What would be the approximate gap clearance...

Question 1 / 270705eccefa1bacbc34ba4d47717

Question 1 of 270705eccefa1bacbc34ba4d47717

What would be the approximate gap clearance value for a flywheel magnetic pickup speed sensor as found on most medium and high speed engines?

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Question 1 of 27070

What would be the approximate gap clearance value for a flywheel magnetic pickup speed sensor as found on most medium and high speed engines?

🔍 Key Concepts

• Typical air gap ranges for magnetic pickup sensors on medium/high speed diesel engines • Relationship between sensor signal strength and distance from the gear teeth or flywheel teeth • Why excessively small or large gaps can cause failure to read or physical damage

💭 Think About

• Which of these ranges looks like a realistic mechanical clearance between a stationary sensor and a rotating flywheel tooth? Think in thousandths of an inch. • What would happen if the sensor were set too close to the flywheel teeth? What about too far away? • Compare these ranges to clearances you might see in things like spark plug gaps or bearing clearances—which one is in the same order of magnitude?

✅ Before You Answer

• Convert the answers mentally into thousandths of an inch ("thou") and ask which is a typical small clearance used in engine sensors. • Eliminate any ranges that are clearly too large to avoid contact with a fast‑rotating flywheel. • Recall from manuals or experience: magnetic pickups usually specify a gap on the order of a few thousandths of an inch, not tenths of an inch.

Question 1 of 27070

What would be the approximate gap clearance value for a flywheel magnetic pickup speed sensor as found on most medium and high speed engines?

.001 " - .003 "

.022 " - .033 "

.222 " - .333 "

.333 " - .666 "

Question 1 / 270705eccefa1bacbc34ba4d47717

Question 1 of 270705eccefa1bacbc34ba4d47717

What would be the approximate gap clearance value for a flywheel magnetic pickup speed sensor as found on most medium and high speed engines?

Back

Question 1 of 27070

What would be the approximate gap clearance value for a flywheel magnetic pickup speed sensor as found on most medium and high speed engines?