Circus
Husqvarna
AA Class
I recently had the right case off to work on the clutch. I noticed that the oil pump gerotor was scored on the outside, and the oil pump housing was also scored. To be clear there are two gerotors. The thinner pair shown here on the left go on the back side of the oil pump housing. The thicker pair shown here on the right go on the front side of the oil pump housing facing in the photo here. The gerotors are only about $15 each ($30 total) but the housing was around $70.
Read this thread on realigning the housing properly with the case to damaging the groove in the crank and break off one of the tangs: http://www.advrider.com/forums/showthread.php?t=255593
I also show the parts list below. The oil pump housing is #2, the alignment pin is #6, and #7 is spacer that also has an alignment hole in it. You need to line up the hole in the spacer with the hole in the side case, and then line up the oil pump housing.
Read this thread on realigning the housing properly with the case to damaging the groove in the crank and break off one of the tangs: http://www.advrider.com/forums/showthread.php?t=255593
I also show the parts list below. The oil pump housing is #2, the alignment pin is #6, and #7 is spacer that also has an alignment hole in it. You need to line up the hole in the spacer with the hole in the side case, and then line up the oil pump housing.


