2005 - 262 tach problem

[benp]

Well the good news is I took delivery of a 2005 - 262 BR last week and took it for quick run to the lake on Sunday.  The bad news is that the tach isn't working.  It has power as the hour meter lights up and records time, but the needle for RPM does not move.  I pulled the dash and cleaned the wiring connector (didn't look bad to begin with).  I'm guessing the next step is to check connection at the motor.  Does anyone know where the tach wiring originates from on a Merc 6.2L?  Other thoughts on what I should be looking for?

Thanks.

[AlexisandChad]

Congrats on your new boat.  As for your tach it sounds like a few different things.  On my boat, it was the ground connectors.  One at the distributer and one on the motor.  Both were corroded and after replacing them all was well.  I am not sure on the 6.2L but on my 5.7L it was a brown wire and blue wire that feed my tach.  HTH

[OkieCaptiva]

Mines doing the same thing, I just bought it last Saturday!! Its an 04 with 30 hrs.... gonna check my grounds!!  Also this goofyFaria depth gauge is flashing 5 ft?????

[ParkRode360]

The Faria depth gauge supports shallow / deep depth warnings. If it's flashing at 5', probably was set at some time in the past.

http://faria-instruments.com/site_manuals/IS0091F.pdf

Note that the flashing *might* be caused by growth over the transducer -- I had this problem two years ago, cleaned the hull and was good to go...

[OkieCaptiva]

Hey thanks for that info!! Ive read alot of problems based on this depth gauge
Shouldnt be like that..... Also my tachs reading way slow too, guess ill track down those
Wires also....

[benp]

I ended up sending my tach to Faria for repair.  Got it back in about 4 weeks and it's working great.