Eastern Technology's Differential Cylinder Pressure Testers quickly locate worn and cracked rings, defective intake and exhaust valves, scored and cracked cylinders, leaky head gaskets, and worn and stripped spark plug bushings; virtually every potential cause of pressure loss.

Pictured is our Model E2M Tester, for cylinders of less than a 5.00 inch bore^* with a .040 inch diameter orifice, that eliminates all guess-work by enabling you to determine the exact location and cause of your engine's efficiency loss. This tester is recommended by TCM per Service Bulletin SB03-3.

Our Model E2M includes:

New Slow Fill Valve^TM
Safely find TDC
Safely bleed cylinder test pressure to zero for testing multiple cylinders
No repeated pressure adjustments

New Master Orifice Valve^TM
Built in Master Orifice, for fast and easy Master Orifice Test

For Cylinders with a 5.00 inch bore and Over^*
order our Model E2M-1000 with a .060 inch diameter orifice.

^*(Per F.A.A. Ac 43.13-iB Chapter 8, 8-14) This product is protected under patent claims issued and/or pending.