DrakxQueen3iv
20.04.2021 5:10:05
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Similarly, should magneto touch flywheel? It should not be touching. Use a standard size business card to adjust the air gap between the coil and flywheel magnets.
The magnetic coil on a Tecumseh engine interacts directly with the engine's flywheel in order to provide for proper motor operation. The distance between the two parts is known as the air gap. An improperly spaced air gap can result in engine failure. here
Additionally, what is the air gap on a Tecumseh coil? [links]
have a rototoiller with a 5hp briggs and stratton motor, model#135292 type 0158 01. Whats the gap between the flywheel and coil supposed to be set at. Thank you
He's right, a standard manila parts tag works well also.
.012-.016 is the measurement but the tag or a card works good because it conforms to the shape of the flywheel.
Insert it between the mag and the flywheel, loosen the magneto mounting screws. If the flywheel is turned so the magnets are there, they will pinch the tag and just tighten the screws. here
There is a special guage for this, but I've been using a standard business card for years without problems. [links]
Inspect the engine flywheel, flywheel magnets and ignition armature legs for dirt, debris,corrosion or rust and clean them with 220-grit sandpaper. [links]
A 16 horsepower Briggs & Stratton engine that won't fire is likely the result of a faulty ignition armature coil. Most ignition armature coils cannot be repaired and must be replaced. In some cases, the timing might be off because the engine flywheel to ignition armature coil air-gap setting is not at the proper distance. Additionally, dirt, debris, corrosion and rust on the flywheel magnets and ignition armature coil legs can cause a low-spark or no-spark condition that can be remedied by cleaning the ignition components thoroughly.
Disconnect the spark plug wires and remove the spark plug from the engine with a 5/8-inch spark plug socket and ratchet wrench. Dual cylinder model engines have two spark plugs, one located on either side of the air filter. In single cylinder models, the plug is either at the front or rear of the engine.
Adjust the ignition coil armature to engine flywheel air-gap for proper ignition armature coil fire, if needed. Unscrew and remove the retaining bolts from the ignition armature mounting studs with a socket wrench. Slide the ignition coil ground wire connector from the ignition armature retaining bolt. Disconnect the stop switch wire connector from the ignition armature coil tab. Remove the ignition armature coil from the engine assembly. here
Push the stop switch ground wire connector onto the new ignition armature coil tab. Set the new ignition armature coil onto the ignition armature coil mounting studs, against the flywheel magnet. Slide the ignition armature coil ground wire connector onto one of the ignition armature coil retaining bolts; insert the ignition armature retaining bolts through the ignition armature coil legs. Pull the ignition armature coil backward away from the flywheel and tighten the retaining bolts temporarily with a socket wrench. here
By Tom Cole
Almost every day someone calls or emails us asking how to set the ignition timing on their engine. It is an important topic because as little as one degree can be the difference between an engine that runs up front and an engine that sputters and pops its way to last place. In this article, I am going to describe what I believe to be the most accurate and reliable method to set the timing on a Briggs and Stratton™ Engine. If you are using an ARC adjustable hub flywheel, begin by setting the hub index mark in the middle of the degree marks on the aluminum body. This will give you the maximum amount of adjustability after you set the timing based on the cam manufacturer’s specifications. The adjustable hub gives you an “at the track” advantage, because it allows you to easily advance or retard the ignition timing to tune for variable conditions.
The first thing you must do to set the timing is to identify the exact position of the flywheel’s magnet in relation to the coil when ignition occurs. To do this right, you need a plain old induction timing light and a car battery. Some folks will tell you about aligning the trailing edge of the magnet with the center of the little button just in front of the left leg of the coil, and for the most part, they are correct. But there is no such button on the Animal coil and factors such as coil gap make this method only a close approximation. [links]
Posted by Tom Cole on 8th Oct 2014
Below is the technique I use to find the exact trigger point using a timing light: