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Aircraft Spruce E25 Timing Indicator User Manual

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Aircraft Spruce E25 Timing Indicator User Manual

How to Use the Timing Indicator E25?

Step-by-Step Instructions:

  1. Remove Spark Plugs: Take out all top spark plugs and install the piston stop in the No. 1 cylinder’s spark plug hole.
  2. Attach the Timing Disc: Secure the timing disc to the aircraft propeller spinner using the supplied rubber bands.
  3. Confirm Top Center:
    • Observe the reading on the disc and adjust it to the exact midpoint of the degrees toward the T.C. mark.
    • Remove the piston stop and confirm the compression stroke by feeling the air release from the spark plug hole.
  4. Set Magneto Timing:
    • Move the propeller slightly past the required magneto timing setting.
    • Ensure breaker points start opening at this position (checked using an Eastern Model E-50 Synchronizer).
  5. You have now found top center on the compression stroke.
  6. The breaker points should just be starting to open at this setting.

Setting the Magneto Timing

To check or set the magneto timing, follow these steps:

  1. Rotate the propeller in the opposite direction past the specified magneto timing setting.
  2. At this position, the breaker points should just begin to open.
  3. Use an Eastern Model E-50 Synchronizer to verify the correct opening of the breaker points.

Note: A light tap on the dial ensures accurate timing.

Features of the Timing Indicator E25

  • Accurate Timing Measurements: Ensures precise alignment of the ignition system.
  • User-Friendly Design: Lightweight and easy to install on the propeller.
  • Durable Construction: Made with high-quality materials for long-term use.
  • Requires Minimal Maintenance: Occasional lubrication keeps the pointer functioning smoothly.

Specifications of the Timing Indicator E25

FeatureSpecification
ModelE-25 Timing Indicator
MaterialHigh-grade aluminum & durable plastic
WeightLightweight for easy handling
UsageAircraft engine timing calibration
Accessories IncludedPiston stop, rubber bands, timing disc
Maintenance RequirementMinimal (occasional lubrication)

Troubleshooting Guide

Issue: Incorrect Timing Readings

  • Solution: Recheck the piston stop positioning and confirm the pointer is accurately aligned with the T.C. mark.

Issue: Pointer Stiffness or Lack of Movement

  • Solution: Apply a small amount of oil to the pointer bushing for smooth operation.

Issue: Propeller Rotation Not Smooth

  • Solution: Verify that the piston stop is not obstructing movement.

Setting the Magneto Timing

To check or set the magneto timing, follow these steps:

  1. Rotate the propeller in the opposite direction past the specified magneto timing setting.
  2. At this position, the breaker points should just begin to open.
  3. Use an Eastern Model E-50 Synchronizer to verify the correct opening of the breaker points.

Note: A light tap on the dial ensures accurate timing.

FAQS

How is speed detected?
Radar is one of the most widely used tools for speed detection
What is the engine indicator used to determine?
An engine indicator is used to determine mean effective pressure (MEP)and indicated horse power(IHP).
How does a speed indicator work?
An air speed indicator (ASI) is a device for measuring the forward speed of the aircraft.
Which indicator has high accuracy?
 The Moving Average Convergence Divergence (MACD) indicator
Why should we use indicators?
Indicators inform other drivers what you want to do so they can make adjustments accordingly.
What indicator is the most accurate?
RSI and Bollinger Bands. proved to be the most reliable indicators, consistently delivering high win rates across both testing periods
Which indicator is most common?
 Litmus indicator solution turns red in acidic solutions and blue in alkaline solutions.
What is the simple definition of indicator?
An indicator is a measurement or value which gives you an idea of what something is like.

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