T150 - Champion Aerospace E Gap Gauge Tool

T150 – Champion Aerospace E-Gap Gauge Tool (for Slick Magnetos)

Available now on the Airparts.aero Marketplace.

Overview

The Champion Aerospace T150 is a genuine OEM, flight-critical specialty tool for setting the internal timing (E-Gap) on a wide range of Slick series magnetos. This is not a standard feeler gauge; it is a precision-calibrated "Go/No-Go" pin gauge specifically engineered for this single, critical task.

The E-Gap (Efficency Gap) is the precise number of rotational degrees past the magnetic neutral position where the magneto's breaker points must open. This timing is the most fundamental parameter in a magneto, as it ensures the points break at the moment of maximum magnetic flux, which is required to generate the strongest possible spark. Incorrect E-Gap timing will result in a weak spark, difficult starting, engine misfiring, and potential engine damage. The T150 is the factory-specified tool to set this timing correctly.

Key Features

• Genuine Champion/Slick OEM Tool: The only factory-specified and approved tool for accurately setting the E-Gap on Slick magnetos.

• Precision "Go/No-Go" Design: Engineered to a precise length, allowing a mechanic to quickly and accurately verify and set the correct point opening.

• Essential for Magneto Overhaul: A non-negotiable tool for any certified A&P/IA or repair station performing a 500-hour inspection, overhaul, or repair of a Slick magneto.

• Durable, Hardened Steel Construction: Made from high-quality tool steel to resist wear and maintain its precise calibration for a long service life.

Technical Specifications

• Part Number: T150

• Component Type: Specialty Tool, E-Gap Gauge

• OEM Manufacturer: Champion Aerospace (Slick Magneto Division)

• Material: Hardened Tool Steel

• Application: Setting internal E-Gap timing

Aircraft Compatibility

This is a piece of Ground Support Equipment (GSE) / MRO tooling. It is not installed on an aircraft but is the required tool for servicing the following magnetos, which are installed on the vast majority of Lycoming and Continental piston engines:

• Slick Magneto Series: 4300, 6300 (including 4301, 4316, 4330, 4333, 4345, 4370, 4371, 4372, 4373, 4381, 4382, 6310, 6314, 6320, 6324, 6331, 6350, 6351, 6361, 6362, 6364, 6367, 6377, 6379, 6380, 6382, 6384, 6393).

Applications

• Magneto Internal Timing: Used to set the precise point at which the contact breaker points open relative to the magnet's rotational position.

• Compliance with Maintenance Manuals: Its use is mandated by the Slick Magneto Overhaul Manual (L-1363) for 500-hour inspections and all internal timing procedures.

Why Choose the T150?

The T150 is the only tool for this job. "Close enough" is not an option in magneto timing. Using an improvised tool or a different method will result in an incorrect E-Gap. This leads to a weak, retarded spark, which causes poor engine performance, high fuel consumption, and can lead to cylinder overheating or detonation. The genuine T150 tool is a small, one-time investment that guarantees the fundamental timing of the magneto is set to the manufacturer's exact, certified specification, ensuring a reliable, healthy engine.

The engineering principle behind the T150 tool is the precise measurement of the E-Gap (Efficiency Gap). The E-Gap is the angle, in degrees of magneto rotation, between the magnet's neutral position (where it has zero magnetic field influence on the coil) and the open position of the breaker points. This gap is critical because the strength of the induced voltage in the coil is highest just after the neutral position, at a point of maximum magnetic flux. The T150 tool, in conjunction with a magneto timer, allows a mechanic to precisely set the points to open at this exact, manufacturer-specified angle (e.g., 10°). This ensures the primary circuit collapses at the instant of peak magnetic energy, generating the most intense, high-voltage spark possible for clean and efficient combustion.

Note: The T150 is a precision measuring tool. It must be used by a certified A&P/IA mechanic in strict accordance with the Champion/Slick L-1363 Overhaul Manual. The tool should be handled with care and stored properly to protect it from damage.

Documentation

• Champion/Slick L-1363 Overhaul Manual: This is the primary maintenance document that details the mandatory use of the T150 tool for all internal timing procedures.

• Champion Aerospace Website: Full application data and technical support are available on the official Champion Aerospace website.