This tool allows you to test all Twin Cam and M8 piston cooling jets. Leaking piston cooling jets can send too much oil into the crankcase, causing high engine oil sump levels. Clogged cooling jets can reduce or eliminate lubrication to the pistons and cylinders. Helps diagnose or prevent issues prior finishing up an engine build.
Note: This fmc-707-289 tester block is designed to be used with Feuling's fmc-566-117 Twin Cam pressure relief valve tool. This fmc-707-289 block Includes the tool plate and fasteners to be used with Feuling's fmc-566-117 tool.
Note: See fmc-707-290 for the complete & ready to use piston cooling jet tester kit.
