Tach suddenly reading high, and not returning to 0.

captainTB

1998 Rinker 266, 7.4l/ B-3. Yesterday my tach started acting up. Seemed to reading high, not returning to 0 when shut down. No previous problems. Thanks ahead,TB

SeaHare

Give it the 'ol Faria tap... hit it with your knuckle a time or 2.. itll go back... it happens to all us

raybo3

Remove the dash. In the back of the tach there is a "pot". Notice where its set at. Take a small screw driver and move the pot back and forth a bunch of times then put it in the same position that it was. That should last about 2 years............ Just say'n

rasbury

Smack it

aero3113

rasbury said:

Smack it

LoL

andyd

I'm astounded you have a Faria Tapometer that only just started acting up.

Andy

Willhound

I too did the tap and slap for a few years. Then had to pull the dash panel to run a new TV antenna cable and while in there did the back and forth on the pot screw. Still reads 900 RPM shut off.  But accurate when running.

Ian

Mine go to psycho mode at times. VVM doesn’t