Drifting Tachometer

[krminyl@...]

My tach is still acting up, after 2 yrs or so of erratic behavior. It all started after pressure washing my motor. I thought it was just a wet connector on the sending unit, so I cut/spliced the connector, and the problem still exists. I thought about replacing the sending unit, but they are kind of costly (a used one was something like $90??). Maybe try disconnecting the sending unit all together, and see if you still get the weird readings....if so, your sending unit is probably OK, and the issue is probably with either the gauge itself, or perhaps a bad ground.

I've kind of gotten used to the sometimes yes/sometimes no tachometer, and keep a fine tuned ear to the running motor. I'm interested to what you fix will be...keep us posted.

Kevin McKeown

Yorba Linda, CA

1986 38' PT (for sale)

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