Function: Tested overall engine health — vacuum readings for intake leaks and valve condition, leakage test for piston rings, valves, and cylinder sealing. Right unit: Sun U-802 (Vacuum/Cylinder Leakage Unit).
Vintage Sun Electric Model 45 Timing Light Red Bakelite
Vintage Sun Electric U-82 Volt Dwell / U-803 Combustion Efficiency Not Tested
Vintage Sun Electric Corporation Battery Starter Tester Model BST-10 W/Manual
Vintage Sun Electric Corp No 840-5, Motor Compression Tester, Made in the USA
Vintage Sun Electric Corp Transistor Regulator Model TRT-12, + 6 leads