There are number of sites dedicated to OMC engines. However, if you have any questions or comments, please leave a comment in the General Discussions category. Source of pulses from engine sender;2. What I do is remove the gauge and adjust the knob on the back up and down a few times, and then reinstal it. news
Expert: Tan replied4 years ago. Replaced it in about 15 minutes (darn thing was hot). I do have a tach that goes wonky from time to time on my boat. If the crank position sender was bad the ECM would set a code, or the engine would not run at all. http://www.justanswer.com/boat/6gnmi-tachometer-not-working-correctly-once-awhile-will.html
I don't know your specific tachometer but you could have a couple of issues that you can isolate to determine the 'health' of your tach and these generic troubleshooting tips may hope it helps John Comment Cancel Post CraigC Seaman Apprentice Join Date: Jun 2008 Posts: 42 #9 July 1st, 2008, 02:07 PM Re: Mercury Tach Problems - is rectifier bad, or We have very active forums and any topic that remains inactive for that long should be considered "dead". Gloria Wilson 4,273 views 1:20 ✇ Tachometer: How To Install Wire or Replace : Half Idiots Guide - Duration: 7:29.
If you want to get involved, click one of these buttons! Sign in Loading... Working... Marine Tachometer Troubleshooting Next, make sure that all of your grounds are free of corrosion.
There should be a ignition power that is connected to the tach. Boat Tachometer Not Accurate Above that, and it is off by about 1000rpms for every 1000rpm of advancement (ie...if I am going 2000 rpms, it shows 3000 rpms). If it opens to ground, it may disable the tach.
If it works fine back there but not while installed in the dash you have a connection or wiring problem. 11-23-2006, 09:49 PM #13 jhebert Senior Member Join
Thank you all in advance for doing your part in helping iboats run a smooth ship. Tachometer Not Working Properly Yes No OK OK Cancel X TeamTalk > Maintenance Tips, How-tos and Refurbishing Topics > Electrical > Tach not working PDA View Full Version : Tach not working captkidd08-09-2004, 09:55 AMWell Then today, I talked to a buddy of mine who has been working on outboard engines for over 20 years. Now if you have a charge issue with the engine battery going dead and the battery is good then that could be your tach issue.
Sign in to add this video to a playlist. http://www.thehulltruth.com/boating-forum/106794-tachometer-troubles.html The voltage should be 13.2 to 14.6. How To Test A Tachometer On A Boat Sign in to add this to Watch Later Add to Loading playlists... ContinuousWave Whaler Moderated Discussion Areas ContinuousWave: Whaler Repairs/Mods Tachometer Diagnosis and Repair search | FAQ | profile How To Test A Tachometer With A Multimeter I took it apart and cleaned it.
Not sure if this part needs to be replaced or if I'm on the right track. Keep us posted and hopefully you're successful isolating this tach issue. ------------------------------------------------------------------------------2010 Hurricane SS 188 OB 2010 Mercury Optimax 200HP / Mercury SS High Five 19P 2010 Trailmaster SC trailer1 anchor1 This is the second tach that I've had. Sometimes these can be expensive. How To Check A Tachometer
I troubleshoot tachometer problems with an oscilloscope. jimh posted 08-13-2005 08:24 AM ET (US) [Changed TOPIC; was "tach doest (sic) work."] jimh posted 08-13-2005 08:47 AM ET (US) The pulse output per This brings me to another question however. http://dragonplayer.net/how-to/boat-tachometer-not-working.php A quick check would be to check the voltage at the gray wire at the back of the tach with and without the key on.
mine was the grey wire at the coil as JimN has suggested captkidd08-10-2004, 12:14 PMThanks for all the good information. How To Bench Test A Tachometer I have also seen apps for smartphones and tablets that simulate a strobe tachometer, and while I can't vouch for the accuracy of these apps, they are probably good enough to It looks like you're new here.
The first one went out with only about 40 hours on the boat and was replaced under warranty. Up next How To Fix A Bouncy Tach Needle - Duration: 1:43. Sign in here. How To Bench Test A Boat Tachometer http://forums.iboats.com/forum-rules-guidelines-405/ See more See less Mercury Tach Problems - is rectifier bad, or stator??
post and jumper cable. Ask Your Own Boat Question Customer: replied4 years ago. There is a test for the rectifier in the FAQ on this site. click site experience with complete engine repairs both inboard/outboard and MerCruiser Certified Technician. 25721800 Type Your Boat Question Here...
OMC rectifiers are notorious for failing since the are water cooled. A loose connection that shakes with engine vibration could do it. 2. Thanks for the input. He suggest to leave it on 4P.
If so, you have ignition power.