Works great and never clogs, but does get kicked up once in a while. You need to be clean water when the boat is up on plane. Drill a hole in the transom, well above the waterline, for the pressure tube to pass through. Sender is Gray for Johnson. Generally these are mounted plumb, that is. The units allow you to do this in the on-screen software. Description:Rectangle shape 6 digital display hour meter with installed wireEasy-to-read hour meter with novel designWithstand vibration and shaking up to 8gCompact size, can be operated within a wide voltage rangeApplications: Fork lifts, buses, trucks, golf carts, off road vehicles, etcSize L x W x H : Approx.
Installations outside that range will also require fabrication and installation of shims to bring the angle into range. Depot carries is only 2mm bigger. Accurately measuring the speed of a boat is a complex problem, but most of the hard work has already been done by instrument manufacturers- all that's left for the boat owner to do is to install a handful of parts, get out on the water, and start competing for every extra knot of speed. Nick this out with a hacksaw blade or pocketknife. .
When the boat is in motion, water flows into this tube, compressing the air in the tube. That way you can go out for a test run and see how it cooperates. I had a Montauk with an '82 Johnson 90 and I thought it was one great idea. A lot less cutting with a lot more functionality. On the plus side for paddle wheels is the fact that they can measure slow speed of a knot or two which a pitot speedometer cannot. Reconnect the hose to the speedometer.
Those speedos also will not work with 1 strand of seaweed on it and 13's love to pick up grass. Offset mounting slots so you can use original screw hole patterns. Pump temperature also helps prevent damage to the engine if it's overheating. If the speedometer pointer gives a reading, the paddlewheel sender was probably not sending a signal to the speedo and is not working. I poked drill bits into the pitot and felt nothing. Once the gauge is mounted in the console you simply plug the speedometer hose pressure, not vacuum from the pitot tube activates the gauge into the back of the gauge.
Small 4 pin connector for the Commander Tachometer. I tried cleaning out the pitot on my lower unit with a drill bit but that didn't seem to help. The old style sender is designed for a 12 transom. Re: How do you clean out a speedometer pitot? Sail easy with boat gauges and instruments Sailing or boating on the ocean. If the tube is cut or has a hole, replace the tube. Blow out any water that may be trapped in the hose. Get yourself an extra drill bit and rough up the shank with a grinder.
So you would probably have enough room to mount your speedometer sending unit vertically on the transom using the footprint of the aft edge of the bottom of the strake as a guide. Cut the silicone with a sharp knife, without damaging the pitot tube, then step out of the boat and find the intake end the one under water either at the transom or under the bottom of the boat. The new style sender will accommodate transom angles from 13 to 20. You should be able to get a drill bit that deep into the stainless pitot sleeve. Then you can adjust in you mind how fast you are going, no matter what the speddo says.
The other problem was the plastic barbed fitting on top of the gearcase was very easily broken off. Whatever the boat gauges and instruments to suit your needs, something great is sure to wash up thanks to the options available right here on eBay today. Probably closer to 10 mph on my older boat 15+ years ago. Finally, don't forget your transom is wood core. Hopefully I can do that later. Make sure the pitot mounting plate is aligned exactly with the bottom of the hull. No, it's not setup like that.
Eventually I broke thru the clog and water poured out of the hole. With the boat out of the water, drill a hole in the hull for the transducer. Careful with the wire attempting to poke it out often will push and compress the vegetation into a hard solid plug. A small hole was found in the leading edge of the gearcase and ran up to a plastic barbed fitting on top of the gear case just in front of the motor's pivot point. Re: Speedometer Pickup mounting location? Another type of boat speedometer uses a tube within the hull to measure the velocity and pressure of the water as the boat moves and uses this information to calculate speed, according to HowStuffWorks. Choose a spot for the transducer through-hull. Re: How do you clean out a speedometer pitot? There's a vast array of boat gauges and instruments, so a little research will help point you in the direction of exactly what you're after.