How do I hook up my tachometer? Standard Ignition Coil If you have a standard ignition coil you can use the negative terminal of the coil for the signal source. If you have a high output capacitive energy discharge type coil it is recommended that you install a tachometer filter to prevent damage to the tachometer. Ignition Box If you have an ignition box i. If you have a 5V Tachometer signal you can: Install a ohm “pull up” resister from the 12V gauge power source ACC to the signal wire to increase the signal strength. Contact us to special order a tachometer that will work with the 5V ECU signal. Due to the high voltage of the signal from the HEI you should use a tachometer filter to prevent damage to the tachometer. Coil Pack or Individual Coils Distributorless Ignitions If you have a modern vehicle with “coil pack” or “individual ignition coils” distributorless igntion you will need a tach driver like the MSD to drive the tachometer.

How do I connect My Humminbird AS GR50 GPS to my Smartcraft

Anyway, I just recently fired up my boat two weeks ago in my driveway see sig below. I noticed that while all the gauges were working fine fuel, trim, oil pressure, engine temperature, voltmeter and speedometer , my tachometer wasn’t reading anything at all. I checked all the electrical connections and fuses, and I noticed that there was one that was connected to the alternator that was a bit loose at the crimp-on connector.

I went ahead and crimped it so that it was tighter.

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History[ edit ] The first mechanical tachometers were based on measuring the centrifugal force , similar to the operation of a centrifugal governor. The inventor is assumed to be the German engineer Dietrich Uhlhorn ; he used it for measuring the speed of machines in In automobiles, trucks, tractors and aircraft[ edit ] Cessna ‘s G tachometer 1, RPM and engine hours This can assist the driver in selecting appropriate throttle and gear settings for the driving conditions.

Prolonged use at high speeds may cause inadequate lubrication , overheating exceeding capability of the cooling system , exceeding speed capability of sub-parts of the engine for example spring retracted valves thus causing excessive wear or permanent damage or failure of engines. This is more applicable to manual transmissions than to automatics.

On analogue tachometers, speeds above maximum safe operating speed are typically indicated by an area of the gauge marked in red, giving rise to the expression of ” redlining ” an engine — revving the engine up to the maximum safe limit. The red zone is superfluous on most modern[ specify ] cars, since their engines typically have a revolution limiter which electronically limits engine speed to prevent damage.

Diesel engines with traditional mechanical injector systems have an integral governor which prevents over-speeding the engine, so the tachometers in vehicles and machinery fitted with such engines sometimes lack a redline. In vehicles such as tractors and trucks, the tachometer often has other markings, usually a green arc showing the speed range in which the engine produces maximum torque , which is of prime interest to operators of such vehicles.

Tractors fitted with a power take-off PTO system have tachometers showing the engine speed needed to rotate the PTO at the standardized speed required by most PTO-driven implements. In many countries, tractors are required to have a speedometer for use on a road.

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Speedometers by Chris Woodford. Excuse me, sir, have you any idea how fast you were going? That’s the question every motorist dreads being asked by a police officer at the side of the road. If you were staring straight ahead, not looking at the dashboard, you might have only a vague idea what to say. If you were looking at the speedometer, on the other hand, you’ll know the answer exactly, possibly to within one or two kilometers or miles per hour.

I ordered Dolphin Gauges for my truck for a number of reasons first, the fuel and temperature gauges in my truck either didn’t work or they weren’t hooked up, and the previous owner had after-market gauges mounted under the dash – which I didn’t like second, I needed an adjustable speedometer to compensate for the inch rear wheels on.

Your hub for horsepower Get first access to hit shows like Roadkill and Dirt Every Day Join free for 14 days now In , the Dodge Demon and Plymouth Duster were available with either the standard or rallye dash. The standard gauge panel shown only fits Darts and Dusters without the factory rallye dash option. This and panels with alternate gauge arrangements are available from Redline Gauge Works. The GPS speedometer includes 0—60 times, altimeter, compass, odometer, trip odometer, and quarter-mile times.

It picks up the GPS signal and you are ready to drive. No driving a measured mile or pushing buttons to calibrate. On the left is the Brand X gauge that is both larger and heavier than the Speedhut gauge. The GPS antenna is waterproof and magnetic, so it can be mounted on the roof of the car or anywhere on the dash where is exposed to as much sky as possible. The fitting simply threads into the back of the gauge like the one on the back of your cable TV box.

