2004 Ski-Doo REV Series Factory Service Manual, Page 160Get this manual
Section 04 ENGINE Subsection 05 (LIQUID COOLING SYSTEM)
COOLING SYSTEM LEAK TEST
WARNING
To prevent burning yourself, do not remove the radiator cap if the engine is hotInstall special radiator cap (PN 529 021 400) included in engine leak tester kit (PN 861 749 100) on coolant tankInstall hose pincher (PN 295 000 076) on overflow hoseUsing pump also included in kit pressurize all system through coolant reservoir to 100 kPa (15 PSI)Check all hoses and cylinderbase for coolant leaksSpray soapwater solution and look for air bubbles295 000 076 529 021 400
DISASSEMBLY AND ASSEMBLY
Coolant Pump
Refer to BOTTOM END section
Sender and Plug
Apply Loctite 592 (PN 293 800 018) thread sealant on sender no3 and plug no4 to avoid leaks
Pressure Cap