02GF74
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| posted on 18/1/10 at 01:23 PM |
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temp for rad fan switch in bottom hose.
Originally I planned to fit radiator fan switch in a joiner between thermostat housing outlet and top of radiator but may not have the room.
But there wil be a long joiner in the bottom hoseso the switch will sit in the cooled water coming out of the radiator.
What would be a good value to have the radiator fan(s) switch on?
Engine is 1600 crossflow, 88 degree C thermostat. I have no idea of temperature drop across radiator.
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blakep82
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| posted on 18/1/10 at 01:36 PM |
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hmm, i don't know, but wouldn't the temperature of the water in the top hose always give the engine water temp, whereas the bottom hose
might vary depending on a lot of factors, like outside air temp, air speed over the radiator, and maybe other stuff.
i think you 'could' get situations where your engine is overheating, but because its below 0 degrees outside, your raditors cooling a lot
more and the fan doesn't come on?
^ but then the waters colder going in... so would it be a problem...? lol i don't know. if you've got space for a hose, why wouldn't
you have space for a joiner with temp sender? they're not much bigger than the hose itself? or is it more a length issue?
[Edited on 18/1/10 by blakep82]
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Garyd
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| posted on 18/1/10 at 07:19 PM |
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Hi
I ran my fan switch in my bottom hose on my 1600 crossflow and the only problem I found was that on hot days the fan didn't run/cut in
properly enough to keep the engine at a safe coolness, I was always worrying it was gonna overheat so it took the fun away from driving it. Saying
that, It never did overheat but I moved it to the top hose and was suprised how much more the fan cut in and kept the temp at a more stable heat.
hope that helps.
Gary
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britishtrident
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| posted on 18/1/10 at 07:57 PM |
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What type of radiator ?
If its an old fashioned brass rad solder a brass nut to the top tank of the rad. I
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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