Re: [OMC-Boats] speedo and tach

The pitot tube can get clogged. You can try using a really small drill bit to get the gunk out. Twist it in then pull it out. That's what I was taught. The experts may have a better suggestion. ________________________________ From: jd <jdood@...> To: Evinrude & Johnson Boats of the 1960's and 70's <omc-boats@...> Sent: Friday, August 14, 2009 1:14:26 AM Subject: [OMC-Boats] speedo and tach Well i spoke to soon when i bragged about my inexpensive only slightly used speedo and tach I got off ebay.    I had a funny feeling when i typed that.      Neither are working.  But it's gotta be something simple - they're both in great cosmetic shape and how much can really go wrong with either. For the speedo,  can those pitot tube thingys that mount on the transom get clogged?  My is only 3 yrs old and has barely seen water.  I will unplug both ends and do a blow test i guess,  but how can i test the actual speedo gauge? For the tach,  from what i recall it was just a grey wire from the engine and a ground wire connecting to the back of the gauge.    There was a dial for 4 6 8 and im sure i made sure it was on 6.  but if i got that on 8 or 4 would that make it just not work entirely,  or would it work but give false readings.    The grey wire goes to the coil.  But if it was the coil not sending the right voltage down the grey wire,  I would notice other coil related probs wouldn't I? thanks! Jeff D _______________________________________________ OMC-Boats mailing list OMC-Boats@... http://lists.ultimate.com/mailman/listinfo/omc-boats
Received on Friday, 14 August 2009