55ant
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| posted on 11/3/10 at 07:41 PM |
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Coolant pressure sensor
Hello everyone,
one of my worries is a coolant hose falling of or bursting etc, and loosing all the collant, killing the engine, this got me thinking why dont cars
have a coolant pressure sensor? or do they? cant say i have ever come across one, even just a little red led that came on could be a real life
saver.
ant
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Paul (Notts)
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| posted on 11/3/10 at 08:42 PM |
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I have a level sensor in my header tank connected to a large red light on the dash and a green light to show its ok.
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02GF74
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| posted on 11/3/10 at 08:47 PM |
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quote:
Originally posted by 55ant
this got me thinking why dont cars have a coolant pressure sensor?
because production cars are designed so that the hoses don't pop off.
you may ask why cars don't have a windscreen missing sensor or ........
... but many do have a low level coolant sensor - may be more useful than pressure sensor since when system is cold i.e. no pressure, the light will
come on and worry you.
it probably isn't that big a deal to fit an oil pressure sensor, I'd imagine it will work fine, should your really want.
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boggle
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| posted on 11/3/10 at 08:50 PM |
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if the hose came off then the temp guage would let you know....
it would go up.....
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55ant
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| posted on 11/3/10 at 09:15 PM |
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ah cool, i realise hoses arnt supposed to pop of, but cars arnt meant to over heat but most have temp guages,
i didnt think the temp guage went if up all coolant was lost, due to conductivity or some fancy word like that,
like the sound of a coolant level light, ill keep an eye out for one,
cheers all.
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nitram38
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| posted on 11/3/10 at 09:28 PM |
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quote:
Originally posted by Paul (Notts)
I have a level sensor in my header tank connected to a large red light on the dash and a green light to show its ok.
Me too. Especially since my engine is behind me!
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nitram38
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| posted on 11/3/10 at 09:31 PM |
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quote:
Originally posted by boggle
if the hose came off then the temp guage would let you know....
it would go up.....
On a K-series it don't! Thats why they suffer so many failures. Loss of coolant means the temp sensor is in an empty housing and reads
normal.
I had this prob on my first car (F1-2).
On later rovers and MG's they put a float switch in the expansion tank.
I have an R1 on the MotaLeira, but I still have fitted an MG expansion tank with switch
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britishtrident
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| posted on 12/3/10 at 08:00 AM |
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quote:
Originally posted by boggle
if the hose came off then the temp guage would let you know....
it would go up.....
On a lot of engines the gauge won't tell you if the engine is boiling, on a lot of modern car electronics systems the gauge isn't driven
directly by the temperature sensor but by the ECU, if the ECU gets a signal from the sensor that is suddenly out of the normal range it will ignore
it as a a faulty sensor and substitute a default normal value.
[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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britishtrident
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| posted on 12/3/10 at 08:04 AM |
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I have been looking at one these for while as potential mini project
http://www.lrseries.com/shop/product/listing/15117/3305/21/PCF500060-EXPANSION-TANK-AND-SENSOR-UNIT.html
Also see thread http://www.locostbuilders.co.uk/viewthread.php?tid=121137&page=&contribmessage=none
[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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