Hello fellow TFers.
On my beloved boat I have 2 tachs, one takes its input from the alternator the other one fro a mechanical input.
Below are two pics of the mechanical sender:
From what I found this one is taking its input fro mechanical take-off.
Looking at it to redo its connection using an automotive waterproof plug I found out that it is not screwed tight between its parts.
So my question(s) is (are):
Is it a mechanical take off or a magnetic pick-up? I would vote for a mechanical take-off as it is grounded to the engine block and if I am right a magnetic pick-up should not be.
Should it be tighten? I mean that it is loose on it screw (two parts are screwed, one fitting on the block, one part on the fitting and the sender on this part. Should these 3 part screwed tight?
I just would like to get it installed adequately