We asked for a pound range, the larger size, and the look and colors. The LED is for a light that can be set for high and low warning, and day and night brightness. The boost gauge reads a transducer that needs to see manifold pressure.

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If you have a VSS signal from a transmission or any 2-wire sender i. Make sure the dip switches on the speedometer are not set backwards. Open is pushed in away from the numbers. If no change is seen after you have made dip switch changes, verify that power was off when the changes were made.

SYSTEMS AVAILABLE FOR YOUR BOAT Operation Manual. 0. Part 1 MONITOR Part 2 Part 3 Part 4 MONITOR flash on screen at start up System Tachometer and Speedometer Part 3 Note: Look for RESET and Brightness arrows The System Monitor will power up .

You could get a chrome or a black bezel, but choosing colors was like the first Model T: So just about everyone had generic looking gauges, and the only thing that stood out was where you mounted them. If you like the nostalgic look of those old gauges, you can still get that sort of gauge today with either a mechanical or electrical sender. Auto Meter’s Custom Shop allows you to customize your gauges to match or contrast your car. With the various colors and sizes of automotive LEDs available, you can choose just about any color for the back lighting.

We contacted Dakota Digital to get some insight into the technology behind their new VHX series of gauges.


Hello Kevin, Thanks for all of your recent asssistance sorting out the wiring that I needed to get my old fishing boat back on the water. The snap together boat wiring harness for my accessories and the marine electrical panel rewire kit are great. I had them both installed in an afternoon. The last part of my project is to replace the engine harness.

Do you have any recommendations as to a good source for one of these? Thank you again for all of your help.

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Are you looking for good advice about sailboats and yacht equipment and systems? Why not invest in one of my sailing yacht books? It will save you money and valuable time. All you need to know about your sailing yacht or trawler yacht and motor yacht systems. From marine electrical and electronics systems to plumbing and sail handling, this is the place to find it. If you are purchasing a used-boat, or have boat-for-sale, or plan to take a yacht-charter, all the information you will need is here at the boat forum So where do you start?

There is a lot to know. I get asked regularly about what is the problem, and more importantly and how to fix a problem. I do this for a living, and also I sail and cruise my own yacht for fun!

Speedometer Hose Blew Off – Thought Boat Was Sinking!!!

Please read all instructions before proceeding. Recommended tools for this job include: Required supplies for this job include: Some equipment depends on your sensor model. See page 2 for details. To install the speed sensor, first find a location on the boat’s transom where the water flow is smoothest.

I have a lowe sun cruiser ss 21 foot 21ft four pointFishing addition Has less Then hours 60 hp Mercury Bigfoot four stoke has no plugs wires impeller has been completely serviced runs great Carpet and interior is in great shape has plenty of storage live wells trolling motor hook up .

You can spend several hundred dollars for a mechanic to install a new device, or you can take a weekend to do the work yourself. This is a relatively complex car repair, and you should not attempt it as your first automotive project. Steps Preparing Prior to Installation 1 Read your vehicle’s owner’s manual. You will find helpful information in the manual concerning the wiring around the dash cluster, as well as a schematic for the instrument panel that will help locating the correct hardware, wiring, components, etc.

The dimensions of a speedometer vary from vehicle to vehicle and after-market products are most certainly not universal. You can consult the parts department at a certified dealer to ensure that you order a speedometer that will fit properly into your instrument panel. Some have one wire for a dash light while some have two. Vehicles with an automatic transmission may also have a gear selection wire connected to the speedometer.

Ordering a component with everything you need is essential. If you would rather not go through a dealership but you have a trusted mechanic, he or she will likely have access to the same parts information and can also ensure that you order an appropriate speedometer. Pay close attention to which screws instead of removing every screw around the cluster since some of them may not need to be removed. Make sure you store the screws in a safe spot where you will not lose them while working on the installation.

After removing the screws, the face plate around the instrument panel will still be held in place by pressure clips. Use a flathead screwdriver to pry an edge of the plate forward gently and pull lightly on the plate until all of the pressure clips release.

How to Repair a Non Working Boat Speedometer