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The GTV Feeler Gauge (9/31) is a professional-grade measurement tool designed for mechanics, engineers, and DIY technicians who require precise gap verification and adjustment. It offers exceptional accuracy for critical tasks such as checking valve clearances, setting spark plug gaps, and calibrating electrical contacts. While the tool is built for high performance and reliability in demanding workshop environments, users should note that the individual blades require consistent maintenance to prevent corrosion, especially when used in humid or oily conditions.
| Model Part Number | 9/31 |
|---|---|
| Brand | GTV |
Yes, these are highly effective for checking and adjusting spark plug gaps to manufacturer specifications.
Yes, the metal construction is resistant to high temperatures, but ensure the engine or component has cooled to a safe handling temperature before measuring.
The blade should feel a light 'drag' or resistance when pushed through the gap. If it moves too freely, the gap is too large; if it forces its way through, the gap is too tight.
Use a degreaser or a clean rag with a small amount of solvent, followed by a light application of fresh machine oil to protect the steel.
Yes, the pivot assembly is designed to be disassembled by removing the pivot screw, allowing you to use individual blades if necessary.
Loosen the locking thumb nut slightly or wipe the pivot area to remove accumulated grime.
Use a fine-grit abrasive pad or a mild cleaning solution to remove the rust, then immediately wipe clean and apply a thin layer of protective oil.
Check that the surface being measured is perfectly clean; even minute dirt buildup can cause the blade to bind prematurely.
To begin using your GTV Feeler Gauge, simply loosen the thumb nut to fan out the required blade. Avoid using excessive force when inserting the gauge; it should slide into the gap with light resistance.
Care Instructions:
