With power off, it is normal for the pointer to leave zero. Michael I've not had an Autometer in my hands, but most are built so that the guts holding the Bourdon tube are attached to the back of the cup with a couple of screws. I should include this in case you aren't already aware of it. Make sure you have a good ground to engine and battery negative terminal. Turn on the power to the tach.
It will stay on until the engine speed drops below the set point. Mine works great by he way. If you have a logger and plan on increasing boost, you're going to push it as high as you can run and not knock or lean out. I used to send my factory tach off the deep end at 7000 when the car would hit the 6250 rev limiter. Disregard tach readings that occur before engine is started.
While holding the button, start the vehicle and continue to hold the button until the pointer sweeps to full scale and stays at full scale. The tach will now use the selected shift point, until set differently. So what I gather is that its just supposed to be sitting at the top of the box yes? Ignition manufacturers recommend that the ignition and coil be matched according to criteria which they establish often that the ignition and coil be products of the same company. On models 2300, 2301, 2303, and 2304, the washer and nut are mounted on the opposite side of where the screw is inserted. When the switch is closed pushed , the Blue lead will be connected to 12V Power and the Low Set mode will be in effect.
Loosen the screw at the center back of the cup, turn the bezel, then retighten the screw. If you think about this,, if you launched at 6000rpm and maintained that rpm for a 10 second pass, the engine would only turn over 1000 revolutions, and the coil would only fire 500 times, ain't that something! You can tell then they really take pride in the way they run the site. When shifted out of 1st Low , the switch returns to open and places the shift point in the High Set mode. Rotate dial no more than 180 degrees in either direction. It does not matter how far away it is to get to this pre-marked 2 mile distance. I almost wonder if it is a tach issure causing the problem or possible msd box issure? Wire installations should be neat and tied down to prevent tugging and fraying of wires at connections.
The tach pointer may not always rest at zero. Also remember that we are looking from the Bottom of the chip! I then kept reducing the resistance until the tach stopped responding. Attach the base using screws provided or use a pop rivet tool. Anything can be off by a few hundred. I think that will do it. G'day, I had the same problem until I realised the selector switch in the back of the guage was set to 4cylinder instead of 8.
With the wonders of data logging and electronics sampeling at 500Hz, and logging at 50Hz. To insure steady, accurate readings, make necessary adjustments to your ignition. Once you have selected a mounting location, you can run the four wires that operate the tachometer. Chat with others, create a build thread, post questions and answers. Problems such as bouncing ignition points, bad plug wires, defective ignition capacitor, or arcing distributor cap may cause erratic readings on your tachomter.
Check your owner's manual for a key that indicates what is available in the fuse box. The numbers for 6 and 8 cylinder tachs are 19. The following instructions that were provided by Autogage explain how to set the shift point. For example, if the engine ignition puts out 4 pulses per revolution 8 cyl. The pointer will drop to half scale.
It is possible to place Shift-Lite in other positions in accordance with driver preference and vehicle mounting requirements. That's only the gauge itself. A yellow bulb cover is included to reduce the brightness for night driving. Autometer has designed their tach to be used with four, six and eight cylinder engines with the only requirement being that you must calibrate the tachometer during the installation process. It looks like the arc of the box is the size of about 2 psi tick marks on the gauge, so is it safe for me to assume 10 means 12, or 13 means 15, and such? If you're using an adjustable aftermarket tach, setting it for 4 cylinders and using this setting should get you going. It's like the size of 2 cigarette packs. Loosen both bolts holding the shock strap to the mounting foot.
If there is access, and if you can work with delicate parts, you can make adjustments to where the needle rests by denting the Bourdon tube- dent the inside to lower the reading, and the outside to raise it. Michael Ah lots of responces! Wiring your new Autometer tachometer into your car will complete the installation. Mismatching coil and ignition types is often the cause of incorrect tach performance. Otherwise, to truly calibrate it, you pull the cover off and loosen the screws that hold face and rotate it. Special Note: Your model 2302 tachometer operates off your car's ignition. When selecting a mounting location for the tach base, make sure the tachometer can be adjusted to the proper position for best visibility. No, we do not hand out car sponsorships.
If you have an 8000 rpm tach it might be off as much as 160 rpm at any point on the tach. I have a msd digital 6 box and autometer pro-comp pro-stock tach everything is fairly new. I did a search for this information and could not find it using keywords Tachomter and Tach. I couldn't begin to tell you what the tach says, I never look at it, but. After a lot of work, I found a formula that will get the settings as close as possible. The special design of the tachometer base allows for a variety of mounting possibilities. For external Shift-Lite models, plug shift light into tachometer connector.