[C320-list] Audible Alarm on Instument Panel

[T. Scott Thompson]

Sorry:  I do not.  I'd call Catalina.

John Van Vessem wrote:
> Scott,
>    
>   Thank you for the great information.  Sounds like I need a new buzzer, do you know where I can get one?
>
> "T. Scott Thompson" <sthompson at toad.net> wrote:
>   John: Two thoughts: First, there are "idiot lights" on the instrument 
> pod for oil pressure. If the idiot light for oil pressure comes on when 
> you activate ignition (but without starting the engine) then the problem 
> is in your buzzer, since they are wired in parallel. If the idiot light 
> does not come on then you may have a problem with the oil pressure 
> sensor, or it could be elsewhere. You can test the sensor by shorting 
> out its lead to the engine block. If the idiot light or buzzer come on 
> only when you do this then the sensor is bad. Otherwise the fault is 
> elsewhere.
>
> Testing the temp alarm sensor isn't quite so easy since it's not 
> supposed to go on at all unless you are over temp. You can, however, 
> test the panel circuitry for this alarm by shorting out the sensor on 
> the engine block. That should set off the alarm.
>
> These comments are based on the Yanmar design. The Yanmar sensors 
> activate by creating a connection between their input lead and the 
> engine block. The instrument panel alarms are fed with +12 by the 
> ignition switch, and completing their ground through the engine block is 
> what sets them off. Given this design, the oil pressure alarm is 
> supposed to go off if the engine isn't running but the ignition switch 
> is on.
>
> By the way, you can trace this fairly easy by looking at the engine 
> panel wiring diagram in your manual.
>
> Scott Thompson
> Surprise, 653
>
> John Van Vessem wrote:
>   
>> I'm going to try to fix the alarm on my instrument panel today, it doesn't work. Can anyone give me some advice as to whether the problem is the horn itself or the sending device. Is the sending device on the engine? If its the horn itself where can I get one?
>>
>> John (Sojourn 645)
>>
>>
>> John Van Vessem
>> Sojourn 645
>> Vallejo Yacht Club
>> !!- _______________________________________
>> !!- C320-List at catalina320.com mailing list
>> !!- Archives Here: http://www.catalina320.com/list/archives
>> !!- Change Subscription Here: http://www.catalina320.com/list/change
>> !!- Subscribe Here: http://www.catalina320.com/list/join
>>
>>     
>
>
> !!- _______________________________________
> !!- C320-List at catalina320.com mailing list
> !!- Archives Here: http://www.catalina320.com/list/archives
> !!- Change Subscription Here: http://www.catalina320.com/list/change
> !!- Subscribe Here: http://www.catalina320.com/list/join
>
>
>
> John Van Vessem
> Sojourn 645
> Vallejo Yacht Club
> !!- _______________________________________
> !!- C320-List at catalina320.com mailing list
> !!- Archives Here: http://www.catalina320.com/list/archives
> !!- Change Subscription Here: http://www.catalina320.com/list/change
> !!- Subscribe Here: http://www.catalina320.com/list/join
>