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Tuneup Procedures

Tuneup Procedures

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With the spark plug socket on the 3/8" ratchet, loosen all four plugs until they can be unscrewed by hand. Use the extension and socket to screw out the last few threads by hand, then remove the plugs. Note: I find that a 3inch extension between the ratchet and spark plug socket is needed for cylinders #1 and #3. Note regarding spark plug ...

Initial Spark Advance Table Calculator

Initial Spark Advance Table Calculator

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Creating an Initial Spark Table for Tuning. This is a tool for establishing a baseline spark advance table for your tuning efforts with MegaSquirt® or MicroSquirt® controllers. It is designed to work in Mozilla Firefox, though it may work with other browsers. It is based on the 'rules of thumb' presented here: Making a Spark Advance Table

Configuring MegaSquirtII

Configuring MegaSquirtII

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Maximum Spark Duration (ms) (max_spk_dur) is the amount of time your MegaSquirtII™ (or MicroSquirt®) controller tries to wait before starting another charging cycle. MSII tries to fit the dwell time + max. spark duration into the time between sparks. If it can fit them, then the full dwell time is used.

Ignition System Basics

Ignition System Basics

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Ignition System Basics. The four stroke gasoline engine relies upon an ignition system that can deliver an electric current across the spark plug gap. Air and fuel is drawn into a cylinder during the intake stroke. This mixture is then compressed to raise the temperature of the air fuel mixture. As the temperature increases, the fuel is vaporized.

Setting Dwell Versus Timing on Points Engines

Setting Dwell Versus Timing on Points Engines

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 · Your dwell, and thus your points gap, needs to be set before you get out the timing light. To set the dwell, remove the distributor cap and rotor, ground the coil wire and remove all the spark plugs from the engine. Set up your dwell meter and hook up a remote starter.

Checking the dwell angle | How a Car Works

Checking the dwell angle | How a Car Works

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A dwell meter connected between the distributor or ignition coil and earth registers the dwell angle on a scale, and must remain steady at the prescribed figure while the engine is running. If the dwell angle is not the same for all cylinders, the result is rough running and poor fuel economy because the moment the sparkplug fires varies from cylinder to cylinder.

Tuning Your MicroSquirt(R) Controller

Tuning Your MicroSquirt(R) Controller

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Failing that, you can try is setting the dwell to milliseconds while idling. If the engine runs rough or dies, the spark output setting is likely correct (since the coil doesn't have enough current to make a reasonable spark). Note that extended running with the Spark Output set incorrectly can burn out the coil and/or the module.

Four Steps in Fertilizer Calculations

Four Steps in Fertilizer Calculations

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Question 2 calculations There are a couple ways to approach this. Figure out how much fertilizer is applied per acre: 7,692 #2648 / 25 ac = #2648/ac Now calculate how much elemental P and K are applied in #2648/ac.

Device dwell time calculation

Device dwell time calculation

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 · Device dwell time calculation So I'm not a developer but I'm making an attempt at putting together charts of visitor dwell time from the scanning API. The scanning API posts a timestamp of when a device is seen, but there's no data element indiing when a device leaves.