I just want to thank you. I bought my first boat, a broken omc cobra. because of your videos I was able to diagnose and replace my engine coupler. You are doing a great service to all us novices. Thank you thank you thank you and god bless
Thanks Stewart! I'm glad to hear you enjoyed the videos. I try to cover all the common issues. If you run into something new, that I haven't covered, I'll make a how-to video for you. Have a good one!
@@michaelromer2016 I want to add a trim tilt gauge to my 89 omc cobra 5.8l. it never had one and it uses the same sender that is in your video. I haven't a clue where I would connect the gauge to, if it's even possible.
@@georgenaylor8274 start with buying a new sender. The one you have will not be working. They don’t last that long. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-puB1Ew17mNI.html
Thanks for the info. It this application lead polarity shouldn't really make a difference. Next, I'd like to see the replacement of the sender procedure.
Just a quick note, You are on the 200K ohm range which is 200,000 ohms. You referred to your reading as 132 ohms, it is actually 132,000 ohms. Video is great thanks for showing me where that sensor is. Not sure why you would get different maximum readings when the leads are reversed, you should just be measuring the resistance on a potentiometer and polarity should not matter.
for anyone reading this old comment, clean the inside of the connectors then add dielectric grease to both ends of the connector. ohm reading will not change by flipping polarity. the reading changed because the connection changed
Helpful. Sounds like these VP senders are garbage quality. I see forum posts of guys saying they have had 3 of them in 4 boating season. I just bought a new had a buddy pull the lower unit only to find that the ohm reading doesn't go below 50ohms (approx 1/2 way on gauge). I wish I could zero in the gauge to solve the need but no luck.
What about on the mercruiser engine how does it work and what wires do I need Tu run just to add a trim gauge cuz it didn’t have one gauge before on the boat
While moving the sender arm back and fourth, the ohm readings should show between 0 and 190-210 ohms. If they do not, you're sending is defective and needs to be replaced. This method of diagnosis can only be used for 1986 - 1992 models.
So what is the method for those of us with a 1997 7.2L VP? My sensor has 3 wires but there are only two going in the harness. My brand new sender shows a 50ohn to 140 ohm range. Thus as the lowest trim it shows 50% on the gauge.
I’m currently waiting on a new pivot rod for my boat but with doing your test I’m getting 00.0. Would that indicate that I need a switch or where would my problem lay?
So there are a few ways to replace it. The best way is to pull the stern drive off and while you have it off remove the u-joint bellow and exhaust bellow too. This will give you a straight shot at replacing everything with little trouble. The transom mount section of the cable has a rubber grommet which you press out to allow the cable to be removed--also simple to remove. While you are replacing the sender, check the ram hydraulic lines for cracks/leaks, this is the most ideal time to replace them and are about $70 a piece. Also check your gimbal bearing and definitely don't reuse the bellows.
Michael Romer did the gimble and pistons last year on it. Any idea where I can find a pin out for the relay. For some reason mines not operating even thought we checked fuses and conti unity of wires. Seem to have an issue with the ground
