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#1
IP: 208.70.146.152
12-05-2022, 09:44 AM
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Placement of Water Temp Sending Unit
Hi Don~
I am wondering if the Water Temp Sending Unit would give a more accurate reading of the temperature of the Coolant, if it were placed at the intake side of the flange mount MMI water pump. The sending unit is currently mounted in the fwd end of the head, and fluctuates a lot, given the proximity of the thermostat. 
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#2
IP: 76.176.224.167
12-05-2022, 10:15 AM
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Out of curiosity are you talking about a RWC or FWC engine? Not sure why I'm curious because my reply would be the same. The pump intake is the coolest part of the system so temps measured there wouldn't be meaningful. The exit at the manifold is the hottest part of the system so sensing there would be skewed at the other end of the spectrum.
The cooling system is controlled by the thermostat so sensing there tells you what the engine is seeing too. I suspect the fluctuations you're seeing are the effect of the thermostat opening and closing.
__________________
Neil 1977 Catalina 30 San Pedro, California prior boats 1987 Westsail 32, 1970 Catalina 22 Had my hands in a few others
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| The Following 2 Users Say Thank You to ndutton For This Useful Post: | ||
Greg Kingman (12-05-2022), Sam (12-05-2022) | ||
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#3
IP: 138.207.177.95
12-05-2022, 01:39 PM
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It would provide a before and after view if you still had the original temp sender too and were FWC. Otherwise it would not mean much.
__________________
Joe Della Barba Coquina C&C 35 MK I Maryland USA
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#4
IP: 208.70.146.152
12-05-2022, 03:03 PM
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placement of water temp sending unit (FWC)
My original water temp sender placement is at the front of the head,
the secondary water temp sending unit placed at the intake side of the flange water pump would tell me the temperature of the coolant after it leaves the heat exchanger, correct?
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| The Following User Says Thank You to Greg Kingman For This Useful Post: | ||
TimBSmith (12-05-2022) | ||
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#5
IP: 32.211.38.220
12-05-2022, 06:16 PM
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I moved my temp sender from the fwd end of the head to a tee at the outlet from the manifold. I was happy with the change.
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| The Following 3 Users Say Thank You to Al Schober For This Useful Post: | ||
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12-05-2022, 07:06 PM
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| Greg Kingman |
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This message has been deleted by Greg Kingman.
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Linear Mode
