How about some form of water pressure sensor? One would think that when
the level drops, the pump would not be putting out full pressure due to
air/cavitation etc?
Or a temperature sensor located lower on the block? If fluid is not
moving well, one would think the temperature would rise?
Randy
On 09/07/2012 12:13 PM, Dan Penoff wrote:
The problem with the typical temperature sensor is that when it is in free air,
it doesn't work. It had to be in contact with the liquid to be measured. Case
in point:
When I was at Kohler we started using Ford industrial engines on our small
(<100kW) gas units. Unfortunately, some of the units like to develop cooling
system leaks during operation, which would cause the system to drain down far
enough that the engine would overheat and seize up. Not good.
These had high water temperature senders that would shut the unit down if it
overheated, which in this situation, did not happen.
The engines would come back to us visibly failed farm overheating, so bad that
paint would be burned off the sides in some instances.
Long story short, when we discovered the leaking cooling systems, we ended up
putting a float switch in the top tank of the radiator, which would also shut
down the engine.
Our overheating failures dropped significantly after doing this.
There are now electronic senders that work off of temperature differentials
that provide the same signal. If someone was enterprising enough, they could
install one if these in their radiator and use it to light a light.
Dan
On Jul 9, 2012, at 12:29 PM, Rich Thomas <richthomas79td...@constructivity.net>
wrote:
I was thinking about that when she told me she "did not see a red warning
light." I should try to rig something up, just a little temp sensor and a
buzzer/light or something.
--R
On 7/9/12 12:19 PM, Randy Bennell wrote:
On 09/07/2012 11:13 AM, andrew strasfogel wrote:
My son experienced two 300SD overheating snafus, cooking the engine in
the process both times. Each time the cause was a cracked plastic
radiator neck, while he was driving fast on the h'way and didn't
notice in time. Since then he was switched to Miatas, Subaru
Outbacks, and most recently a Lexus under warranty.
One would think it should be possible to rig up some form of warning device
that would give an indication long before the engine quits or one notices the
gauge etc.
Inboard outboard boats have an audible warning if they begin to overheat.
Randy
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