It seems to be clogged I gues I tried to put a paper clip into the hole and it wont go in. If any are present, replace the speedometer tube. You may freely link to this site, and use it for non-commercial use subject to our. So simple, so clean, why didn't they think of it sooner? Is this commonplace on ouboards? I had a Montauk with an '82 Johnson 90 and I thought it was one great idea. Drill a hole in the transom, well above the waterline, for the pressure tube to pass through. If you want it to be off with the ignition switch, take the positive feed from the ignition switch 'A' post purple wire to the gauge.
Have you tried the tiny drill bit in the hole first then compressed air? Once finished, this hole can be made weather proof with a silicon gasket gel that has dried around the hole and wires. Reconnect the hose to the speedometer. All 3 of the Mercuries that I have owned had had this. Install the tachometer into its mounting bracket in the place it will be secured to on the dashboard. We welcome your comments and suggestions. Step 2 - Locate the Speedometer Tube When checking for the cause of the malfunction, you need to locate the tube of the speedometer. You'll want the light to be controlled by a switch.
It is compressed air by means of water pressure. If the tube is cut or has a hole, replace the tube. The casting has a groove around the hole that lets the pressure sneak by the stainless liner to the vertical hole. This spinning crankshaft sends horsepower to the street. 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.Next
Use an existing hole in the firewall to pass the black and green wires through to the engine bay. Perhaps others have done it better. The other problem was the plastic barbed fitting on top of the gearcase was very easily broken off. Where is the best place to mount a speedometer pickup at on a single engine transom? If a wire tie is pinching the tube, remove and replace the wire tie, making sure not to pinch the tube. When the boat is still and the hose is removed from the back of the speedo, no water should pour from the hose. The units allow you to do this in the on-screen software.Next
Also good to clear a trailer bunk or when beaching a boat. If the speedometer pointer gives a reading, the paddlewheel sender was probably not sending a signal to the speedo and is not working. If it is, replace it with a new one. I found a very tiny hole about 2 inches up from the bottom of the out drive is that it. I might just have to go and buy a fish graph with paddle wheel speedo, but it's too bad the water pressure speedos seem to go bad with age. If you see a hose coupling between the lower unit and mid-section, seporate it there and blow compressed air in towards the lower unit.Next
There should be solid non-aerated water running through the pitot tube. When you heat the shrink, it also forms the vinyl tube to the barbs on the fitting. If you haven't checked out the Lido's do so. For keeping the speedo tube on the fitting, I recommend using good quality heatshrink as a clamp. Can you just connect any speedometer to this tubing, or is it calibrated for a particular gauge mechanism? What should I use to cut the hole in my dash? A secure ground connection will help the tachometer to run correctly.
No more worrying about tire size, gear ratios or even electronic signal convertors. Right in front and near the bottom of the lower unit, is a hole that gets plugged up. Run a line to your negative buss and a hot wire to a switch on the panel. The wedges can be used either thin end up or down to achieve as close to a 12 transom position as possible. Use a tachometer to know when to shift and when to stop pushing a motor for more. Nick this out with a hacksaw blade or pocketknife.Next
In The Lower Unit Where The Speedometer Pickup Is. I am slightly concerned about hooking up electrical components to a large fuel tank. It's best if you hook the hose up to shop air regulated down to 30 psi or so, and drill till it shoots air at you. Step 8 - Fix the Speedometer If the speedometer needle does not move, remove the tube from the speedometer. If you've got a Mercruiser manual, it shows a good picture of the cross section where the pitot tube is. Connect the green wire to the negative post of an existing electronic coil or Electronic ignition system using a tachometer adapter as a connector. If yours is stopped up, clean it out with an.Next
This unit is not repairable by the consumer. The only other part on the gearcase pitot that can fail is the plastic fitting on top of the lower. If So, How Big Of A Job Is It To Get Into The Lower Unit And Fix It? Step 5 - Replace the Tube Check to see if there are any holes or cuts on the tubes. If this is not a option for you then find the cleanest water location air will effect it. If the gauges are internally illuminated, there will be a switched +12V for the lamp and in the case of the speedo, a ground as well.Next
Forum posts represent the experience, opinion, and view of individual users. Well, it was a great idea that didn't work too well for two reasons. Prolonged idleness in the water may attract barnacles or algae. Connect this red wire so that when the car is started the tachometer will begin operating. But like I said earlier, if they can be calibrated can the temp be calibrated too? Tried all kinds of things chain, nylon webbing etc to give the puller something to hook to. When I purchased it the fuel guage and speedometer were not connected. You simply stuck the hose onto it instead of drilling holes into your transom and mounting a conventional pitot tube.Next