Vehicle & Technical > Defender
running hot - help
drmike:
Are you dead certain that you have the right thermostat - don't some need a little hole in them - and that it's the right way round! Ran mine with no thermostat and it would show as overheating at a steady 55 because it needed the back pressure to circulate the coolant.
The engine never smelt hot so I didn't really believe it was overheating just the bit round the sender was damned hot.
Mike
muck_truck:
it still could be the sender/gauge giving you dud info. mine was running warm (close to red) acording to the gague with a viscous fan on.
Now i dont run a viscous fan but use a tim temp gauge (which reads degrees) and now it usually sits about 80 and creeps upto 90 if im driving hard. Also my bottom hose is only luke warm which would be right seeing as the thermostat only opens at 88.
id change the gauge, its cheap and easy to do before you start doing water pumps etc.
Here is a capilary one, but you will have to run some pipe from the housing into the dash. not my idea of a good idea
http://cgi.ebay.co.uk/TIM-WATER-TEMP-GAUGE-CAPILLARY_W0QQitemZ230064639117QQihZ013QQcategoryZ72205QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
Here is a elctric one that i fitted but i didnt pay 33 quid!
http://cgi.ebay.co.uk/New-TIM-Black-Face-Water-Temperature-Elec-Gauge-52mm_W0QQitemZ230065394014QQihZ013QQcategoryZ72215QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
Range Rover Blues:
Just my 2 penneth but I had a similar years ago on an old Escort. Does you fuel guage read higher than it used to? can you tell?
The temp and fuel guages run from a voltage stabiliser so they don't go up and down with the engine revs, older ones use s bimetlaic strip heated by the current going through it, so they tick. After a while they can break and if it sticks on you guages run from 14.3 volts rather than the 7 or 8 volts they are meant to.
Incidentlayy these things look and work very much like old flasher units :wink:
Matt_H:
--- Quote from: "drmike" ---Just how hot is it running?
I believe that antifreeze isn't a very good coolant so that you're now using a liquid that won't cool as well as the weak solution that you had before.
Mike
--- End quote ---
modern antifreeze is "antifreeze and summer coolant", it moves the freezing point down and the boiling point up, it also has good heat exchanging capabilities so does cool pretty well AFAIK.
Matt
TDi90:
well, i am at the moment in austria, so i dont have the ölandy with me, but i have changed everyting, as i have said before:
1 - a complete rad flush
2 - changed the sender,
3 - changed the thermostat -
i done it all!!
the only thing i have not done is changed the guage, but she has been running fine on that guage for ages.!!
argh its really annoying me, and im not even back home yet!!
cheers guys Rob
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version