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Flex Drive Compression Tester (0–300 PSI) – Professional Engine Testing Tool Kit - Performance Tool (W80579)
- Sale Price: $21.52
Details
Details
- Brand:
- SKU:
W80579
- Description:
Analog flex‑drive compression tester used to measure cylinder pressure on gasoline engines. Features a 0–300 PSI gauge, 11-inch flexible rubber hose, air-hold valve, and gauge reset button. Threads into 14 mm and 18 mm spark plug holes. UPC: 039564805790.
- Condition: New
Additional Information
Additional Information
| FITMENT | Universal tool for checking cylinder compression on most gasoline engines via 14 mm and 18 mm spark plug threads. For smaller plug sizes (10 mm, 12 mm, and 16 mm Ford), use the compatible adapter set W80577. Not intended for diesel engines; use a dedicated diesel compression tester. Universal N/A (N/A): Most gasoline engines with 14 mm or 18 mm spark plug threads |
| SYMPTOM | Use a compression tester when diagnosing misfires (e.g., P0300–P030x), rough idle, loss of power, hard starting, or suspected mechanical engine wear. |
| TROUBLESHOOTING | Compare all cylinder readings—highest to lowest should be within about 15%. If a low cylinder improves markedly after adding a small amount of oil, piston rings may be worn; if not, suspect valves. A pair of adjacent low cylinders may indicate a head‑gasket issue. Readings below ~100 PSI generally indicate a mechanically unsound cylinder. |
| INSTALLATION | Disable fuel and ignition per the vehicle manual (e.g., remove fuel pump fuse and disconnect ignition), remove all spark plugs, thread the tester’s 14 mm or 18 mm adapter by hand until the O‑ring seals (do not use a wrench), crank the engine 5–6 revolutions, record and reset the gauge between cylinders. |
| MAINTENANCE | |
| GENERAL NOTES | Includes 0–300 PSI gauge, air-hold valve, and gauge reset button; 11 in. flexible hose helps access tight plug wells. For small-plug applications, adapter kit W80577 adds 10 mm, 12 mm, and 16 mm (Ford) options and fits this tester. Follow all safety warnings in the included instructions. |
| FAULT CODES | |
| REPLACEMENT | |
| WEIGHT | 0.80 lb |
| DIMENSIONS | 5.2 x 1.6 x 11.9 inches |