I have a 1997 Sea Ray 210 BR with 142 hrs. 315 hp 5.7 L alpha GenII, carburetor equipped. The problem is with the gauges. The tach sometimes seems to be accurate, then 10 minutes later will be reading much too high. Last time I was out, it said the motor idled at 1800 rpm, and ran to 6000 at wot, then 10 min later, idle was 600 and wot 4600 rpm. The speedometer also often seems not to work most of the time, but sometimes registers, but when it does, it is always slow (Wot = 40 mph, actual over 55mph). The engine has only 42 hours on it (new last year), and runs great. There is no apparent change in engine sound, boat speed, etc when the gauges do their dance.. .so it is not the motor directly. Finally, the oil pressure gauge registers correct oil pressure (or seems to), but the warning horn attached to it continuously emits a soft alarm sound even when oil pressure is 50 psi (but gets very loud as it should when ignition is on and engine not running (oil pressure = 0).
What gives? Radio, lights, everything else works, engine starts and idles and runs fine, but these gauges seem wacky? Any ideas appreciated.
What gives? Radio, lights, everything else works, engine starts and idles and runs fine, but these gauges seem wacky? Any ideas appreciated.
