tach

I have a brand new tach for my 99 380DA, which I intend to swap for the starboard one which is erratic and working correctly only part time. My concern is that the new tach has 0 hrs. showing for run time and I would really like to have the correct engine hrs. on it. Has anyone ever dealt with...

I have a 2006 52DB with MAN 2876 LE 405 engines. One of my tachometers has failed and I need to find a replacement (picture below). The tach is made by Medallion Instrumentation Systems. The description and part number on the label is: 5 In Tach, 0-3000 RPM Port 6742-16000-01 Any...

I just bought a 97 175 5 series and some of the gauges do not work. I can not find any links to fix this. Oil pressure and up/down gauges do not work. The tachometer works, but can reads high intermittently. Speedometer seems to be a few mph short of my cellphone GPS. I am guessing I have a...

I have an '86 Sedan Bridge 300 with twin 350 Mercs. The port engine has started to read higher RPM on the flybridge than it shows in the cabin at the lower helm. When I look at the cabin gauges, the port and starboard read similar values when applying the same amount of throttle, but they are...

Help! I have owned a 1998 Sea Ray 210 Signature Open Bow for about 10 years. Purchased it with 40 hours on it and it now has approximately 600 hours. A couple of years ago it started backfiring periodically under load. The problem has become increasingly worse and is now a problem every...

I have a 1999 210 bow rider with a 5.0L Mercruiser EFI. Just recently I have had some trouble starting it, and, more of a problem, once it has been running a while the tachometer goes crazy, bouncing between zero and 5000 rpm while the engine skips and pops. It sounds like the coil to me, but...

I have an issue with my port tach and am considering replacement. The analog guage is inop intermittantly (reads zero or low), but the digital display is constant and correct. This leads me to believe it is a mechanical/electrical issue in the analog guage itself and not an engine or...