All Johnson outboard and Stern-drive gearcases can now be pressure tested for leakage with the device shown in FIGURE #1. Leakage can be detected in a matter of minutes through the following procedures.

If leakage is apparent, due to loss of lubricant, merely pressurize the gearcase FIGURE #2 and inspect for signs of lubricant seepage. If inspection does not reveal leakage on exposed areas, it will be necessary to remove the assembly so that further inspection can be made of concealed areas - shift rod, driveshaft seal, etc. NOTE: A gearcase's ability to hold pressure determines whether or not leakage is present.

Gearcases should also be checked after repairs. This can be done simply by pressurizing the gearcase before lubricant has been added. Submerge the pressurized assembly in your test tank, and watch closely for any indication of air seepage.

During gearcase assembly always use recommended sealing compounds and liberally coat driveshaft, propeller shaft, and shift rod seals with gearcase lubricant.

The S-34 Gearcase Leakage Tester is of durable construction, and comes complete with operating instructions. Don't hesitate. Place your order today. The season is upon us, and every minute saved will mean greater profit.