Hydraulic Valve Lifters: Inspection
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 1995 Ford RV Cutaway, 1995 Ford Pickup, 1995 Ford F-Super Duty, 1995 Ford Econoline, and 1995 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
- Service lifters as an assembly only. Disassemble and clean lifters before testing. Test lifters with hydraulic lifter test fluid. DO NOT interchange parts between lifters.
- Leak-down rate on hydraulic lifters is 10-50 seconds with 1/16" (1.6 mm) plunger travel under 50 lb. (23 kg) load. Replace lifter if it fails leak-down test, or if it is worn or damaged.