SKU:16-3200
Precision-engineered for Twin Cam Harley engines, the Jims Piston Ring End Gap Tool speeds up and improves the accuracy of piston ring end-gap measurements for faster, more reliable engine tuning.
The tool’s flanged design ensures the piston ring sits squarely in the cylinder bore, delivering consistent measurements every time.
The proprietary cutout lets you test oil ring gaps by installing any ring—top, second, or oil control rails—into the tool, then inserting it into the cylinder bore to view the end gap in the key slot.
A standard feeler gauge in the key slot yields precise readings, helping prevent engine issues caused by improper gaps.
Designed to fit standard size piston rings for Harley Davidson Twin Cam engines, it supports piston bores of 3.875 inches and 4.00 inches, covering FXST models from 1999 to 2008.
Made in the USA, the tool combines durability and precision in a compact, lightweight form for quick measurements with minimal guesswork.
Along with the tool, accessory items such as the Mini Motorcycle Lift Tool, Gasoila Red Varnish Sealant, and Gasgacinch Gasket Sealer are recommended to support comprehensive engine repair and maintenance tasks.
Tool makes measuring ring end gap faster and more accurate.The Jims Piston Ring End Gap Tool is designed to enhance the precision and speed of measuring piston ring end gaps, making engine tuning and maintenance more efficient. Its innovative flanged design ensures that the piston ring fits squarely within the cylinder bore, providing consistent and reliable measurements every time. This tool is uniquely equipped with a proprietary cutout feature that allows users to test oil ring gaps easily by simply installing any ring—top, second, or oil control rails—into the tool. Once installed, the tool is inserted into the cylinder bore, and the end gap can be viewed directly in the key slot, simplifying the measurement process for mechanics and enthusiasts alike. The use of a standard feeler gauge in the key slot ensures accurate readings, helping to prevent engine issues caused by improper ring gaps. This device is specifically built to fit standard size piston rings for Twin Cam engines, compatible with piston bores of 3.875 inches and 4.00 inches, covering a wide range of Harley Davidson FXST models from 1999 to 2008. Made in the USA, the Jims Piston Ring End Gap Tool offers durability and precision, making it an essential addition to any motorcycle maintenance toolkit. Its compact size and straightforward operation make ring gap measurement faster, more accurate, and less guesswork-prone, ultimately contributing to improved engine performance and longevity. Along with the tool, accessory items such as the Mini Motorcycle Lift Tool, Gasoila Red Varnish Sealant, and Gasgacinch Gasket Sealer are recommended to support comprehensive engine repair and maintenance tasks.
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