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Erratic tachometer on 57L Crusader

allmorro

New member
"The Tach on my 1997 Sea Ray 2

"The Tach on my 1997 Sea Ray 210BR behaves erratically. Engine is Crusader 5.7L 315 hp, 40 hrs on motor. Engine runs well. One minute the tach says 1800 rpm idle, next 600 rpm idle. Wot once showed 6000 rpm, then 10 min later 4500 rpm. Speedometer is also flaky. Everything else, radios, etc seem to work fine. Any ideas. Boat only has 142 hrs on it since new."
 
"Loose or dirty connections on

"Loose or dirty connections on back of tach or it has gone south. Tap on the face with your knuckles and see if it jumps around. If it does jump around, replace it.

What is the speedo problem? It is air pressure operated. Check for a kinked or split hose at the OD."
 
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