Further thoughts on the switch - most will sound the alarm around the the boiling point. Thread size and sensor length will differ. The faulty one can be removed and matched at an auto parts store, or obtained from the engine dealer. The cooling system will need to be partially drained to remove it and install the new one.
Doug, your alarm coming on with the ignition switch and staying on for a few seconds after starting is normal. It's the oil pressure switch that's causing the alarm, and it shuts off once oil pressure rises after startup. Boats with Twin Disc gears will often give an alarm chirp when shifting due to momentary pressure drop - also normal. On Tue, Jul 26, 2016 at 9:10 AM, Doug Thomas <[email protected]> wrote: > Bob, > > > > I agree they are cheap, but I'm not sure they are generic. They do all > look the same. I recently replaced a temp sending unit and it showed my > engine overheating - in fact the gauge was spiked at 250F. I terminated the > trip thinking the engine was overheating. Determined the new sending unit > was at fault. Compared numbers on the old and new unit and they were not > anywhere near the same. Put the old unit back in, which was actually > working (long story) and the gauge read properly again. > > > > As for the alarm, mine comes on (really irritating) as soon as the > ignition is turned on. Stays on for several seconds after the engine is > started. I now turn it off until I leave the dock and rely on the gauges > and indicator lights in the meantime. > > > > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *Bob S > *Sent:* Tuesday, July 26, 2016 10:03 AM > *To:* [email protected] > *Subject:* Re: [UnifliteWorld] Water alarm. > > > > Our messages crossed in cyberspace................. > > > > On Tue, Jul 26, 2016 at 6:47 AM, John Strong <[email protected]> > wrote: > > I don't think it measures water flow, just water temp. Temp sensors, both > for gauge and alarm, are usually high on the engine, in the top or side of > the cylinder head. With ignition on, disconnect the wire from one of the > sensors. If the alarm stops, you found it. If the gauge quits, it's the > other one. The alarm sensors are generic and cheap. > > > > On Tue, Jul 26, 2016 at 5:56 AM, Bob S <[email protected]> wrote: > > Yes it's the bell alarm water indicator light. Temperatures are normal and > waterflow normal. Do you know what and where the alarm measures water flow? > > -- > You received this message because you are subscribed to the Google Groups > "UnifliteWorld" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/unifliteworld. > For more options, visit https://groups.google.com/d/optout. > > > > -- > You received this message because you are subscribed to the Google Groups > "UnifliteWorld" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/unifliteworld. > For more options, visit https://groups.google.com/d/optout. > > > > -- > You received this message because you are subscribed to the Google Groups > "UnifliteWorld" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/unifliteworld. > For more options, visit https://groups.google.com/d/optout. > > -- > You received this message because you are subscribed to the Google Groups > "UnifliteWorld" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/unifliteworld. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "UnifliteWorld" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/unifliteworld. For more options, visit https://groups.google.com/d/optout.
