07
Joined: Dec 2005
Posts: 19,925
North wales
pinin_prestatyn Offline
Forum veteran
pinin_prestatyn  Offline
Forum veteran

Joined: Dec 2005
Posts: 19,925
North wales
I think that’s normal temps. Cars run hot!



Coopless!
Re: How hot is too hot? [Re: Dorian] #1633865
12/07/2019 18:26
12/07/2019 18:26
Joined: Dec 2005
Posts: 32,269
Hemel in the Hempstead
barnacle Offline
Club Member 18 - ex-Minister without Portfolio
barnacle  Offline
Club Member 18 - ex-Minister without Portfolio
Forum Demigod

Joined: Dec 2005
Posts: 32,269
Hemel in the Hempstead
16v should run with a water temperature of 79-84c at the thermostat. The fan comes on at 85c at the radiator, but by that time the ECU thinks the water is at 99c. In stationary traffic in hot weather, the fan generally holds the temperature at 103c.

The gauge is not to be considered authoritative, but I won't worry at an indicated 100 in traffic, *if* it drops back once you're moving. On the NA, the oil and water are at close to the same temperature due to the intercooler behind the filter, so that's another clue; again, expect 90-100c.

Neil


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Re: How hot is too hot? [Re: barnacle] #1633866
12/07/2019 18:36
12/07/2019 18:36
Joined: May 2017
Posts: 101
Vinisce
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Dorian Offline OP
On a journey
Dorian  Offline OP
On a journey
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Joined: May 2017
Posts: 101
Vinisce
Thanks a lot for the reply,car didn't move past 103c from what I saw,and of course when I started to move temp started to get down.

Re: How hot is too hot? [Re: Dorian] #1633975
16/07/2019 19:52
16/07/2019 19:52
Joined: Dec 2014
Posts: 377
uk
OnlyItalian Offline
Making a profit
OnlyItalian  Offline
Making a profit

Joined: Dec 2014
Posts: 377
uk
If the middle mark is 90 and the max mark is 130 then the 3/4 mark must be 110. My vis has been just past the 3/4 mark on track on a hot day with no issue although I did ease off for a lap before returning to paddock.

Probably wouldn't want to turn the engine off at that temperature to avoid heat soak. When I returned to paddock I checked the temp after a couple of minutes and the temperature had crept up again. Ran the engine breifly to circulate the water and watched it come down again.


"Proud owner of LE141 and a 99 VIS broomie "

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