I got a email from John M, dated 2008
Jim,
Here is an easy test to prep for swimming a V100/150, I used it many
times overseas. Test 1. Close all side lower doors sides and rear.
Install the drain plugs. Insure doors seals and handles are fitting
properly. Then place a garden hose in the hull (I have used fire hoses
to make go faster) then fill the hull up to just below the vent on the
t-case but not over the vent. Inspect for leaks around doors, hull
cracks, axles vent lines and drain plugs and drive-shaft boots.
Test 1A. Use bilge pumps to pump out water, and ensure both pumps are
working.
Test 2. Test outside around headlights for leaks repairs if found.
Test 3. Block or tape off winch cable opening and then fill wench
compartment up with water. Inspect the winch motor boot inside driver's
station for leaks.
Test 4. Test vision blocks and battery access door for leaks.
Prep for swim, silicon fuel cap ballistic covers to hull to prevent
water from entering tanks. Add silicon around gun-port covers too would
help.
The rest is in the manual, but a safety line for the first time in the
water is a good idea. Fix the cable to v100 the other end to a tow
vehicle; drive slowly out in the water until the v100 floats (bilge
pumps on the whole time). In fresh water you will sit lower than
saltwater and the water will almost be up to the bottom of the front
driver's vision blocks.
A trick for level floating, fill only the right fuel tank leaving the
left tank empty, the right tank will counter balance the effect of the
weight of the engine/transmission on left rear for the most part.
And I would say in my operator's classes, safety, safety, safety!!
John