If the water pump is bad or there is a leak elsewhere, remember the cooling system is pressurized and it will force water thru the rings into the chamber. Or I should say it can. Does or did your overflow spill over ever? if not the excess pressure might have filled up yer case.... I'm prayin for better luck for you, especially after all you've done to that machine.
2001 SPORTSMAN 500 HO REMINGTON SPECIAL EDITION
FOOD PLOTTER, WORKHORSE, TRAIL BREAKING HUNTING MACHINE
CLUTCH WORK SET TO "TRACTOR"