2004 Bombardier Quest/Traxter Series Shop Manual, Page 119Get this manual
Section 03 ENGINE QUEST Subsection 07 (LUBRICATION SYSTEM)
R610motr264A
1Valve piston 2Compression spring 3Oil pressure regulator plug
NOTE: The following steps to remove the drive gears (no13 to no19) are not necessary to replace only the oil pump retaining ring no15 then drive gear no14 CAUTION: Never use the retaining ring second timeAlways replace by new oneNOTE: Drive gear is snapped on needle pinThis needle pin passes through the balancing shaft needle pin no13 distance sleeve no19 thrust washer no17 pin no16 intermediate gear no18
Inspection
Inspect valve piston for scoring or other damagesCheck compression spring for free lengthCOMPRESSION SPRING FREE LENGTH NEW NOMINAL SERVICE LIMIT 64 mm (2.519 in) 62 mm (2.441 in)