Longacre Engine Compression Tester (manufacturer part number 52-73025). Mechanical engine compression tester with 0–300 PSI measuring range and a 14 mm spark-plug adapter. Used to check cylinder sealing, valve condition, piston-ring sealing and possible head-gasket problems.
Analog gauge; 0–300 PSI; 14 mm adapter; supplied individually.
Confirm spark-plug thread size and follow the engine manufacturer's testing procedure. Disable ignition and fuel delivery before cranking and compare cylinder readings under consistent conditions.
Use the 14 mm adapter only where its thread, reach and clearance match the engine's spark-plug port. A compression reading helps identify a sealing problem; use the engine maker's diagnostic procedure to determine the cause.
SKU:BJFG_52-73025
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Longacre Engine Compression Tester (manufacturer part number 52-73025). Mechanical engine compression tester with 0–300 PSI measuring range and a 14 mm spark-plug adapter. Used to check cylinder sealing, valve condition, piston-ring sealing and possible head-gasket problems.
Analog gauge; 0–300 PSI; 14 mm adapter; supplied individually.
Confirm spark-plug thread size and follow the engine manufacturer's testing procedure. Disable ignition and fuel delivery before cranking and compare cylinder readings under consistent conditions.
Use the 14 mm adapter only where its thread, reach and clearance match the engine's spark-plug port. A compression reading helps identify a sealing problem; use the engine maker's diagnostic procedure to determine the cause.