Hi Michael, and thanks for confirming my diagnosis.
Lovemygreen, Just to give you some info when ordering; Primary Chain: (engine shaft small sprocket to inner cylinder reel sprocket) : 3/8" pitch All the other chains are 1/2" pitch
To remove the engine and clutch assembly to replace the thrust pad....check out the video....Click HERE
Please do not PM me asking for support. Please post your questions in the appropriate forums, as the replies it may receive may help all members, not just the individual member. Kindest Regards, Darryl