Does anyone know where the sending wire is for the tachometer for the 3208TA engine. The Cat Service manual indicates there is a magnetic pickup on the flywheel bell housing. I can't seem to find it and would appreciate anyone's assistance.
Thanks
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Thread: 1985 Caterpillar 3208
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1985 Caterpillar 3208
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Re: 1985 Caterpillar 3208
I guess it depends on which gauges you have, but the mechanical tach drive on a 3208 is on the front housing under the expansion tank/heat exchanger.
--- The poster formerly known as Scrod ---
I want to live in Theory, everything works there.
1970 36C375
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08-12-2011 05:26 PM #3Senior Member
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- Jan 2006
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- 822
Re: 1985 Caterpillar 3208
That's the only place that I have ever seen one. It drives off of the camshaft.
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Re: 1985 Caterpillar 3208
Yes, that is where the mechanical tach sender is and on my boat that is connected to the Glendenning unit with a mechanical cabel. It is in the owners manual under "12VDC Ships Service System Pictorial" that the "Engine Wiring Typical" indicates a tach wire coming from the engine. I do not see any wires on the mechanical cabel or Glendenning unit.
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Re: 1985 Caterpillar 3208
I was fortunate enough to get a reply on Boat Diesel and it appears there are Sun Tach sending units on the Glendenning Sync. I verified this yesterday and also toned out the line from the flybridge. The electric line does in fact go to the Glendenning Sync as in the attached photo. The Sun units are no longer available but researching a previous thread here on our Forum Lauderdale Speedometer & Compass makes an aftermarket replacement.
IMAG0250.jpg
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08-18-2011 12:12 AM #6Senior Member
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- Apr 2008
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Re: 1985 Caterpillar 3208
you can also, likely, get a tach signal from the altetnator.
JMGLORY Hull # 365
Northport, NY
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08-18-2011 01:49 PM #7