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getting to hot?
marshall - 9/7/07 at 08:19 PM

hi all the car is a 2.0 pinto Avon with a
polo rad with a RH fan it is getting a bit hot for me .100 - 120 is this to hot or what
the fan is in the front of the car .
so can you tell me is it a blowing fan or a
sucking fan that is the Q .
i tryed a leaf on the rad on the engine side and it stuck to the rad with the fan was ON if the fan was to blow the rad it should not stick right? the water dose not go when the it cools down the water is as it was from the start so the is no air lock as far as i can see

britishtrident - 9/7/07 at 08:25 PM

Is the motor on the fan rotating in the correct direction for the curvature of the fan blades?

If it isn't you have the motor polarity the wrong way round, switch the earth wire with the positive feed wire.

RazMan - 9/7/07 at 08:25 PM

It should be obvious which way the fan is running by looking at the fan blades ...... and the big rush of hot air would be a clue too

120 sounds a bit too hot - my V6 uses a Polo rad and stays around 90 degrees with normal road use, rising to 95 in traffic which is when the fan kicks in and cools it back down to 90.

andrew.carwithen - 9/7/07 at 09:45 PM

I'm also using a Polo rad and RH fan in my Avon. BUT my fan is mounted behind the rad and pulls the air through it.

Andy.

[Edited on 9/7/07 by andrew.carwithen]

soggy 3 - 9/7/07 at 10:01 PM

probably a silly question but is the thermostat working? the problem i came across was the temperature switch but my engine isnt a pinto.

[Edited on 9/7/07 by soggy 3]

marshall - 10/7/07 at 05:21 AM

as for the theromstat it has been removed as i am not useing a heater
and it ts not needed as i was told...

DaveFJ - 10/7/07 at 09:41 AM

not wanting to point out the obvious but...

if your fan is mounted in front of the rad and is sucking air through then any forward motion will negate the fans effect..........

[Edited on 10/7/07 by DaveFJ]

02GF74 - 10/7/07 at 09:45 AM

quote:
Originally posted by marshall
i tryed a leaf on the rad on the engine side and it stuck to the rad with the fan was ON


this answeers your question.

if fan is on one side of radiator and leaf on other, the fan is sucking air. therefore fan should be behind radiator.

as you have it fitting in front, it is wrong. there should be two wire to the fan motor; swap them over.

bimbleuk - 10/7/07 at 10:15 AM

If you've removed the thermostat and get temps above 70 deg when driving then you have a problem! There should be plenty of air flow when moving to over cool the engine. Hence the thermostat to help warm the engine initially and then control the minimum temp there after.

RazMan - 10/7/07 at 10:42 AM

quote:
Originally posted by bimbleuk
If you've removed the thermostat and get temps above 70 deg when driving then you have a problem!


I would have thought that 70 deg is far too cold to be good for the engine - I would aim for 80 - 90 as the norm.

Also worth noting is that the fan should only be working when it is over the safe temp - obviously the forward motion of the car will produce airflow .... unless the fan is fighting against it.

Sorry if I am stating the obvious

t.j. - 10/7/07 at 01:11 PM

Do you trust the gauge?

First measure temp with good tool.
Then look at possible failures.