faulty tach

scutly

scutly

Petty Officer 1st Class
Joined
Aug 20, 2009
Messages
368
never goes higher than about 2000 RPMs. idle seems right but as i increase speed the needle slowly rises and tops out at the 2 grand mark. before replacing with a $80 new one, is there something i could be checking that would cause this? its a Faria

tach.jpg
 
jerryjerry05

jerryjerry05

Supreme Mariner
Joined
May 7, 2008
Messages
17,927
Re: faulty tach

That dial on the back.Re-hook it and start.Then slowly push in the dial and turn it to the right 1 click and test it.If that doesn't work 1 more click.Keep going till it reads right or if that don't work then buy a new one.J
 
ziggy

ziggy

Admiral
Joined
Jun 30, 2004
Messages
7,473
Re: faulty tach

assuming the settings on the back are correct for your rig. the test for my tach per the mercruiser s/m is to test it against a known good shop tach.
 
You must log in or register to reply here.
Top