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No Engine Temperature

Mercury MerCruiser

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Old 07-07-2009, 01:49 AM   #11
 
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Default Re: No Engine Temperature

Quote:
Originally Posted by SEMIJim View Post
Btw: Assuming the buzzer's bad, any pointers on what I need to replace it with?

Thanks,
Jim
Hi Jim, funny you should ask....

Click here and you'll find this info in the third post by ShabahZ250.

WetWilly
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  • Old 07-07-2009, 04:27 AM   #12
     
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    Default Re: No Engine Temperature

    Quote:
    Originally Posted by WetWilly View Post
    Hi Jim, funny you should ask....

    Click here and you'll find this info in the third post by ShabahZ250.

    WetWilly
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    Old 07-08-2009, 04:17 AM   #13
     
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    Default Re: No Engine Temperature

    Good news: The high-temp/low-oil-pressure buzzer is fine. It had been disconnected.

    Next question: Did I re-connect it properly?

    I was tracing-out why it wasn't working and, as I traced a purple wire, which I assumed supplied 12VDC to the module when the ignition was turned on, I found the end of it was hanging in the breeze! Now... where to connect that bugger? It was a combined Faston receptacle and tab. There was a purple wire on the lanyard switch. So I pulled the purple wire off the switch, plugged the alarm's purple wire onto the switch, and the purple wire that had been on the switch onto the tab of that one.

    Is there a delay built into these alarms? Because when I turn the key on, it takes five seconds or so for it to sound.

    Where, btw, might I find the low oil pressure alarm sender?

    Thanks,
    Jim
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    Old 07-09-2009, 07:04 AM   #14
     
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    Default Re: No Engine Temperature

    Quote:
    Originally Posted by SEMIJim View Post
    Is there a delay built into these alarms? Because when I turn the key on, it takes five seconds or so for it to sound.

    Yes, it turns out that the '94 and older engines (carbed) have a delay timer circuit built onto the buzzer. Manual says between 7 -14 seconds for the delay. The newer ones like what ShabahZ250 has doesn't have a delay, just a straight buzzer.


    Quote:
    Originally Posted by SEMIJim View Post
    Where, btw, might I find the low oil pressure alarm sender?
    Sorry, haven't figured out this one yet...

    WetWilly
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