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Spark Plug Gap Expansion Tool
MFR Model# ATS483
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Overview
| This tools expands the spark gap of any massive electrode aviation plug safely and efficently -- with the key word being safely... In the past when you over-gapped a plug, and wanted to expand it back out, you would resort to using a screwdriver, dental pick, or whatever else was on hand. But this was almost a sure way to do damage to the plug. Because you would invariably push the screwdriver between the electrodes, which would cause pressure to the center electrode and risk cracking its ceramic casing. The end result would be either reduced performance or total spark plug failure. Not so with this tool. |
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WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov. |
Specifications
- 5.6" long, .375" diameter.
- Made of Nickel-Cadmium plated tool steel in the USA.
Instructions
- To use this tool, simply hook it under the outer electrode and apply a bit of downward pressure to gently and safely expand the gap without any contact to the center electrode.
Reviews
Verified Purchase
Spark Plug GAP Expansion Tool
The bottom edges need to be rounded so the tool does not dent the inside perimeter of the plug.
Verified Purchase
Spark Plug GAP Expansion Tool
Very sturdy and effective. Practice on a spare plug first! There is some finesse required.
Verified Purchase
Spark Plug GAP Expansion Tool
Very easy to use. Be gentle and it doesnt mar the other side of the plug as you pry. Only takes a nudge to adjust.
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Spark Plug GAP Expansion Tool
Product works but needs more detailed instructions on how to place it
Verified Purchase
Spark Plug GAP Expansion Tool
Great tool. Works well.
Verified Purchase
Spark Plug GAP Expansion Tool
Verified Purchase
Spark Plug GAP Expansion Tool
This tool makes the gapping easy! A simple MUST have tool!
Verified Purchase
Spark Plug GAP Expansion Tool
Perfect tool for the job.
Verified Purchase
Spark Plug GAP Expansion Tool
This tool is perfect. It’s shaped like an oversized exacto knife. I bought 50 govt surplus plugs that had no gap. This opened them up safely.
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Spark Plug GAP Expansion Tool
Q&A
Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.
The documents indicate it will work on all massive electrode plugs, but no mention of the BY series twin electrode projected core nose units.
No, this only works for massive plugs.
