I started the boat for the first time this summer 2015 and the temp gauge worked. I also added Teflon tape on the threads to prevent leaks. This repair was a success.
I have the same motor but a 4.3 I put a new thomostat in and took the boat out and I noticed my temp guage doesn't not work with the key on but when I turn my key to the off position the guage then reads that the temp is. Any answers to what's going on?
Great video - simple and to the point- to rule out a malfunctioning gauge. One more step before changing the sender is to check and replace the thermostat. After replacing the sender my gauge still didn't work - turns out the thermostat was stuck open so cool lake water was being pushed past the sensor never letting the engine warm up all the way, and, of course, not causing the sender to register any heat. I may have changed the sender needlessly...
Hi there great video but how did you get the socket on the sender? I have the exact same alpha one engine and a socket will not go around the sender...it is so tight against the top of the unit...thanks!
Thank you for sharing. I wasn't planning on changing my Temperature sender on my boat. Did that testing ( ground it) and came to see the sender was bad. The question is: Did yo torque the sender? The temperature on the boat is 175. Already changed the thermostat.
It is not touching the belt. two inches off. It wasn't it's final resting place. As i said I put tape on to seal the threads. It was hard to hold the camera, wrench and wire in place. So , I just spun it for the camera and readjusted after the tape.
I had a temp gage stop, so i put in a new gage and sensor when i rebuilt my engine, V6 mercruiser, the new engine and all new stuff was showing 200 to 220 with a 140 thermostat. but engine felt cool not really 200, I checked everything both pumps, changed it all still 200.. finally bought a more expensive gage, and matching sensor, and got OEM thermostat and now it reads 140. finally...
After watching I tested mine. Nothing happened but I left it grounded. I lifted my panel to check wires and boom, she pegged out. Turned out to be a loose wire!
My temp gauge reads minimum (100F) all the time, how do I check what type of sender I have and what type of gauge it will be compatible with? My OEM gauge is Medallion 8-84 which appears to be defunct, I can't even find replacement units on eBay.
The one I put in was Seirra I believe. I do not know how to test the gauge. I am not even sure you can find an original on some of them. Sorry I can not help. If you have a mercruiser you could find one an auto part store most likely. They used some of the 4 cylinders in for lifts.
I started the boat for the first time this summer 2015 and the temp gauge worked. I also added Teflon tape on the threads to prevent leaks. This repair was a success.
Sure Glad it was. The Mercruiser made for some amazing boating footage so far this summer!
I have the same motor but a 4.3 I put a new thomostat in and took the boat out and I noticed my temp guage doesn't not work with the key on but when I turn my key to the off position the guage then reads that the temp is. Any answers to what's going on?
Looks good. Don’t add the Teflon tape, the sender relies on metal to metal connection for ground.
Did water run out of the engine when you removed the old sender?
It didn't
Great video - simple and to the point- to rule out a malfunctioning gauge. One more step before changing the sender is to check and replace the thermostat. After replacing the sender my gauge still didn't work - turns out the thermostat was stuck open so cool lake water was being pushed past the sensor never letting the engine warm up all the way, and, of course, not causing the sender to register any heat. I may have changed the sender needlessly...
+Tim Turino good point.
Awesome Video. But I keep wondering if you're giving me the bird on purpose or not?
+AwesomeDocumentary lol. It's funny. My little brother points with his middle finger. I guess I do too after a few drinks
+AwesomeDocumentary lol. It's funny. My little brother points with his middle finger. I guess I do too after a few drinks
great video, learned what i needed. thank you'..
+elimonjal Thank You! I hope it works out.
did you run 5 miles befor you made this video?
Hi there great video but how did you get the socket on the sender? I have the exact same alpha one engine and a socket will not go around the sender...it is so tight against the top of the unit...thanks!
Try a wrench. Mine must of been a thin walled socket
thanks that's where I was going next but tried and its really tight so maybe will try heating it up first...brass strips easy
@@fisherkrol yes, you forsure don't want to strip it. Be careful
How did you get that 3/4 socket on? I cant put it on mine since the thermostat housing prevents me from doing so. Thanks.
ve3plo Maybe try a wrench. It went on easy. Maybe yours is a different size? Sorry it is not going as easy as it did for me. Good Luck!
Thank you for sharing. I wasn't planning on changing my Temperature sender on my boat. Did that testing ( ground it) and came to see the sender was bad. The question is: Did yo torque the sender?
The temperature on the boat is 175. Already changed the thermostat.
I just tighten it. I am sure it has a specific torque but I didn't do it
@@BigIslandMNMinnetonka Oh ok.
Thanks
Where does that wire run to...mine was snapped off and no wire in site
Sorry I'd have to see it. Sorry
How long before the wire chafed through laying against the drive belt like that?
It is not touching the belt. two inches off. It wasn't it's final resting place. As i said I put tape on to seal the threads. It was hard to hold the camera, wrench and wire in place. So , I just spun it for the camera and readjusted after the tape.
Good stuff!!
Good stuff!!
Thanks for the video, where would that be located on a 97 7.4 mpi
Sorry can't help you
I had a temp gage stop, so i put in a new gage and sensor when i rebuilt my engine, V6 mercruiser, the new engine and all new stuff was showing 200 to 220 with a 140 thermostat. but engine felt cool not really 200, I checked everything both pumps, changed it all still 200.. finally bought a more expensive gage, and matching sensor, and got OEM thermostat and now it reads 140. finally...
А что за датчик должен рядом стоять?!
helpful! Thanks
+will newman Glad it helped.
Thank you sir...
+jdcubbage You are welcome sir. I hope it works.
After watching I tested mine. Nothing happened but I left it grounded. I lifted my panel to check wires and boom, she pegged out. Turned out to be a loose wire!
+will newman Nice. Glad you figured it out.
Mine lights up but doesn’t pin up upon grounding it
Ciuod be a stuck gauge
I’ve replaced the sensor an it’s still not wrking.
Plus when I turn the lights on the gauge wrks I have a 4.3 merCruiser
Interesting. Mayne the needle is stuck. Or it could be a bad sender again. Are you sure you heated the motor up long enough?
We took it out to the lake an was out there all day in it
@@jimmiejohnson1404 not sure what the problem is. I would check all the wires
Chris Boats
Ok thank u!
Plus my fuel gauge goes from full to empty
Oil wrks
My temp gauge reads minimum (100F) all the time, how do I check what type of sender I have and what type of gauge it will be compatible with? My OEM gauge is Medallion 8-84 which appears to be defunct, I can't even find replacement units on eBay.
The one I put in was Seirra I believe. I do not know how to test the gauge. I am not even sure you can find an original on some of them. Sorry I can not help. If you have a mercruiser you could find one an auto part store most likely. They used some of the 4 cylinders in for lifts.
why is he breathing so hard for something so simple? lol
+Rugged Warrior I had to climb in and out of the boat with out setting my beer down
This does not mean the switch is bad . Most times the wire is loose at the gauge and it is not a switch issue
My sender was bad.
I wouldn't trust a mercruiser
+Ny Chan tell that to the millions of merc owners
My 1988 454 Merc still runs like a sewing machine.
I wouldn't trust an outboard!
@@riverrat8647 good luck moving a boat across the lake with a sewing machine
@@johnanddiann100, still running like a sewing machine. Pushing my 22’ Cobalt up to 62 mph. I’m very happy with the performance of my ‘Singer’. 🤷🏻♂️