2004 Bombardier Outlander 330/400 Factory Service Manual, Page 77Get this manual
Section 03 ENGINE Subsection 03 (LEAK TEST)
LEAK TEST
GENERAL VERIFICATION
Before performing the cylinder leak test, verify the following: intake portair filter contaminated (clogged) with dirt, sand, etc(leads to worn valves, piston rings and finally to leak of power) CAUTION: In case of piston ring andor valve replacement always clean the whole engine and replace oil and oil filter blue exhaust gas means damagedworn piston rings clamp(s) tightness radiator and hoses oily contamination on leak indicator hole (speed sensor area) means damaged oil seal on water pump shaft coolant out of leak indicator hole means damaged rotary seal on water pump shaft (refer to COOLING SYSTEM) coolant escaping from water pump housing means damaged gasket(s) andor loosened screws (refer to COOLING SYSTEM)NOTE: For all the checkpoints mentioned above see the appropriate engine section to diagnose and repair the engineRemove: LH side panel radiator cap Inlet hose of CVT coverUnplug and remove spark plug cableRemove spark plug from cylinder head2 1