Mercury outboard speedometer not working. Mercury SmartCraft Gauge Stops Working

Speedometer bsd.acc.chula.ac.thy 90HP

Mercury outboard speedometer not working

Where the hose clamp can rust and break, allowing the whole throttle body to drop off the bottom of the supercharger. If the tube is cut or has a hole, replace the tube. Step 5 - Replace the Tube Check to see if there are any holes or cuts on the tubes. When I blow from the elbow into the motor little air escapes, if I blow in thru the hole on the motor air comes out a different place than the 90 degree elbow. Again, now in 2018, we see fewer and fewer of these seals failing.

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mercury speedometer hookup??? Page: 1

Mercury outboard speedometer not working

Have you tried running the boat and pulling the tube off the back of the speedo? Consider upgrading your membership for less than a box of tackle! I assume there may be a block in the tubing section in the motor. If it is connected to the outboard motor, just release the quick-connect joint. If the speedo moves, it's likely the pitot is plugged. Or only to the dealer or boat builder level personnel? These little latches utilize, basically, a bicycle brake cable to operate the latch. Fixing this issue required the unbolting of the engine mounts and pushing the engine up out of the cradle mount to change out the bell crank that attached to the shift shaft going down to the lower unit. Then the timing chain could be put back on and get the engine back in time without any issues. The most common cause of speedometer failure is a plugged pitot tube.

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Speedometer Stopped Working????

Mercury outboard speedometer not working

We welcome your comments and suggestions. The most common type of boat speedometer has a tube called a pitot tube that runs to the back of the transom, or through the lower unit of the outboard motor. I removed the tube blew air from both ways thru tube good pressure. Your Name first or full name Your Location e. It really helps us out and we thank you so much for your support! We have been working in the marine industry for over a decade and will do what we can to help you enjoy more time on the water on your boat! Which, when it was stuck down, it never would. Sometimes when they were cold. The usual problems are a blocked orifice little hole in the arm , a blocked vinyl tube and a disconnected, broken, cracked or holed vinyl tube.

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Erratic Tachometer, Two

Mercury outboard speedometer not working

The Shift Crank Sticker Another problem that was going on during those first few flagship years of the Mercury Verado is that the bell crank would seize up and stick; leaving you unable to control the shifting of the engine! Look under your boat's dashboard and find the tube running from the center of the back of the speedometer. I Tried Compressed Air And No Luck. Remove and replace the sensor. When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. You could also try taking the tubing off the back of the speedo and blowing compressed air down the line.

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How to Fix the Speedometer Hole on a Mercury Outboard Motor

Mercury outboard speedometer not working

The lesser-known issue was the Manifold Absolute Pressure Sensor that is located on the top of the intake manifold. It goes into depth about The Powerhead Oil Pump Leak Out Again, going back to the earlier years. Is that literature available anywhere? How do I address clearing this or getting air to flow to the 90 elbow from the motor. You can also blow up the lower unit. Which takes us to the next thing about that cowling. In which, we all owe a good thank you to the standard that was set by the Mercury Verado and all its problems! If the timing is incorrect by more than 1 tooth, then the pistons can come up and smash the valves down, destroying the engine! Being that the engine is an interference motor, once it jumps time, it can smash the valves to pieces and be nothing more than a really good anchor! You would notice a higher than normal idle, or an extremely high idle. After a set period of time, the lift pump would turn off and let the operator know that the lift pump timed out.

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mercury speedometer hookup??? Page: 1

Mercury outboard speedometer not working

Who would have thought that would happen? As soon as a hole gets in this though, the engine will basically suck in so much air that it will rev straight up, to almost wide open throttle! Even worse, a wave of water can come up over the engine and suck in water through the exhaust, blowing up the powerhead! These seals that can get stuck and roll over, locking the driveshaft into the powerhead, which is not a good thing, is most assuredly a problem. Do you have Mercury outboard engine problems? It is compressed air by means of water pressure. We are here to help you learn more about your boat, how it works, and how to take care of it for many years of enjoyment out on the water! I don't think we'll see Brunswick doing that anytime soon. This could be a tricky little problem that gets some people to scratch their heads. I find the prohibition against using a dielectric grease to seal the connector bodies rubber mating surfaces to be unusual. The trim sensor lets the engine know where the engine is located in the trim range. When you inspect the speedometer tube in the lower unit, you have the opportunity to lubricate the lower unit as well.

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mercury speedometer hookup??? Page: 1

Mercury outboard speedometer not working

And you can also donate by or on the right hand of the screen! When the compressed air blows freely through the tube, reconnect the tube to the back of the speedometer and blow through the tube again while your assistant watches the speedometer. It is a small square component with 2 yellow wires a grey wire and a red wire connected. When you are done cleaning the tube, attach the tube back to the speedometer. The tachometer signal is typically taken from a half-wave rectifier tap in the. And it is not just the Smartcraft side of things. But that is just part of the boating world.

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mercury speedometer hookup??? Page: 1

Mercury outboard speedometer not working

On the sides, on the front under the supercharger, all over the engine! What is the year, make and model of your boat? This is not something only true about Mercury. The design of the Verado is super simple when you get down to it. I recently bought a 1989 basstracker 17' pro. However, if not immediately fixed, can be in for a lot more trouble than you can imagine. When these engines came out, they revolutionized the marine industry. Removed tube from back of speedo when moving, no air or water was coming thru. Best Regards willy gee In the Heart of Sunny Uptown Madeira Park.

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