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Old 02-10-2019, 11:21 AM   #8
DavidM
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City: Litchfield, Ct
Join Date: Aug 2012
Posts: 6,784
There is a raw water flow alarm, made by Aqualarm and an exhaust gas temp alarm made by Borel. Wasn't aware that Borel also had a r/w temp alarm.

I had that same boat and engine and installed the Borel raw water temp alarm on a Centek fiberglass connector just after the blue hump hose below. It was too sensitive there and sometimes alarmed on hot days near idle. I moved it downstream a couple of inches over the black hose and that stopped the spurious alarms. But those spurious alarms were convincing evidence that it worked.

See the attached pic which describes my setup. BTW I installed the connector as part of a riser extension to avoid water backing up into the turbo.

A raw water temp alarm would possibly alarm too late and may allow low raw water flow to exist for a long time. A raw water flow alarm like Aqualarm may stick and therefore fail to alarm.

All in all I like the Borel exhaust gas temp alarm.

David
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Bella final exhaust system.jpg  
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